This page has only limited features, please log in for full access.

Unclaimed
Paulo Tarso Sanches de Oliveira
Faculty of Engineering, Architecture and Urbanism and Geography, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Technical note
Published: 04 August 2021 in Remote Sensing
Reads 0
Downloads 0

Urban forests are an important part of any city, given that they provide several environmental benefits, such as improving urban drainage, climate regulation, public health, biodiversity, and others. However, tree detection in cities is challenging, given the irregular shape, size, occlusion, and complexity of urban areas. With the advance of environmental technologies, deep learning segmentation mapping methods can map urban forests accurately. We applied a region-based CNN object instance segmentation algorithm for the semantic segmentation of tree canopies in urban environments based on aerial RGB imagery. To the best of our knowledge, no study investigated the performance of deep learning-based methods for segmentation tasks inside the Cerrado biome, specifically for urban tree segmentation. Five state-of-the-art architectures were evaluated, namely: Fully Convolutional Network; U-Net; SegNet; Dynamic Dilated Convolution Network and DeepLabV3+. The experimental analysis showed the effectiveness of these methods reporting results such as pixel accuracy of 96,35%, an average accuracy of 91.25%, F1-score of 91.40%, Kappa of 82.80% and IoU of 73.89%. We also determined the inference time needed per area, and the deep learning methods investigated after the training proved to be suitable to solve this task, providing fast and effective solutions with inference time varying from 0.042 to 0.153 minutes per hectare. We conclude that the semantic segmentation of trees inside urban environments is highly achievable with deep neural networks. This information could be of high importance to decision-making and may contribute to the management of urban systems. It should be also important to mention that the dataset used in this work is available on our website.

ACS Style

José Martins; Keiller Nogueira; Lucas Osco; Felipe Gomes; Danielle Furuya; Wesley Gonçalves; Diego Sant’Ana; Ana Ramos; Veraldo Liesenberg; Jefersson dos Santos; Paulo de Oliveira; José Junior. Semantic Segmentation of Tree-Canopy in Urban Environment with Pixel-Wise Deep Learning. Remote Sensing 2021, 13, 3054 .

AMA Style

José Martins, Keiller Nogueira, Lucas Osco, Felipe Gomes, Danielle Furuya, Wesley Gonçalves, Diego Sant’Ana, Ana Ramos, Veraldo Liesenberg, Jefersson dos Santos, Paulo de Oliveira, José Junior. Semantic Segmentation of Tree-Canopy in Urban Environment with Pixel-Wise Deep Learning. Remote Sensing. 2021; 13 (16):3054.

Chicago/Turabian Style

José Martins; Keiller Nogueira; Lucas Osco; Felipe Gomes; Danielle Furuya; Wesley Gonçalves; Diego Sant’Ana; Ana Ramos; Veraldo Liesenberg; Jefersson dos Santos; Paulo de Oliveira; José Junior. 2021. "Semantic Segmentation of Tree-Canopy in Urban Environment with Pixel-Wise Deep Learning." Remote Sensing 13, no. 16: 3054.

Journal article
Published: 09 June 2021 in Hydrology and Earth System Sciences
Reads 0
Downloads 0

In this paper, we present the Catchments Attributes for Brazil (CABra), which is a large-sample dataset for Brazilian catchments that includes long-term data (30 years) for 735 catchments in eight main catchment attribute classes (climate, streamflow, groundwater, geology, soil, topography, land cover, and hydrologic disturbance). We have collected and synthesized data from multiple sources (ground stations, remote sensing, and gridded datasets). To prepare the dataset, we delineated all the catchments using the Multi-Error-Removed Improved-Terrain Digital Elevation Model (MERIT DEM) and the coordinates of the streamflow stations provided by the Brazilian Water Agency, where only the stations with 30 years (1980–2010) of data and less than 10 % of missing records were included. Catchment areas range from 9 to 4 800 000 km2, and the mean daily streamflow varies from 0.02 to 9 mm d−1. Several signatures and indices were calculated based on the climate and streamflow data. Additionally, our dataset includes boundary shapefiles, geographic coordinates, and drainage area for each catchment, aside from more than 100 attributes within the attribute classes. The collection and processing methods are discussed, along with the limitations for each of our multiple data sources. CABra intends to improve the hydrology-related data collection in Brazil and pave the way for a better understanding of different hydrologic drivers related to climate, landscape, and hydrology, which is particularly important in Brazil, having continental-scale river basins and widely heterogeneous landscape characteristics. In addition to benefitting catchment hydrology investigations, CABra will expand the exploration of novel hydrologic hypotheses and thereby advance our understanding of Brazilian catchments' behavior. The dataset is freely available at https://doi.org/10.5281/zenodo.4070146 and https://thecabradataset.shinyapps.io/CABra/ (last access: 7 June 2021).

ACS Style

André Almagro; Paulo Tarso S. Oliveira; Antônio Alves Meira Neto; Tirthankar Roy; Peter Troch. CABra: a novel large-sample dataset for Brazilian catchments. Hydrology and Earth System Sciences 2021, 25, 3105 -3135.

AMA Style

André Almagro, Paulo Tarso S. Oliveira, Antônio Alves Meira Neto, Tirthankar Roy, Peter Troch. CABra: a novel large-sample dataset for Brazilian catchments. Hydrology and Earth System Sciences. 2021; 25 (6):3105-3135.

Chicago/Turabian Style

André Almagro; Paulo Tarso S. Oliveira; Antônio Alves Meira Neto; Tirthankar Roy; Peter Troch. 2021. "CABra: a novel large-sample dataset for Brazilian catchments." Hydrology and Earth System Sciences 25, no. 6: 3105-3135.

Article
Published: 03 May 2021
Reads 0
Downloads 0

Many remote sensing-based evapotranspiration (RSBET) algorithms have been proposed in the past decades and evaluated using flux tower data, mainly over North America and Europe. Model evaluation across South America has been done locally or using only a single algorithm at a time. Here, we provide the first evaluation of multiple RSBET models, at a daily scale, across a wide variety of biomes, climate zones, and land uses in South America. We used meteorological data from 25 flux towers to force four remote sensing based ET models: Priestley & Taylor Jet Propulsion Laboratory (PT-JPL), Global Land Evaporation Amsterdam Model (GLEAM), Penman-Monteith Mu model (PM-MOD), and Penman-Monteith Nagler model (PM-VI). ET was predicted satisfactorily by all four models, with correlations consistently higher (R²>0.6) for GLEAM and PT-JPL, and PM-MOD and PM-VI presenting overall better responses in terms of PBIAS (-10

ACS Style

Davi De Carvalho Diniz MeloiD; Jamil A.A. AnacheiD; Edson WendlandiD; Valéria Peixoto BorgesiD; Diego G. MirallesiD; Brecht Martens; Joshua Fisher; Rodolfo L. B. NobregaiD; Alvaro Moreno; Osvaldo M R Cabral; Thiago Rangel RodriguesiD; Bergson Bezerra; Cláudio Moisés Santos e Silva; Antonio Alves Meira NetoiD; Magna S. B. Moura; Thiago Valentim Marques; Suany CamposiD; José De Souza Nogueira; Rafael RosolemiD; Rodolfo Souza; Antonio C. D. Antonino; David HolliD; Mauricio GalleguillosiD; Jorge F. Perez-QuezadaiD; Anne VerhoefiD; Lars Kutzbach; José Romualdo De Sousa LimaiD; Eduardo Soares de Souza; María I. GassmaniD; Claudio F Pérezid; Natalia TontiiD; Gabriela PosseiD; Dominik RainsiD; Paulo Tarso Sanches OliveiraiD. Are remote sensing evapotranspiration models reliable across South American climates and ecosystems? 2021, 1 .

AMA Style

Davi De Carvalho Diniz MeloiD, Jamil A.A. AnacheiD, Edson WendlandiD, Valéria Peixoto BorgesiD, Diego G. MirallesiD, Brecht Martens, Joshua Fisher, Rodolfo L. B. NobregaiD, Alvaro Moreno, Osvaldo M R Cabral, Thiago Rangel RodriguesiD, Bergson Bezerra, Cláudio Moisés Santos e Silva, Antonio Alves Meira NetoiD, Magna S. B. Moura, Thiago Valentim Marques, Suany CamposiD, José De Souza Nogueira, Rafael RosolemiD, Rodolfo Souza, Antonio C. D. Antonino, David HolliD, Mauricio GalleguillosiD, Jorge F. Perez-QuezadaiD, Anne VerhoefiD, Lars Kutzbach, José Romualdo De Sousa LimaiD, Eduardo Soares de Souza, María I. GassmaniD, Claudio F Pérezid, Natalia TontiiD, Gabriela PosseiD, Dominik RainsiD, Paulo Tarso Sanches OliveiraiD. Are remote sensing evapotranspiration models reliable across South American climates and ecosystems? . 2021; ():1.

Chicago/Turabian Style

Davi De Carvalho Diniz MeloiD; Jamil A.A. AnacheiD; Edson WendlandiD; Valéria Peixoto BorgesiD; Diego G. MirallesiD; Brecht Martens; Joshua Fisher; Rodolfo L. B. NobregaiD; Alvaro Moreno; Osvaldo M R Cabral; Thiago Rangel RodriguesiD; Bergson Bezerra; Cláudio Moisés Santos e Silva; Antonio Alves Meira NetoiD; Magna S. B. Moura; Thiago Valentim Marques; Suany CamposiD; José De Souza Nogueira; Rafael RosolemiD; Rodolfo Souza; Antonio C. D. Antonino; David HolliD; Mauricio GalleguillosiD; Jorge F. Perez-QuezadaiD; Anne VerhoefiD; Lars Kutzbach; José Romualdo De Sousa LimaiD; Eduardo Soares de Souza; María I. GassmaniD; Claudio F Pérezid; Natalia TontiiD; Gabriela PosseiD; Dominik RainsiD; Paulo Tarso Sanches OliveiraiD. 2021. "Are remote sensing evapotranspiration models reliable across South American climates and ecosystems?" , no. : 1.

Journal article
Published: 31 March 2021 in Environmental Research
Reads 0
Downloads 0

Soil erosion can present a major threat to agriculture due to loss of soil, nutrients, and organic carbon. Therefore, soil erosion modelling is one of the steps used to plan suitable soil protection measures and detect erosion hotspots. A bibliometric analysis of this topic can reveal research patterns and soil erosion modelling characteristics that can help identify steps needed to enhance the research conducted in this field. Therefore, a detailed bibliometric analysis, including investigation of collaboration networks and citation patterns, should be conducted. The updated version of the Global Applications of Soil Erosion Modelling Tracker (GASEMT) database contains information about citation characteristics and publication type. Here, we investigated the impact of the number of authors, the publication type and the selected journal on the number of citations. Generalized boosted regression tree (BRT) modelling was used to evaluate the most relevant variables related to soil erosion modelling. Additionally, bibliometric networks were analysed and visualized. This study revealed that the selection of the soil erosion model has the largest impact on the number of publication citations, followed by the modelling scale and the publication's CiteScore. Some of the other GASEMT database attributes such as model calibration and validation have negligible influence on the number of citations according to the BRT model. Although it is true that studies that conduct calibration, on average, received around 30% more citations, than studies where calibration was not performed. Moreover, the bibliographic coupling and citation networks show a clear continental pattern, although the co-authorship network does not show the same characteristics. Therefore, soil erosion modellers should conduct even more comprehensive review of past studies and focus not just on the research conducted in the same country or continent. Moreover, when evaluating soil erosion models, an additional focus should be given to field measurements, model calibration, performance assessment and uncertainty of modelling results. The results of this study indicate that these GASEMT database attributes had smaller impact on the number of citations, according to the BRT model, than anticipated, which could suggest that these attributes should be given additional attention by the soil erosion modelling community. This study provides a kind of bibliographic benchmark for soil erosion modelling research papers as modellers can estimate the influence of their paper.

ACS Style

Nejc Bezak; Matjaž Mikoš; Pasquale Borrelli; Christine Alewell; Pablo Alvarez; Jamil Alexandre Ayach Anache; Jantiene Baartman; Cristiano Ballabio; Marcella Biddoccu; Artemi Cerdà; Devraj Chalise; Songchao Chen; Walter Chen; Anna Maria De Girolamo; Gizaw Desta Gessesse; Detlef Deumlich; Nazzareno Diodato; Nikolaos Efthimiou; Gunay Erpul; Peter Fiener; Michele Freppaz; Francesco Gentile; Andreas Gericke; Nigussie Haregeweyn; Bifeng Hu; Amelie Jeanneau; Konstantinos Kaffas; Mahboobeh Kiani-Harchegani; Ivan Lizaga Villuendas; Changjia Li; Luigi Lombardo; Manuel López-Vicente; Manuel Esteban Lucas-Borja; Michael Maerker; Chiyuan Miao; Sirio Modugno; Markus Möller; Victoria Naipal; Mark Nearing; Stephen Owusu; Dinesh Panday; Edouard Patault; Cristian Valeriu Patriche; Laura Poggio; Raquel Portes; Laura Quijano; Mohammad Reza Rahdari; Mohammed Renima; Giovanni Francesco Ricci; Jesús Rodrigo-Comino; Sergio Saia; Aliakbar Nazari Samani; Calogero Schillaci; Vasileios Syrris; Hyuck Soo Kim; Diogo Noses Spinola; Paulo Tarso Oliveira; Hongfen Teng; Resham Thapa; Konstantinos Vantas; Diana Vieira; Jae E. Yang; Shuiqing Yin; Demetrio Antonio Zema; Guangju Zhao; Panos Panagos. Soil erosion modelling: A bibliometric analysis. Environmental Research 2021, 197, 111087 .

AMA Style

Nejc Bezak, Matjaž Mikoš, Pasquale Borrelli, Christine Alewell, Pablo Alvarez, Jamil Alexandre Ayach Anache, Jantiene Baartman, Cristiano Ballabio, Marcella Biddoccu, Artemi Cerdà, Devraj Chalise, Songchao Chen, Walter Chen, Anna Maria De Girolamo, Gizaw Desta Gessesse, Detlef Deumlich, Nazzareno Diodato, Nikolaos Efthimiou, Gunay Erpul, Peter Fiener, Michele Freppaz, Francesco Gentile, Andreas Gericke, Nigussie Haregeweyn, Bifeng Hu, Amelie Jeanneau, Konstantinos Kaffas, Mahboobeh Kiani-Harchegani, Ivan Lizaga Villuendas, Changjia Li, Luigi Lombardo, Manuel López-Vicente, Manuel Esteban Lucas-Borja, Michael Maerker, Chiyuan Miao, Sirio Modugno, Markus Möller, Victoria Naipal, Mark Nearing, Stephen Owusu, Dinesh Panday, Edouard Patault, Cristian Valeriu Patriche, Laura Poggio, Raquel Portes, Laura Quijano, Mohammad Reza Rahdari, Mohammed Renima, Giovanni Francesco Ricci, Jesús Rodrigo-Comino, Sergio Saia, Aliakbar Nazari Samani, Calogero Schillaci, Vasileios Syrris, Hyuck Soo Kim, Diogo Noses Spinola, Paulo Tarso Oliveira, Hongfen Teng, Resham Thapa, Konstantinos Vantas, Diana Vieira, Jae E. Yang, Shuiqing Yin, Demetrio Antonio Zema, Guangju Zhao, Panos Panagos. Soil erosion modelling: A bibliometric analysis. Environmental Research. 2021; 197 ():111087.

Chicago/Turabian Style

Nejc Bezak; Matjaž Mikoš; Pasquale Borrelli; Christine Alewell; Pablo Alvarez; Jamil Alexandre Ayach Anache; Jantiene Baartman; Cristiano Ballabio; Marcella Biddoccu; Artemi Cerdà; Devraj Chalise; Songchao Chen; Walter Chen; Anna Maria De Girolamo; Gizaw Desta Gessesse; Detlef Deumlich; Nazzareno Diodato; Nikolaos Efthimiou; Gunay Erpul; Peter Fiener; Michele Freppaz; Francesco Gentile; Andreas Gericke; Nigussie Haregeweyn; Bifeng Hu; Amelie Jeanneau; Konstantinos Kaffas; Mahboobeh Kiani-Harchegani; Ivan Lizaga Villuendas; Changjia Li; Luigi Lombardo; Manuel López-Vicente; Manuel Esteban Lucas-Borja; Michael Maerker; Chiyuan Miao; Sirio Modugno; Markus Möller; Victoria Naipal; Mark Nearing; Stephen Owusu; Dinesh Panday; Edouard Patault; Cristian Valeriu Patriche; Laura Poggio; Raquel Portes; Laura Quijano; Mohammad Reza Rahdari; Mohammed Renima; Giovanni Francesco Ricci; Jesús Rodrigo-Comino; Sergio Saia; Aliakbar Nazari Samani; Calogero Schillaci; Vasileios Syrris; Hyuck Soo Kim; Diogo Noses Spinola; Paulo Tarso Oliveira; Hongfen Teng; Resham Thapa; Konstantinos Vantas; Diana Vieira; Jae E. Yang; Shuiqing Yin; Demetrio Antonio Zema; Guangju Zhao; Panos Panagos. 2021. "Soil erosion modelling: A bibliometric analysis." Environmental Research 197, no. : 111087.

Journal article
Published: 22 December 2020 in Water
Reads 0
Downloads 0

Water scarcity is a key challenge to global development. In Brazil, the Sao Francisco River Basin (SFB) has experienced water scarcity problems because of decreasing streamflow and increasing demands from multiple sectors. However, the drivers of decreased streamflow, particularly the potential role of the surface-groundwater interaction, have not yet been investigated. Here, we assess long-term trends in the streamflow and baseflow of the SFB during 1980–2015 and constrain the most likely drivers of observed decreases through a trend analysis of precipitation (P), evapotranspiration (ET), and terrestrial water storage change (TWS). We found that, on average, over 86% of the observed decrease in streamflow can be attributed to a significant decreasing baseflow trend along the SFR, with a spatial agreement between the decreased baseflow, increased ET, and irrigated agricultural land in the Middle SFB. We also noted a decreasing trend in TWS across the SFB exceeding –20 mm year−1. Overall, our findings indicate that decreasing groundwater contributions (i.e., baseflow) are providing the observed reduction in the total SFR flow. A lack of significant P trends and the strong TWS depletion indicate that a P variability only has likely not caused the observed baseflow reduction, in mainly the Middle and Sub-middle SFB. Therefore, groundwater and surface withdrawals may likely be a driver of baseflow reduction in some regions of the SFB.

ACS Style

Murilo Cesar Lucas; Natalya Kublik; Dulce B. B. Rodrigues; Antonio A. Meira Neto; André Almagro; Davi De C. D. Melo; Samuel C. Zipper; Paulo Tarso Sanches Oliveira. Significant Baseflow Reduction in the Sao Francisco River Basin. Water 2020, 13, 2 .

AMA Style

Murilo Cesar Lucas, Natalya Kublik, Dulce B. B. Rodrigues, Antonio A. Meira Neto, André Almagro, Davi De C. D. Melo, Samuel C. Zipper, Paulo Tarso Sanches Oliveira. Significant Baseflow Reduction in the Sao Francisco River Basin. Water. 2020; 13 (1):2.

Chicago/Turabian Style

Murilo Cesar Lucas; Natalya Kublik; Dulce B. B. Rodrigues; Antonio A. Meira Neto; André Almagro; Davi De C. D. Melo; Samuel C. Zipper; Paulo Tarso Sanches Oliveira. 2020. "Significant Baseflow Reduction in the Sao Francisco River Basin." Water 13, no. 1: 2.

Journal article
Published: 06 December 2020 in International Soil and Water Conservation Research
Reads 0
Downloads 0

We present a new approach for calculating the C-factor of RUSLE considering the effect of low-reflectance vegetation cover areas on the reduction of the effects on erosion caused by rainfall seasonality. For this, we propose the coefficients Cr2 (rescaled 2) and C-PC (Precipitation Correction), which represent the C-factor, and an adaptation in NDVI calculation, according to the seasonality of precipitation (NDVI-PC). The Cr2 factor is used when there is no seasonal effect of rainfall on vegetation, while the C-PC factor is calculated for localities under the influence of seasonality, from NDVI-PC. The proposed approaches were tested using different satellites images in the Palmares-Ribeirão do Saco watershed, Rio de Janeiro, Brazil. The values of Cr2 and C-PC factors were compared to the Cr factor (rescaled) and to mean values from the literature for different land covers. Our results indicated that the Cr2 factor represents an improvement in accuracy in relation to Cr by considering specific values of the studied area to normalize the data without generalizations. Furthermore, the C-PC factor is able to simulate the effect of seasonality, providing more realistics values of soil loss by the RUSLE as a function of the proportion of area affected by the rainfall seasonality obtained from NDVI-PC. We conclude that both Cr2 and C-PC factors generate values similar of the C-factor observed in the literature, and therefore are able to provide better soil loss estimation than that using the Cr factor.

ACS Style

Pietro Menezes Sanchez Macedo; Paulo Tarso Sanches Oliveira; Mauro Antonio Homem Antunes; Valdemir Lucio Durigon; Elaine Cristina Cardoso Fidalgo; Daniel Fonseca de Carvalho. New approach for obtaining the C-factor of RUSLE considering the seasonal effect of rainfalls on vegetation cover. International Soil and Water Conservation Research 2020, 9, 207 -216.

AMA Style

Pietro Menezes Sanchez Macedo, Paulo Tarso Sanches Oliveira, Mauro Antonio Homem Antunes, Valdemir Lucio Durigon, Elaine Cristina Cardoso Fidalgo, Daniel Fonseca de Carvalho. New approach for obtaining the C-factor of RUSLE considering the seasonal effect of rainfalls on vegetation cover. International Soil and Water Conservation Research. 2020; 9 (2):207-216.

Chicago/Turabian Style

Pietro Menezes Sanchez Macedo; Paulo Tarso Sanches Oliveira; Mauro Antonio Homem Antunes; Valdemir Lucio Durigon; Elaine Cristina Cardoso Fidalgo; Daniel Fonseca de Carvalho. 2020. "New approach for obtaining the C-factor of RUSLE considering the seasonal effect of rainfalls on vegetation cover." International Soil and Water Conservation Research 9, no. 2: 207-216.

Preprint content
Published: 14 October 2020
Reads 0
Downloads 0

In this paper, we present the Catchments Attributes for Brazil (CABra), which is a large-sample dataset for Brazilian catchments that includes long-term data (30 years) for 735 catchments in eight main catchment attribute classes (climate, streamflow, groundwater, geology, soil, topography, land-cover, and hydrologic disturbance). We have collected and synthesized data from multiple sources (ground stations, remote sensing, and gridded datasets). To prepare the dataset, we delineated all the catchments using the Multi-Error-Removed Improved-Terrain Digital Elevation Model and the coordinates of the streamflow stations provided by the Brazilian Water Agency, where only the stations with 30 years (1980–2010) of data and less than 10 % of missing records were included. Catchment areas range from 9 to 4 800 000 km2 and the mean daily streamflow varies from 0.02 to 9 mm d-1. Several signatures and indices were calculated based on the climate and streamflow data. Additionally, our dataset includes boundary shapefiles, geographic coordinates, and drainage area for each catchment, aside from more than 100 attributes within the attribute classes. The collection and processing methods are discussed along with the limitations for each of our multiple data sources. The CABra intends to improve the hydrology-related data collection in Brazil and pave the way for a better understanding of different hydrologic drivers related to climate, landscape, and hydrology, which is particularly important in Brazil, having continental-scale river basins and widely heterogeneous landscape characteristics. In addition to benefitting catchment hydrology investigations, CABra will expand the exploration of novel hydrologic hypotheses and thereby advance our understanding of Brazilian catchments' behavior. The dataset is freely available at https://doi.org/10.5281/zenodo.4070147.

ACS Style

André Almagro; Paulo Tarso S. Oliveira; Antônio Alves Meira Neto; Tirthankar Roy; Peter Troch. CABra: a novel large-sample dataset for Brazilian catchments. 2020, 2020, 1 -40.

AMA Style

André Almagro, Paulo Tarso S. Oliveira, Antônio Alves Meira Neto, Tirthankar Roy, Peter Troch. CABra: a novel large-sample dataset for Brazilian catchments. . 2020; 2020 ():1-40.

Chicago/Turabian Style

André Almagro; Paulo Tarso S. Oliveira; Antônio Alves Meira Neto; Tirthankar Roy; Peter Troch. 2020. "CABra: a novel large-sample dataset for Brazilian catchments." 2020, no. : 1-40.

Preprint
Published: 17 September 2020
Reads 0
Downloads 0

Water scarcity is a key challenge to global development. In Brazil, the Sao Francisco River Basin (SFB) has experienced water scarcity problems because of decreasing streamflow and increasing demands from multiple sectors. However, the drivers of decreased streamflow, particularly the potential role of surface-groundwater interaction, have not been yet investigated. Here, we assess long-term trends in baseflow, quickflow, and streamflow of the SFB during 1980–2015 and constrain the most likely drivers of observed decreases through trend analysis of precipitation (P), evapotranspiration (ET), and terrestrial water storage change (TWS). We found that over 82% of the observed decrease in streamflow can be attributed to a significant decreasing baseflow trend (< -20 m3 s-1 y-1) along the SFR with spatial agreement between decreased baseflow, increased ET, and irrigated agricultural land. We also noted a decrease in TWS across the SFB with trends exceeding -20 mm y-1. Overall, our findings indicate that decreasing groundwater contributions (i.e., baseflow) is providing the observed reduction in total SFR flow. A lack of significant P trends indicates that only P variability likely has not caused the observed baseflow reduction, mainly in the Middle and Sub-middle SFB. Therefore, groundwater and surface withdrawals may be likely a driver of water scarcity over the SFB.

ACS Style

Murilo Cesar Lucas; Natalya Kublik; Dulce B. B. Rodrigues; Antonio A. Meira Neto; André Almagro; Davi De C. D. Melo; Samuel C. Zipper; Paulo Tarso Sanches Oliveira. Significant baseflow reduction in the Sao Francisco River Basin. 2020, 1 .

AMA Style

Murilo Cesar Lucas, Natalya Kublik, Dulce B. B. Rodrigues, Antonio A. Meira Neto, André Almagro, Davi De C. D. Melo, Samuel C. Zipper, Paulo Tarso Sanches Oliveira. Significant baseflow reduction in the Sao Francisco River Basin. . 2020; ():1.

Chicago/Turabian Style

Murilo Cesar Lucas; Natalya Kublik; Dulce B. B. Rodrigues; Antonio A. Meira Neto; André Almagro; Davi De C. D. Melo; Samuel C. Zipper; Paulo Tarso Sanches Oliveira. 2020. "Significant baseflow reduction in the Sao Francisco River Basin." , no. : 1.

Journal article
Published: 06 September 2020 in Agriculture, Ecosystems & Environment
Reads 0
Downloads 0

Ever-increasing water-food-energy demand has led to the depletion of soil resources by mainly inadequate grazing practices. Nevertheless, the effects of different grazing practices on hydrological and soil erosion processes have not yet been well-understood. Therefore, we investigated the influence of different Nitrogen application doses and stocking rates in a pasture under rotational stocking (RS) on soil erosion and water infiltration in the Brazilian Cerrado region. The experimental area was a Panicum maximum pasture and was divided into three treatments with N applications of 100, 200, and 300 kg ha-1, which respectively allowed three stocking rates from 2014 to 2018: 3 (RS-3), 4.1 (RS-4), and 5 AU ha-1 (RS-5). We respectively adopted start and stop grazing heights of 80–90 and 40–50 cm (forage height) in all treatments. To evaluate infiltration and soil erosion, we performed 28 rainfall simulations with intensities ranging from 73.5 to 93.5 mm h-1 in plots of 0.7 m2 from November 2017 to February 2018. The simulations were carried out in random sites inside the central paddocks of each treatment comprising four repetitions in each treatment under vegetation and bare soil. We found stable water infiltration (SIR) and soil loss (SLw) ranging from 65.5 to 87.2 mm h-1 and from 0.03 to 0.15 mg s-1 m-2, respectively. SIR and SLw under RS-5 were respectively 33% greater and 78% lower than under RS-3 despite the 67% higher stocking rate in RS-5. We found that higher stocking rates at optimal grazing pressure did not deteriorate water infiltration and soil erosion. Our findings reveal an opportunity for a 5-fold productivity increase while reducing soil degradation since adaptive stocking rates are supported by grazing processes along with an increase in N fertiliser dose to increase vegetation cover.

ACS Style

Jullian Souza Sone; Paulo Tarso Sanches Oliveira; Valéria Pacheco Batista Euclides; Denise Baptaglin Montagner; Alexandre Romeiro de Araujo; Pedro Alberto Pereira Zamboni; Nelson O.M. Vieira; Glauber Altrão Carvalho; Teodorico Alves Sobrinho. Effects of Nitrogen fertilisation and stocking rates on soil erosion and water infiltration in a Brazilian Cerrado farm. Agriculture, Ecosystems & Environment 2020, 304, 107159 .

AMA Style

Jullian Souza Sone, Paulo Tarso Sanches Oliveira, Valéria Pacheco Batista Euclides, Denise Baptaglin Montagner, Alexandre Romeiro de Araujo, Pedro Alberto Pereira Zamboni, Nelson O.M. Vieira, Glauber Altrão Carvalho, Teodorico Alves Sobrinho. Effects of Nitrogen fertilisation and stocking rates on soil erosion and water infiltration in a Brazilian Cerrado farm. Agriculture, Ecosystems & Environment. 2020; 304 ():107159.

Chicago/Turabian Style

Jullian Souza Sone; Paulo Tarso Sanches Oliveira; Valéria Pacheco Batista Euclides; Denise Baptaglin Montagner; Alexandre Romeiro de Araujo; Pedro Alberto Pereira Zamboni; Nelson O.M. Vieira; Glauber Altrão Carvalho; Teodorico Alves Sobrinho. 2020. "Effects of Nitrogen fertilisation and stocking rates on soil erosion and water infiltration in a Brazilian Cerrado farm." Agriculture, Ecosystems & Environment 304, no. : 107159.

Journal article
Published: 04 September 2020 in Water Resources Research
Reads 0
Downloads 0

Direct runoff and baseflow are the two primary components of total streamflow, and their accurate estimation is indispensable for a variety of hydrologic applications. While direct runoff is the quick response stemming from surface and shallow subsurface flow paths and is often associated with floods, baseflow represents the groundwater contribution from stored sources (e.g., groundwater) to streams and is crucial for environmental flow regulations, and water supply, among others. L'vovich (1979, https://doi.org/10.1029/SP013) proposed a two‐step water balance partitioning, where precipitation is divided into direct runoff and catchment wetting, followed by the disaggregation of the latter into baseflow and evapotranspiration. Here, we investigate the role of the aridity index (ratio between mean‐annual potential evapotranspiration and precipitation) in controlling the long‐term (mean‐annual) fluxes of direct runoff and baseflow. We present an analytical solution beginning with similar assumptions as proposed by Budyko (1974, https://www.elsevier.com/books/climate-and-life/budyko/978-0-12-139450-9), leading to two complementary expressions for the two fluxes. The aridity index explained 77% and 89% of variability in direct runoff and baseflow from 378 catchments within the continental United States, while our formulations were able to reproduce the patterns of water balance partitioning proposed by L'vovich (1979, https://doi.org/10.1029/SP013) at the mean‐annual timescale. Our approach can be used to further understand how climate and landscape controls the terrestrial water balance at mean‐annual timescales, while also representing a step toward the prediction of baseflow and direct runoff at ungauged basins.

ACS Style

Antonio Alves Meira Neto; Tirthankar Roy; Paulo Tarso S. De Oliveira; Peter A. Troch. An Aridity Index‐Based Formulation of Streamflow Components. Water Resources Research 2020, 56, 1 .

AMA Style

Antonio Alves Meira Neto, Tirthankar Roy, Paulo Tarso S. De Oliveira, Peter A. Troch. An Aridity Index‐Based Formulation of Streamflow Components. Water Resources Research. 2020; 56 (9):1.

Chicago/Turabian Style

Antonio Alves Meira Neto; Tirthankar Roy; Paulo Tarso S. De Oliveira; Peter A. Troch. 2020. "An Aridity Index‐Based Formulation of Streamflow Components." Water Resources Research 56, no. 9: 1.

Journal article
Published: 20 May 2020 in Atmospheric Research
Reads 0
Downloads 0

Climate change effects can have significant impacts worldwide. Extreme events can modify water availability and agricultural production, making climate change planning an essential task. The National Institute for Space Research (INPE in Portuguese) in Brazil has made a large dataset of regional climate model outputs (simulations and projections) available, which opens up many possibilities of carrying out high-resolution climate change studies. However, there is still no performance evaluation of the model-derived rainfall output against high-resolution ground-based observation data considering the Brazilian biomes. This paper attempts to fill this gap and evaluates the simulated precipitation throughout Brazil. We used gridded observed precipitation data and historical climate simulations from the Model for Interdisciplinary Research on Climate, version 5 (MIROC5) and from the Hadley Center Global Environment Model, version 2 (HadGEM2-ES), which were downscaled by the Eta RCM (Regional Climate Model). For the overlapping period (1980–2005), there is good agreement (PBIAS up to 10%) of downscaled annual simulations for the Amazon and Cerrado biomes and large biases (reaching 40%) in the Pampa biome, compared to the observations. Our results showed that HadGEM2-ES is capable of representing long-term mean monthly precipitation for large areas well, such as the Amazon and Cerrado. Furthermore, the Eta RCM has considerably improved the driving GCM MIROC5 simulations. In conclusion, we recommend using the HadGEM2-ES simulations for the Amazon, Eta/HadGEM2-ES for the Atlantic Forest, Cerrado, and Pampa, and Eta/MIROC5 for the Caatinga and Pantanal. Our study provides an overview of two downscaled simulation datasets in Brazil that may help verify the models' suitability for further climate change assessments.

ACS Style

André Almagro; Paulo Tarso S. Oliveira; Rafael Rosolem; Stefan Hagemann; Carlos A. Nobre. Performance evaluation of Eta/HadGEM2-ES and Eta/MIROC5 precipitation simulations over Brazil. Atmospheric Research 2020, 244, 105053 .

AMA Style

André Almagro, Paulo Tarso S. Oliveira, Rafael Rosolem, Stefan Hagemann, Carlos A. Nobre. Performance evaluation of Eta/HadGEM2-ES and Eta/MIROC5 precipitation simulations over Brazil. Atmospheric Research. 2020; 244 ():105053.

Chicago/Turabian Style

André Almagro; Paulo Tarso S. Oliveira; Rafael Rosolem; Stefan Hagemann; Carlos A. Nobre. 2020. "Performance evaluation of Eta/HadGEM2-ES and Eta/MIROC5 precipitation simulations over Brazil." Atmospheric Research 244, no. : 105053.

Journal article
Published: 13 April 2020 in International Soil and Water Conservation Research
Reads 0
Downloads 0

The Brazilian Cerrado has been converted to farmland, and there is little evidence that this expansion will decrease, mainly because agriculture is the country's main economic sector. However, the impacts of intense modification of land use and land cover on surface runoff and soil erosion are still poorly understood in this region. Here, we assessed surface runoff and soil loss in a woodland Cerrado area under a former pasture area, which was abandoned and has undergone a natural regeneration process for 7 years (RC). Its results were compared with that found in an undisturbed area of woodland Cerrado (CE), 40-month-old eucalyptus (3.0 × 1.8 m) (EU), and pasture under rotational grazing (PA). The study was conducted on Red Acrisol located in the Brazilian Cerrado. We performed rainfall simulations on a plot of 0.7 m2 and using three constant rainfall intensities of 60, 90, and 120 mm h−1 for 1 h. For each rainfall intensity, we carried out four repetitions using different plots in each treatment, i.e. 12 plots per treatment studied and 48 plots in total. We noted that the soil physical properties were improved in RC and, consequently, water infiltration and soil erosion control; RC presented surface runoff and soil loss different from EU and PA (α = 0.05). The macroporosity and soil bulk density affected surface runoff in RC and PA because the RC was used as pasture and is currently regenerating back to the cerrado vegetation. As the rainfall intensity increased, EU became more similar to PA, which showed the highest surface runoff and soil loss. Our findings indicate that natural regeneration processes (pasture to the cerrado vegetation) tend to improve the soil ecosystem services, improving infiltration and reducing surface runoff and soil erosion.

ACS Style

Karina Dos Santos Falcão; Elói Panachuki; Felipe Das Neves Monteiro; Roniedison Da Silva Menezes; Dulce B.B. Rodrigues; Jullian Souza Sone; Paulo Tarso S. Oliveira. Surface runoff and soil erosion in a natural regeneration area of the Brazilian Cerrado. International Soil and Water Conservation Research 2020, 8, 124 -130.

AMA Style

Karina Dos Santos Falcão, Elói Panachuki, Felipe Das Neves Monteiro, Roniedison Da Silva Menezes, Dulce B.B. Rodrigues, Jullian Souza Sone, Paulo Tarso S. Oliveira. Surface runoff and soil erosion in a natural regeneration area of the Brazilian Cerrado. International Soil and Water Conservation Research. 2020; 8 (2):124-130.

Chicago/Turabian Style

Karina Dos Santos Falcão; Elói Panachuki; Felipe Das Neves Monteiro; Roniedison Da Silva Menezes; Dulce B.B. Rodrigues; Jullian Souza Sone; Paulo Tarso S. Oliveira. 2020. "Surface runoff and soil erosion in a natural regeneration area of the Brazilian Cerrado." International Soil and Water Conservation Research 8, no. 2: 124-130.

Preprint content
Published: 23 March 2020
Reads 0
Downloads 0

We present the Catchments Attributes for Brazil (CABra) dataset. This is the first large-scale dataset for Brazilian catchments and includes data for 1,252 catchments in seven main classes of catchment attributes (CA: streamflow, groundwater, geology, soil, topography, climate, and land-use and land-cover). We have collected and synthetized data from multi-sources (ground stations data, remote sensed data, and gridded data. CABra contains catchments over the six Brazilian biomes: Amazon, Atlantic Forest, Caatinga, Cerrado, Pampa, and Pantanal. We delineated all catchments using the coordinates of each streamflow station provided by the Brazilian Water Agency (ANA, in Portuguese). We only considered stations with more than 10 years of data records and less than 20% of missing data. Catchment areas range from 9 to 4,670,000 km² and the mean daily streamflow varies from 0.006 to 170,271 m³ s-1. We also calculated several hydrological signatures – based on distribution, frequency and duration, and dynamics of daily streamflow – and climate indices. Additionally, this dataset includes  boundary shapefiles, centroids latitude and longitude, and drainage area for each catchment, aside from more than 50 attributes within each CA class. The CABra intends to fill a huge gap of multisource data collection in Brazil. This dataset plays an important role towards a better understanding of the climate-landscape-hydrology related drivers in a country of continental dimensions and heterogeneous landscape characteristics. Moreover, we described the collection and processing methods and discussed the limitations of each of our multiple data sources. Aside from being a potential tool for large-scale studies in hydrology, our extensive dataset is of main importance for the development of high-quality hydrologic studies in Brazil.

ACS Style

Paulo Tarso Oliveira; André Almagro; Frederico Pitaluga; Antônio Meira Neto; Matej Durcik; Peter Troch. CABra: a novel large-scale dataset for Brazilian catchments. 2020, 1 .

AMA Style

Paulo Tarso Oliveira, André Almagro, Frederico Pitaluga, Antônio Meira Neto, Matej Durcik, Peter Troch. CABra: a novel large-scale dataset for Brazilian catchments. . 2020; ():1.

Chicago/Turabian Style

Paulo Tarso Oliveira; André Almagro; Frederico Pitaluga; Antônio Meira Neto; Matej Durcik; Peter Troch. 2020. "CABra: a novel large-scale dataset for Brazilian catchments." , no. : 1.

Preprint content
Published: 23 March 2020
Reads 0
Downloads 0

All land uses provide ecosystem services (ES), which have been depleted due to the lack of soil conservation practices along with the intensive use of land for meeting the water-energy-food nexus demand. The economic incentive is a first step towards attracting farmers’ interest in protecting and conserving ES. Farmers, stakeholders, and decision-makers need to understand the value and importance of watershed services through a straightforward cost-effective analysis of conserving and/or protecting them. Economic feasibility affects the volunteer enrolment in payment for ecosystem services (PES) programmes for adopting soil conservation practices in rural areas; nonetheless, it is still poorly understood regarding investments in ES restoration and preservation. There is very little information on the restoration of water provisioning in rural basins that participated in PES programmes. Additionally, most studies focus on programmes for one specific type of landowner, putting aside the plurality of landowners in the basin. It undermines PES programmes implementation when assessing individual preferences and willingness to pay. Thus, we aim to compare costs and benefits from incentivising soil conservation practices and forest restoration in a rural basin through a cost-benefit analysis and quantitative improvements of water provision and soil erosion control; moreover, we will use hydrological and economic-decision models to asses the uncertainties from the relationship between soil conservation practices and watershed services under climate change. The Guariroba River Basin (36,200 ha), located on the rural side of Campo Grande city ‒ Brazil, currently provides 34% of the drinking water demand in the urban area — once provided about 50% — since converting native Cerrado vegetation of the basin for cattle farming has led to a decrease in water provisioning due to soil degradation and, consequently, reservoir siltation. In 2009, the city hall launched a PES Programme called ‘Manancial Vivo’ (MVP). In this context, it is fundamental to understand how uncertainties in the input data, economic models structure, and parameters estimation are consistently integrated into hydro-economic models. By this, we will assess different hydro-economic scenarios of water availability to understand uncertainties and hydrological trade-offs. We expect to respond to some questions: whether the Brazilian PES programme model is environmentally and economically adequate; how water-food-energy insecurity nexus affects PES policies; and what role PES plays in building resilience to water supply systems and helping people to adapt to climate change effects.

ACS Style

Jullian Sone; Gabriela Gesualdo; Lívia Rosalem; Paulo Oliveira; Edson Wendland. Trade-offs, synergies and economic relationships among ecosystem services. 2020, 1 .

AMA Style

Jullian Sone, Gabriela Gesualdo, Lívia Rosalem, Paulo Oliveira, Edson Wendland. Trade-offs, synergies and economic relationships among ecosystem services. . 2020; ():1.

Chicago/Turabian Style

Jullian Sone; Gabriela Gesualdo; Lívia Rosalem; Paulo Oliveira; Edson Wendland. 2020. "Trade-offs, synergies and economic relationships among ecosystem services." , no. : 1.

Article
Published: 30 January 2020
Reads 0
Downloads 0

Direct-runoff and baseflow are the two primary components of total streamflow and their accurate estimation is indispensable for a variety of hydrologic applications. While direct runoff is the quick response stemming from surface and shallow subsurface flow paths, and is often associated with floods, baseflow represents the groundwater contribution to streams and is crucial for environmental flow regulations, groundwater recharge, and water supply, among others. L'vovich (1979) proposed a two-step water balance where precipitation is divided into direct runoff and catchment wetting followed by the disaggregation of the latter into baseflow and evapotranspiration. Although arguably a better approach than the traditional Budyko framework, the physical controls of direct runoff and baseflow are still not fully understood. Here, we investigate the role of the aridity index (ratio between mean annual potential evapotranspiration and precipitation) in controlling the long-term (mean-annual) fluxes of direct runoff and baseflow. We present an analytical solution beginning with similar assumptions as proposed by Budyko (1974), leading to two complementary expressions for the two fluxes. The aridity index explained 83% and 91% of variability in direct runoff and baseflow from 499 catchments within the continental US, and our formulations were able to reproduce the patterns of water balance proposed by L'vovich (1979) at the mean annual timescale. Our approach allows for the prediction of baseflow and direct runoff at ungauged basins and can be used to further understand how climate and landscape controls the terrestrial water balance at mean annual timescales.

ACS Style

Antonio Alves Meira Neto; Tirthankar Roy; Paulo Tarso Sanches Oliveira; Peter A. Troch. An aridity index-based formulation of streamflow components. 2020, 1 .

AMA Style

Antonio Alves Meira Neto, Tirthankar Roy, Paulo Tarso Sanches Oliveira, Peter A. Troch. An aridity index-based formulation of streamflow components. . 2020; ():1.

Chicago/Turabian Style

Antonio Alves Meira Neto; Tirthankar Roy; Paulo Tarso Sanches Oliveira; Peter A. Troch. 2020. "An aridity index-based formulation of streamflow components." , no. : 1.

Article
Published: 29 January 2020
Reads 0
Downloads 0

This study discusses the role of the aridity index in controlling the long-term fluxes of direct (Qd) and baseflow (Qd). Here we present an analytical derivation starting from similar assumptions as the one presented in the original work of Budyko that leads to two simple expressions for the control of the aridity index on Qb and Qd. These two analytical equations can be combined into a single expression with the same properties as the original Budyko equation. Our study provides a method for predicting long term baseflow and direct runoff for poorly gaged basins as well as permit the derivation of sensitivity equations for the assessment of the impact of these fluxes with respect to changes in aridity index.

ACS Style

Antonio Alves Meira NetoiD; Tirthankar RoyiD; Paulo Tarso OliveiraiD; Peter Troch. A Budyko-type formulation for baseflow and direct runoff. 2020, 1 .

AMA Style

Antonio Alves Meira NetoiD, Tirthankar RoyiD, Paulo Tarso OliveiraiD, Peter Troch. A Budyko-type formulation for baseflow and direct runoff. . 2020; ():1.

Chicago/Turabian Style

Antonio Alves Meira NetoiD; Tirthankar RoyiD; Paulo Tarso OliveiraiD; Peter Troch. 2020. "A Budyko-type formulation for baseflow and direct runoff." , no. : 1.

Journal article
Published: 20 January 2020 in Journal of Environmental Management
Reads 0
Downloads 0

Considering scenarios of future changes in land use have the potential to support policy-makers in drafting environmental laws to reconcile the demands of multiple land uses. The Pantanal, one of the largest wetlands in the world, has been undergoing rapid land use changes, and does not yet have any integrated environmental legislation on Legal Reserve for entire region (LR - minimum percentage of native vegetation required within private properties). The aim of this paper was to generate future vegetation loss scenarios for the Pantanal based on four LR values: (i) BAU: Business as usual, which considers existing laws: Native Vegetation Protection Law and State Decree; (ii) LRE: LR elimination owing to a bill recently proposed; (iii) LR50: which considers the bill proposing 50% of LR for the Pantanal; and (iv) LR80: our proposed levels of 80% of LR for the lowlands and 35% for the plateau (following values in the Amazon). Based on native vegetation loss from each scenario, we estimated the soil loss and sediment yield to rivers. Our results show that LRE would increase native vegetation loss in the Pantanal by as much as 139% when compared to the BAU, whereas increasing LR levels would reduce conversion values by 29% (LR80). Elimination of the LR would increase soil erosion and sediment production by up to 7% and 10%, respectively, compared to BAU. Based on native vegetation loss from each scenario, we estimated the soil loss and sediment yield to rivers with our data showing more than 90% of the sediment transported to the lowland originating from the plateau. The LR80 indicates a reduction in soil nutrient replacement costs of 10% compared to BAU, while in the LR50 these costs decrease by 1.5%, and in the LRE would increase of 8%. Our results show that abolishing current protections would have substantial impacts on avulsion processes, on several economic activities (tourism, fishery, cattle raising, etc.) and negative impacts for biodiversity conservation and would bring losses to agriculture in the Pantanal. Hence, our study brings clearly evidence of LR importance and need to expand it in this sensitive wetland.

ACS Style

Angélica Guerra; Paulo Tarso Sanches de Oliveira; Fábio De Oliveira Roque; Isabel M.D. Rosa; José Manuel Ochoa-Quintero; Rafael Dettogni Guariento; Carina Barbosa Colman; Viviane Dib; Verônica Maioli; Bernardo Strassburg; Letícia Couto Garcia. The importance of Legal Reserves for protecting the Pantanal biome and preventing agricultural losses. Journal of Environmental Management 2020, 260, 110128 .

AMA Style

Angélica Guerra, Paulo Tarso Sanches de Oliveira, Fábio De Oliveira Roque, Isabel M.D. Rosa, José Manuel Ochoa-Quintero, Rafael Dettogni Guariento, Carina Barbosa Colman, Viviane Dib, Verônica Maioli, Bernardo Strassburg, Letícia Couto Garcia. The importance of Legal Reserves for protecting the Pantanal biome and preventing agricultural losses. Journal of Environmental Management. 2020; 260 ():110128.

Chicago/Turabian Style

Angélica Guerra; Paulo Tarso Sanches de Oliveira; Fábio De Oliveira Roque; Isabel M.D. Rosa; José Manuel Ochoa-Quintero; Rafael Dettogni Guariento; Carina Barbosa Colman; Viviane Dib; Verônica Maioli; Bernardo Strassburg; Letícia Couto Garcia. 2020. "The importance of Legal Reserves for protecting the Pantanal biome and preventing agricultural losses." Journal of Environmental Management 260, no. : 110128.

Journal article
Published: 01 January 2020 in RBRH
Reads 0
Downloads 0

In this paper we synthesize the special sessions of the XXIII Brazilian Water Resources Symposium 2019 in order to understand the major advances and challenges in the water sciences in Brazil. We analyzed more than 250 papers and presentations of 16 special sessions covering topics of Climate Variability and Change, Disasters, Modeling, Large Scale Hydrology, Remote Sensing, Education, and Water Resources Management. This exercise highlighted the unique diversity of natural and human water features in Brazil, that offers a great opportunity for understanding coupled hydrological and societal systems. Most contributions were related to methods and the quantification of water phenomena, therefore, there is a clear necessity for fostering more research on phenomena comprehension. There is a vast network of co-authorship among institutions but mostly from academia and with some degree of regional fragmentation. The ABRhidro community now has the challenge to enhance its collaboration network, the culture of synthesis analysis, and to build a common agenda for water resources research. It is also time for us to be aligned with the international water science community and to use our experiences to actively contribute to the tackling of global water issues.

ACS Style

Rodrigo Cauduro Dias de Paiva; Pedro Luiz Borges Chaffe; Jamil Alexandre Ayach Anache; Andrea Sousa Fontes; Ligia Maria Nascimento de Araujo; Anderson Nascimento de Araujo; Daniel Bartiko; Tobias Bleninger; Pablo Borges de Amorim; Diogo Costa Buarque; Tomas Carlotto; Walter Collischonn; Daniel Henrique Marco Detzel; Fernando Mainardi Fan; Rosa Maria Formiga-Johnsson; Masato Kobiyama; Michael Mannich; Guilherme Marques; Gean Paulo Michel; Debora Yumi de Oliveira; Paulo Tarso Sanches de Oliveira; Adilson Pinheiro; Anderson Ruhoff; Vinicius Alencar Siqueira; Rutineia Tassi; Franciele Zanandrea. Advances and challenges in the water sciences in Brazil: a community synthesis of the XXIII Brazilian Water Resources Symposium. RBRH 2020, 25, 1 .

AMA Style

Rodrigo Cauduro Dias de Paiva, Pedro Luiz Borges Chaffe, Jamil Alexandre Ayach Anache, Andrea Sousa Fontes, Ligia Maria Nascimento de Araujo, Anderson Nascimento de Araujo, Daniel Bartiko, Tobias Bleninger, Pablo Borges de Amorim, Diogo Costa Buarque, Tomas Carlotto, Walter Collischonn, Daniel Henrique Marco Detzel, Fernando Mainardi Fan, Rosa Maria Formiga-Johnsson, Masato Kobiyama, Michael Mannich, Guilherme Marques, Gean Paulo Michel, Debora Yumi de Oliveira, Paulo Tarso Sanches de Oliveira, Adilson Pinheiro, Anderson Ruhoff, Vinicius Alencar Siqueira, Rutineia Tassi, Franciele Zanandrea. Advances and challenges in the water sciences in Brazil: a community synthesis of the XXIII Brazilian Water Resources Symposium. RBRH. 2020; 25 ():1.

Chicago/Turabian Style

Rodrigo Cauduro Dias de Paiva; Pedro Luiz Borges Chaffe; Jamil Alexandre Ayach Anache; Andrea Sousa Fontes; Ligia Maria Nascimento de Araujo; Anderson Nascimento de Araujo; Daniel Bartiko; Tobias Bleninger; Pablo Borges de Amorim; Diogo Costa Buarque; Tomas Carlotto; Walter Collischonn; Daniel Henrique Marco Detzel; Fernando Mainardi Fan; Rosa Maria Formiga-Johnsson; Masato Kobiyama; Michael Mannich; Guilherme Marques; Gean Paulo Michel; Debora Yumi de Oliveira; Paulo Tarso Sanches de Oliveira; Adilson Pinheiro; Anderson Ruhoff; Vinicius Alencar Siqueira; Rutineia Tassi; Franciele Zanandrea. 2020. "Advances and challenges in the water sciences in Brazil: a community synthesis of the XXIII Brazilian Water Resources Symposium." RBRH 25, no. : 1.

Journal article
Published: 10 December 2019 in Sustainability
Reads 0
Downloads 0

The Pantanal biome integrates the lowlands of the Upper Paraguay Basin (UPB), which is hydrologically connected to the biomes of the Cerrado and Amazon (the highlands of the UPB). The effects of recent land-cover and land-use (LCLU) changes in the highlands, combined with climate change, are still poorly understood in this region. Here, we investigate the effects of soil erosion in the Brazilian Pantanal under climate and LCLU changes by combining different scenarios of projected rainfall erosivity and land-cover management. We compute the average annual soil erosion for the baseline (2012) and projected scenarios for 2020, 2035, and 2050. For the worst scenario, we noted an increase in soil loss of up to 100% from 2012 to 2050, associated with cropland expansion in some parts of the highlands. Furthermore, for the same period, our results indicated an increase of 20 to 40% in soil loss in parts of the Pantanal biome, which was associated with farmland increase (mainly for livestock) in the lowlands. Therefore, to ensure water, food, energy, and ecosystem service security over the next decades in the whole UPB, robust and comprehensive planning measures need to be developed, especially for the most impacted areas found in our study.

ACS Style

Carina Colman; Paulo Oliveira; André Almagro; Britaldo Soares-Filho; Dulce Rodrigues. Effects of Climate and Land-Cover Changes on Soil Erosion in Brazilian Pantanal. Sustainability 2019, 11, 7053 .

AMA Style

Carina Colman, Paulo Oliveira, André Almagro, Britaldo Soares-Filho, Dulce Rodrigues. Effects of Climate and Land-Cover Changes on Soil Erosion in Brazilian Pantanal. Sustainability. 2019; 11 (24):7053.

Chicago/Turabian Style

Carina Colman; Paulo Oliveira; André Almagro; Britaldo Soares-Filho; Dulce Rodrigues. 2019. "Effects of Climate and Land-Cover Changes on Soil Erosion in Brazilian Pantanal." Sustainability 11, no. 24: 7053.

Journal article
Published: 04 December 2019 in Hydrology and Earth System Sciences
Reads 0
Downloads 0

Climate change affects the global water cycle and has the potential to alter water availability for food–energy–water production, and for ecosystems services, on regional and local scales. An understanding of these effects is crucial for assessing future water availability, and for the development of sustainable management plans. Here, we investigate the influence of anticipated climate change on water security in the Jaguari Basin, which is the main source of freshwater for 9 million people in the São Paulo metropolitan region (SPMR). First, we calibrate and evaluate a hydrological model using daily observed data, obtaining satisfactory coefficient of determination and Kling–Gupta efficiency values for both periods. To represent possible climate change scenarios up to 2095, we consider two International Panel on Climate Change (IPCC) Representative Concentration Pathways (RCP4.5 and RCP8.5) and use an ensemble of future projections generated by 17 general circulation models (GCMs). These data were used to drive the hydrological model to generate projected scenarios of streamflow. We then used indicators of water scarcity and vulnerability to carry out a quantitative analysis of provision probability. Our results indicate that streamflow can be expected to exhibit increased interannual variability, significant increases in flow rate between January and March, and a 2-month extension of the hydrological dry season (currently June to September) until November. The latter includes a more than a 35 % reduction in streamflow during September through November (with a > 50 % reduction in October). Our findings indicate an increased risk of floods and droughts accompanied by an expansion of the basin critical period, and our analysis of the water security indices identifies October and November as the most vulnerable months. Overall, our analysis exposes the fragility of water security in the São Paulo metropolitan region, and provides valuable technical and scientific information that can be used to guide regional plans and strategies to cope with potential future water scarcity.

ACS Style

Gabriela Gesualdo; Paulo Tarso Oliveira; Dulce Buchala Bicca Rodrigues; Hoshin Vijai Gupta. Assessing water security in the São Paulo metropolitan region under projected climate change. Hydrology and Earth System Sciences 2019, 23, 4955 -4968.

AMA Style

Gabriela Gesualdo, Paulo Tarso Oliveira, Dulce Buchala Bicca Rodrigues, Hoshin Vijai Gupta. Assessing water security in the São Paulo metropolitan region under projected climate change. Hydrology and Earth System Sciences. 2019; 23 (12):4955-4968.

Chicago/Turabian Style

Gabriela Gesualdo; Paulo Tarso Oliveira; Dulce Buchala Bicca Rodrigues; Hoshin Vijai Gupta. 2019. "Assessing water security in the São Paulo metropolitan region under projected climate change." Hydrology and Earth System Sciences 23, no. 12: 4955-4968.