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Prof. Dr. Weili Duan
Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences

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0 Climate Change
0 Regional Development
0 Water Resources
0 Extreme events
0 water environment

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Journal article
Published: 22 July 2021 in Scientific Reports
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Extreme precipitation events exhibit an increasing trend for both the frequency and magnitude on global and regional scales and it has already proven the impact of man-made global warming on the extreme precipitation amplification. Based on the observed datasets and global climate model (GCM) output, this study has evaluated the impact from anthropogenic forcing on the trend and temporal non-uniformity (i.e. increase in unevenness or disparity) of the precipitation amounts (PRCPTOT), extremes (R95p and RX5day) and intensity (SDII) in Central Asia (CA) from 1961 to 2005. Results indicate that radiative forcing changes, mainly driven by human activities, have significantly augmented the extreme precipitation indices in CA. The median trend with the influence of anthropogenic activities for the PRCPTOT, SDII, R95p and RX5day amounted to 2.19 mm/decade, 0.019 mm/decade, 1.39 mm/decade and 0.21 mm/decade during the study period, respectively. A statistically insignificant decrease in non-uniformity was noticed for the PRCPTOT, SDII and RX5day in Central CA (CCA) and Western CA (WCA), while Eastern CA (ECA) was the only region with a statistically significant increase in non-uniformity of the PRCPTOT, SDII, R95p and RX5day by 4.22%, 3.98%, 3.73% and 3.97%, respectively from 1961 to 2005 due to anthropogenic forcing. These results reflect the difference in various regions regarding the impact of anthropogenic forcing on the non-uniformity of extreme precipitation events in CA, which might help to fully understand the role of anthropogenic forcing in the changes of the precipitation extremes in CA and contribute to the development of water resource management strategies.

ACS Style

Shan Zou; Jilili Abuduwaili; Weili Duan; Jianli Ding; Philippe De Maeyer; Tim Van De Voorde; Long Ma. Attribution of changes in the trend and temporal non-uniformity of extreme precipitation events in Central Asia. Scientific Reports 2021, 11, 1 .

AMA Style

Shan Zou, Jilili Abuduwaili, Weili Duan, Jianli Ding, Philippe De Maeyer, Tim Van De Voorde, Long Ma. Attribution of changes in the trend and temporal non-uniformity of extreme precipitation events in Central Asia. Scientific Reports. 2021; 11 ():1.

Chicago/Turabian Style

Shan Zou; Jilili Abuduwaili; Weili Duan; Jianli Ding; Philippe De Maeyer; Tim Van De Voorde; Long Ma. 2021. "Attribution of changes in the trend and temporal non-uniformity of extreme precipitation events in Central Asia." Scientific Reports 11, no. : 1.

Journal article
Published: 18 April 2021 in Science of The Total Environment
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A systematic understanding of the dynamics of surface water resources and terrestrial water storage (TWS) is extremely important for human survival in Central Asia (CA) and maintaining the balance of regional ecosystems. Although several remote sensing products have been used to map surface water, the spatial resolution of some of them (hundreds of meters) is not sufficient to identify small surface water bodies, with monitoring data only being available for a few years or less. Thus, long-term continuous monitoring of surface water dynamics has not yet been achieved. To address this, we used all available Landsat images and the adjacent-years interpolation method to describe the dynamics of surface water in CA with a 30-m spatial resolution during 1990–2019. Subsequently, based on the multiple stepwise regression model, the climatic changes and human activity drivers affecting the surface water were systematically assessed. The permanent surface water areas (PSWA) of downstream countries with water scarcity decreased over time. The PSWA of Kazakhstan continues to decline at a maximum rate of 1189 km2/a. Additionally, human activities represented by population and reservoir areas are the dominant drivers affecting surface water resources in CA. The relationship between TWS and PSWA in CA and the constraints on social and economic development provided by the available water resources are discussed. The findings demonstrate that more than one-third of the croplands in CA are suffering from declining SWAs and TWS. The water crisis in CA has intensified, and the spatial mismatch between water and land resources is expected to remain one of the biggest challenges for future social and economic development in CA. Our dataset and findings provide high-precision surface water dynamics data that could be valuable for mitigating the water crisis in CA and provide a current scientific reference for achieving the United Nations' Sustainable Development Goals.

ACS Style

Wenjing Huang; Weili Duan; Yaning Chen. Rapidly declining surface and terrestrial water resources in Central Asia driven by socio-economic and climatic changes. Science of The Total Environment 2021, 784, 147193 .

AMA Style

Wenjing Huang, Weili Duan, Yaning Chen. Rapidly declining surface and terrestrial water resources in Central Asia driven by socio-economic and climatic changes. Science of The Total Environment. 2021; 784 ():147193.

Chicago/Turabian Style

Wenjing Huang; Weili Duan; Yaning Chen. 2021. "Rapidly declining surface and terrestrial water resources in Central Asia driven by socio-economic and climatic changes." Science of The Total Environment 784, no. : 147193.

Editorial
Published: 13 March 2021 in Remote Sensing
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Water is undoubtedly the most valuable resource of human society and an essential component of the ecosystem

ACS Style

Weili Duan; Shreedhar Maskey; Pedro Chaffe; Pingping Luo; Bin He; Yiping Wu; Jingming Hou. Recent Advancement in Remote Sensing Technology for Hydrology Analysis and Water Resources Management. Remote Sensing 2021, 13, 1097 .

AMA Style

Weili Duan, Shreedhar Maskey, Pedro Chaffe, Pingping Luo, Bin He, Yiping Wu, Jingming Hou. Recent Advancement in Remote Sensing Technology for Hydrology Analysis and Water Resources Management. Remote Sensing. 2021; 13 (6):1097.

Chicago/Turabian Style

Weili Duan; Shreedhar Maskey; Pedro Chaffe; Pingping Luo; Bin He; Yiping Wu; Jingming Hou. 2021. "Recent Advancement in Remote Sensing Technology for Hydrology Analysis and Water Resources Management." Remote Sensing 13, no. 6: 1097.

Review article
Published: 08 March 2021 in Ecological Indicators
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Advances in water resources research in China has blossomed in recent decades. Although historically many Chinese scientific publications had been limited to regional, language-specific outlets, the more recent emergence of Chinese scholarship in water resources sustainability and engineering suggests that broader recognition within the scientific community is needed. In this study, we explore the recent evolution of Chinese environmental flows research through the bibliometric analysis of two prominent databases. This paper highlights trends in environmental flow publication rates, emerging areas of research, and citation networks for prominent authors in the Chinese context as compared to the global network of environmental flows research. Results indicate that China’s environmental flows research developed rapidly over the past two decades (2005–2019) and that Chinese authors are among the most productive in the field (60% of the top 20 authors). However, based on the number of citations, few Chinese articles are among the most highly cited (5 out of 800). The field of environmental flows research has identified the need to minimize parochial boundaries, and this analysis suggests a rich, yet untapped, literature to promote scientific integration. Differences in journal selection, keyword choice, and lesser-known authors to readers outside of China were identified as potential limitations to broader global integration. This approach to systematic bibliometric analysis can be used to identify prominent authors and important studies such that new ideas in environmental flows research can flow across continental boundaries, from East to West, to accelerate global understanding of prevailing trends and best practices in river management

ACS Style

Zhuo Hao; Anna M. Rallings; Vicky Espinoza; Pingping Luo; Weili Duan; Qidong Peng; Yang Gao; Joshua H. Viers. Flowing from East to West: A bibliometric analysis of recent advances in environmental flow science in China. Ecological Indicators 2021, 125, 107358 .

AMA Style

Zhuo Hao, Anna M. Rallings, Vicky Espinoza, Pingping Luo, Weili Duan, Qidong Peng, Yang Gao, Joshua H. Viers. Flowing from East to West: A bibliometric analysis of recent advances in environmental flow science in China. Ecological Indicators. 2021; 125 ():107358.

Chicago/Turabian Style

Zhuo Hao; Anna M. Rallings; Vicky Espinoza; Pingping Luo; Weili Duan; Qidong Peng; Yang Gao; Joshua H. Viers. 2021. "Flowing from East to West: A bibliometric analysis of recent advances in environmental flow science in China." Ecological Indicators 125, no. : 107358.

Journal article
Published: 28 December 2020 in Journal of Hydrology
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Climate change and urbanization are jointly impacting on the open surface water area of the Irtysh River in the Arctic Circle. This will affect the economic development and ecology of the countries in the Irtysh River basin and the hydrological cycle of the Arctic Circle. However, the long-term changes of open surface water bodies in the Irtysh River Basin have not been well quantified. To address this, 89,000 Landsat 4,5,7 and 8 images from 1990 to 2019 were used to extract the surface water body area of the Irtysh River Basin and integrated the assessment of open surface water area dynamics. The geographical detector model was used to quantify the factors that affect the area of open surface water bodies. The results show that the total open surface water area of the Irtysh River Basin is an increasing trend over the past 30 years, with a total increase of 88,790 km2, of which the permanent water body area decreased by 20,800 km2 and the seasonal water body area increased by 109,590 km2. In addition, the factors that contributed the most to the dynamics of the surface water area in the Irtysh River Basin were evapotranspiration, precipitation and snow water equivalent, whose contribution rates could reach 72%, 66% and 61%, respectively, with important interactions between factors. This suggests that monitoring dynamics in surface water area requires comprehensive consideration of all factors. Results obtained from this study offer the latest information for fully understanding the spatio-temporal variation of surface water body area and its driving factors in this basin, which could be used to effectively manage water resources for possibly reducing international water disputes and protecting the fragile ecology in the Arctic.

ACS Style

Wenjing Huang; Weili Duan; Daniel Nover; Netrananda Sahu; Yaning Chen. An integrated assessment of surface water dynamics in the Irtysh River Basin during 1990–2019 and exploratory factor analyses. Journal of Hydrology 2020, 593, 125905 .

AMA Style

Wenjing Huang, Weili Duan, Daniel Nover, Netrananda Sahu, Yaning Chen. An integrated assessment of surface water dynamics in the Irtysh River Basin during 1990–2019 and exploratory factor analyses. Journal of Hydrology. 2020; 593 ():125905.

Chicago/Turabian Style

Wenjing Huang; Weili Duan; Daniel Nover; Netrananda Sahu; Yaning Chen. 2020. "An integrated assessment of surface water dynamics in the Irtysh River Basin during 1990–2019 and exploratory factor analyses." Journal of Hydrology 593, no. : 125905.

Journal article
Published: 13 November 2020 in Atmosphere
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In this paper, the rainfall trend of the West Coast Plain and Hill Agro-Climatic Region is analyzed for 117 years (1901–2017). This region is a globally recognized biodiversity hotspot and known for one of the highest rainfall receiving regions in India. Rainfall grid dataset is used for the analysis of rainfall trends on monthly, seasonal, and decadal time scales. Modified Mann–Kendall’s test, Linear Regression, Innovative Trend Analysis, Sen’s Slope test, Weibull’s Recurrence Interval, Pearson’s Coefficient of Skewness, Consecutive Disparity Index, Kurtosis, and some other important statistical techniques are employed for trend analysis. Results indicate that the rainfall trend is significant in January, July, August, September as well as the Winter season. Among all the significant trends, January and July showed a decreasing rainfall trend. July has the highest contribution (30%) among all the obtained monotonic trend to annual rainfall and coincidentally has the highest trend magnitude. August and September months with a combined contribution of 30% to annual rainfall, show an increasing monotonic trend with high magnitude whereas Winter season shows a monotonic decreasing rainfall trend with comparatively low magnitudes. Decadal analysis along with the study of recurrence interval of excess and deficit years helps to understand the decadal rhythm of trend and the magnitude of extreme monthly and seasonal events. Skewness reveals that rainfall dataset of all the periodic results is right-skewed and the recurrence interval also supports the skewness results. Sharply decreasing rainfall in July and rising rainfall in August and September is predictive of the impact on agriculture, biodiversity and indicates the rainfall regime shift in the region.

ACS Style

Atul Saini; Netrananda Sahu; Pankaj Kumar; Sridhara Nayak; Weili Duan; Ram Avtar; Swadhin Behera. Advanced Rainfall Trend Analysis of 117 Years over West Coast Plain and Hill Agro-Climatic Region of India. Atmosphere 2020, 11, 1225 .

AMA Style

Atul Saini, Netrananda Sahu, Pankaj Kumar, Sridhara Nayak, Weili Duan, Ram Avtar, Swadhin Behera. Advanced Rainfall Trend Analysis of 117 Years over West Coast Plain and Hill Agro-Climatic Region of India. Atmosphere. 2020; 11 (11):1225.

Chicago/Turabian Style

Atul Saini; Netrananda Sahu; Pankaj Kumar; Sridhara Nayak; Weili Duan; Ram Avtar; Swadhin Behera. 2020. "Advanced Rainfall Trend Analysis of 117 Years over West Coast Plain and Hill Agro-Climatic Region of India." Atmosphere 11, no. 11: 1225.

Journal article
Published: 28 August 2020 in Sustainability
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The impact of Indo-Pacific climate variability in the South Asian region is very pronounced and their impact on agriculture is very important for the Indian subcontinent. In this study, rice productivity, climatic factors (Rainfall, Temperature and Soil Moisture) and associated major Indo-Pacific climate indices in Bihar were investigated. Bihar is one of the major rice-producing states of India and the role of climate variability and prevailing climate indices in six events (between 1991–2014) with severer than −10% rice productivity are analyzed. The Five-year moving average, Pearson’s Product Moment Correlation, Partial Correlation, Linear Regression Model, Mann Kendall Test, Sen’s Slope and some other important statistical techniques were used to understand the association between climatic variables and rice productivity. Pearson’s Product Moment Correlation provided an overview of the significant correlation between climate indices and rice productivity. Whereas, Partial Correlation provided the most refined results on it and among all the climate indices, Niño 3, Ocean Niño Index and Southern Oscillation Index are found highly associated with years having severer than −10% decline in rice productivity. Rainfall, temperature and soil moisture anomalies are analyzed to observe the importance of climate factors in rice productivity. Along with the lack of rainfall, lack of soil moisture and persistent above normal temperature (especially maximum temperature) are found to be the important factors in cases of severe loss in rice productivity. Observation of the dynamics of ocean-atmosphere coupling through the composite map shows the Pacific warming signals during the event years. The analysis revealed a negative (positive) correlation of rice productivity with the Niño 3 and Ocean Niño Index (Southern Oscillation Index).

ACS Style

Netrananda Sahu; Atul Saini; Swadhin Behera; Takahiro Sayama; Sridhara Nayak; Limonlisa Sahu; Weili Duan; Ram Avtar; Masafumi Yamada; R. Singh; Kaoru Takara. Impact of Indo-Pacific Climate Variability on Rice Productivity in Bihar, India. Sustainability 2020, 12, 7023 .

AMA Style

Netrananda Sahu, Atul Saini, Swadhin Behera, Takahiro Sayama, Sridhara Nayak, Limonlisa Sahu, Weili Duan, Ram Avtar, Masafumi Yamada, R. Singh, Kaoru Takara. Impact of Indo-Pacific Climate Variability on Rice Productivity in Bihar, India. Sustainability. 2020; 12 (17):7023.

Chicago/Turabian Style

Netrananda Sahu; Atul Saini; Swadhin Behera; Takahiro Sayama; Sridhara Nayak; Limonlisa Sahu; Weili Duan; Ram Avtar; Masafumi Yamada; R. Singh; Kaoru Takara. 2020. "Impact of Indo-Pacific Climate Variability on Rice Productivity in Bihar, India." Sustainability 12, no. 17: 7023.

Journal article
Published: 09 July 2020 in Water
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The potential impact of climate variability on the hydrological regime in the Mahanadi river basin is of great importance for sustainable water resources management. The impact of climate variability on streamflow is analyzed in this study. The impact of climate variability modes on extreme events of Mahanadi basin during June, July, and August (JJA), and September, October, and November (SON) seasons were analyzed, with daily streamflow data of four gauge stations for 34 years from 1980 to 2013 found to be associated with the sea surface temperature variations over Indo-Pacific oceans and Indian monsoon. Extreme events are identified based on their persistent flow for six days or more, where selection of the stations was based on the fact that there was no artificially regulated streamflow in any of the stations. Adequate scientific analysis was done to link the streamflow variability with the climate variability and very significant correlation was found with Indian Ocean Dipole (IOD), El Nino Southern Oscillation (ENSO), El Nino Modoki Index (EMI), and Indian monsoon. Agriculture covers major portion of the basin; hence, the streamflow is very much essential for agriculture as well as population depending on it. Any disturbances in the general flow of the river has subjected an adverse impact on the inhabitants’ livelihood. While analyzing the correlation values, it was found that all stations displayed a significant positive correlation with Indian Monsoon. The respective correlation values were 0.53, 0.38, 0.44, and 0.38 for Andhiyarkore, Baronda, Rajim, and Kesinga during JJA season. Again in the case of stepwise regression analysis, Monsoon Index for the June, July, and August (MI-JJA) season (0.537 for Andhiyarkore) plays significant role in determining streamflow of Mahanadi basin during the JJA season and Monsoon Index for July, August, and September (MI-JAS) season (0.410 for Baronda) has a strong effect in affecting streamflow of Mahanadi during the SON season. Flood frequency analysis with Weibull’s plotting position method indicates future floods in the Mahanadi river basin in JJA season.

ACS Style

Netrananda Sahu; Arpita Panda; Sridhara Nayak; Atul Saini; Manoranjan Mishra; Takahiro Sayama; Limonlisa Sahu; Weili Duan; Ram Avtar; Swadhin Behera. Impact of Indo-Pacific Climate Variability on High Streamflow Events in Mahanadi River Basin, India. Water 2020, 12, 1952 .

AMA Style

Netrananda Sahu, Arpita Panda, Sridhara Nayak, Atul Saini, Manoranjan Mishra, Takahiro Sayama, Limonlisa Sahu, Weili Duan, Ram Avtar, Swadhin Behera. Impact of Indo-Pacific Climate Variability on High Streamflow Events in Mahanadi River Basin, India. Water. 2020; 12 (7):1952.

Chicago/Turabian Style

Netrananda Sahu; Arpita Panda; Sridhara Nayak; Atul Saini; Manoranjan Mishra; Takahiro Sayama; Limonlisa Sahu; Weili Duan; Ram Avtar; Swadhin Behera. 2020. "Impact of Indo-Pacific Climate Variability on High Streamflow Events in Mahanadi River Basin, India." Water 12, no. 7: 1952.

Chapter
Published: 31 March 2020 in Impacts of Climate and Human Activities on Water Resources and Quality
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Changes in extreme weather and climate extremes have a major negative impact on the natural environment and human society and are one of the most serious challenges to society in addressing climate change (2008).

ACS Style

Weili Duan; Kaoru Takara. Assessment of Precipitation Amounts and Climate Extremes in Japan. Impacts of Climate and Human Activities on Water Resources and Quality 2020, 73 -96.

AMA Style

Weili Duan, Kaoru Takara. Assessment of Precipitation Amounts and Climate Extremes in Japan. Impacts of Climate and Human Activities on Water Resources and Quality. 2020; ():73-96.

Chicago/Turabian Style

Weili Duan; Kaoru Takara. 2020. "Assessment of Precipitation Amounts and Climate Extremes in Japan." Impacts of Climate and Human Activities on Water Resources and Quality , no. : 73-96.

Chapter
Published: 31 March 2020 in Impacts of Climate and Human Activities on Water Resources and Quality
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Water, land, and energy resources are critical to food security and ultimately to sustainable socio-economic development (Ellabban et al. 2014; Liu et al. 2018; Mohtar et al. 2019). Globally, water withdrawals and water use for food production account for 70 and 90% of total water withdrawals, respectively, (AQUASTAT 2016) and about 10% accounted for energy production and power generation in 2014 (IEA 2016).

ACS Style

Weili Duan; Kaoru Takara. The Aral Sea Basin Crisis and Future Water–Climate–Food Nexus in Turkmenistan. Impacts of Climate and Human Activities on Water Resources and Quality 2020, 161 -183.

AMA Style

Weili Duan, Kaoru Takara. The Aral Sea Basin Crisis and Future Water–Climate–Food Nexus in Turkmenistan. Impacts of Climate and Human Activities on Water Resources and Quality. 2020; ():161-183.

Chicago/Turabian Style

Weili Duan; Kaoru Takara. 2020. "The Aral Sea Basin Crisis and Future Water–Climate–Food Nexus in Turkmenistan." Impacts of Climate and Human Activities on Water Resources and Quality , no. : 161-183.

Chapter
Published: 31 March 2020 in Impacts of Climate and Human Activities on Water Resources and Quality
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In recent decades, extreme precipitation events have increased in frequency and magnitude over the world under climate change, causing more water-related disasters such as floods, droughts, tropical cyclones, landslides, and tsunami (Amarnath et al. in Global trends in water-related disasters using publicly available database for hazard and risk assessment, 2017; Dai in Nat Clim Chang 3:52–58, 2013; Milly et al. in Nature 415:514–517, 2002; Trenberth et al. in Nat Clim Chang 4:17–22, 2014).

ACS Style

Weili Duan; Kaoru Takara. Extreme Precipitation Events, Floods, and Associated Socio-Economic Damages in China in Recent Decades. Impacts of Climate and Human Activities on Water Resources and Quality 2020, 11 -29.

AMA Style

Weili Duan, Kaoru Takara. Extreme Precipitation Events, Floods, and Associated Socio-Economic Damages in China in Recent Decades. Impacts of Climate and Human Activities on Water Resources and Quality. 2020; ():11-29.

Chicago/Turabian Style

Weili Duan; Kaoru Takara. 2020. "Extreme Precipitation Events, Floods, and Associated Socio-Economic Damages in China in Recent Decades." Impacts of Climate and Human Activities on Water Resources and Quality , no. : 11-29.

Chapter
Published: 31 March 2020 in Impacts of Climate and Human Activities on Water Resources and Quality
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The importance of surface water quality in controlling the health of aquatic ecosystems, affecting drinking water resources, and human health is increasingly recognized. Nutrients (mainly nitrogen and phosphorus) are essential for the life of animals and plants, but high concentrations cause many ecological problems (Carpenter et al. 1998; Li et al. 2011; Smith 1982; Sprague and Lorenz 2009).

ACS Style

Weili Duan; Kaoru Takara. Estimation of Nutrient and Suspended Sediment Loads in the Ishikari River. Impacts of Climate and Human Activities on Water Resources and Quality 2020, 127 -159.

AMA Style

Weili Duan, Kaoru Takara. Estimation of Nutrient and Suspended Sediment Loads in the Ishikari River. Impacts of Climate and Human Activities on Water Resources and Quality. 2020; ():127-159.

Chicago/Turabian Style

Weili Duan; Kaoru Takara. 2020. "Estimation of Nutrient and Suspended Sediment Loads in the Ishikari River." Impacts of Climate and Human Activities on Water Resources and Quality , no. : 127-159.

Chapter
Published: 31 March 2020 in Impacts of Climate and Human Activities on Water Resources and Quality
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Water scarcity is the lack of freshwater resources to meet the ever-increasing demand for water, which has been the focus of increasing international, national, and local concern and debate.

ACS Style

Weili Duan; Kaoru Takara. Changes of Water Quality in the Yangtze River Basin. Impacts of Climate and Human Activities on Water Resources and Quality 2020, 31 -55.

AMA Style

Weili Duan, Kaoru Takara. Changes of Water Quality in the Yangtze River Basin. Impacts of Climate and Human Activities on Water Resources and Quality. 2020; ():31-55.

Chicago/Turabian Style

Weili Duan; Kaoru Takara. 2020. "Changes of Water Quality in the Yangtze River Basin." Impacts of Climate and Human Activities on Water Resources and Quality , no. : 31-55.

Chapter
Published: 31 March 2020 in Impacts of Climate and Human Activities on Water Resources and Quality
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Continued global warming has severely affected the spatiotemporal distribution of water resources and extreme climate events (Brown and Funk 2008; Coumou and Rahmstorf 2012; Hendrix and Salehyan 2012). For example, Oki and Kanae (2006) argued that the spatiotemporal of precipitation is very uneven, resulting in significant time-varying changes in water resources worldwide. Zhang et al. (2007) found that precipitation tends to increase in the mid-latitudes of the northern hemisphere, drying in the subtropical and tropical regions of the northern hemisphere, and moistening in the subtropical and deep-tropical regions of the southern hemisphere.

ACS Style

Weili Duan; Kaoru Takara. Precipitation Changes in Hokkaido and Future Water Resources in Its Main Rivers. Impacts of Climate and Human Activities on Water Resources and Quality 2020, 97 -126.

AMA Style

Weili Duan, Kaoru Takara. Precipitation Changes in Hokkaido and Future Water Resources in Its Main Rivers. Impacts of Climate and Human Activities on Water Resources and Quality. 2020; ():97-126.

Chicago/Turabian Style

Weili Duan; Kaoru Takara. 2020. "Precipitation Changes in Hokkaido and Future Water Resources in Its Main Rivers." Impacts of Climate and Human Activities on Water Resources and Quality , no. : 97-126.

Chapter
Published: 31 March 2020 in Impacts of Climate and Human Activities on Water Resources and Quality
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Water is one of the leading drivers of sustainable development of human social economy (Steffen et al. 2015). With the fast development of economy and the growth of population, the demand of freshwater for human is growing rapidly, and water shortage is one of the major crises of the twenty-first century in the world (Pangare 2006; Pearce 2018; Polizzotto et al. 2008).

ACS Style

Weili Duan; Kaoru Takara. Spatiotemporal Evaluation of Water Quality and Water Quality Incidents Over Japan. Impacts of Climate and Human Activities on Water Resources and Quality 2020, 57 -72.

AMA Style

Weili Duan, Kaoru Takara. Spatiotemporal Evaluation of Water Quality and Water Quality Incidents Over Japan. Impacts of Climate and Human Activities on Water Resources and Quality. 2020; ():57-72.

Chicago/Turabian Style

Weili Duan; Kaoru Takara. 2020. "Spatiotemporal Evaluation of Water Quality and Water Quality Incidents Over Japan." Impacts of Climate and Human Activities on Water Resources and Quality , no. : 57-72.

Chapter
Published: 31 March 2020 in Impacts of Climate and Human Activities on Water Resources and Quality
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The sustainable development of human social society and economy requires access to water resources. With the rapid growth of the world’s population, global water shortages will become the main crisis of the twenty-first century (Eliasson 2015; Pearce 2006; Schade and Pimentel 2010; Vörösmarty et al. 2010); more specifically, population dynamics (growth, age distribution, urbanization, and migration) create pressures on freshwater resources due to the increased water demands and pollution (Mekonnen and Hoekstra 2016; Polizzotto et al. 2008).

ACS Style

Weili Duan; Kaoru Takara. Introduction. Impacts of Climate and Human Activities on Water Resources and Quality 2020, 1 -9.

AMA Style

Weili Duan, Kaoru Takara. Introduction. Impacts of Climate and Human Activities on Water Resources and Quality. 2020; ():1-9.

Chicago/Turabian Style

Weili Duan; Kaoru Takara. 2020. "Introduction." Impacts of Climate and Human Activities on Water Resources and Quality , no. : 1-9.

Journal article
Published: 19 January 2020 in Sustainability
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The relationship between land landscape and water quality has been a hot topic, especially for researchers in headwater catchment, because of drinking water safety and ecological protection. In this study, Lita Watershed, a typical headwater catchment of Southeast China, was selected as the study area. During 2015 and 2016, water samples were collected from 18 sampling points every month, and 19 water quality parameters were tested such as nutrients and heavy metals. Through multistatistics analysis, the results show that the most sensitive water quality parameters are Cr, NO3, NO2, and COD. The type and scale of water body have direct effects on water quality, while the land-use patterns in the surrounding areas have an indirect impact on the concentration and migration of pollutants. This effect is sensitive to seasonal change because heavy metals are mainly from atmospheric deposition, but nutrients are mainly from agricultural nonpoint source pollution. According to the results, increasing the proportion of forest land and paddy field is effective to the reduction of water nutrients. Besides, balancing the configuration of water bodies, especially increasing the capacity of the pond, can significantly alleviate the water pollution in the dry season. This study is useful to provide policy suggestion for refined watershed management and water source planning basing on seasons and pollution sources.

ACS Style

Kaiyan Zhao; Huawu Wu; Wen Chen; Wei Sun; Haixia Zhang; Weili Duan; Wenjun Chen; Bin He. Impacts of Landscapes on Water Quality in A Typical Headwater Catchment, Southeastern China. Sustainability 2020, 12, 721 .

AMA Style

Kaiyan Zhao, Huawu Wu, Wen Chen, Wei Sun, Haixia Zhang, Weili Duan, Wenjun Chen, Bin He. Impacts of Landscapes on Water Quality in A Typical Headwater Catchment, Southeastern China. Sustainability. 2020; 12 (2):721.

Chicago/Turabian Style

Kaiyan Zhao; Huawu Wu; Wen Chen; Wei Sun; Haixia Zhang; Weili Duan; Wenjun Chen; Bin He. 2020. "Impacts of Landscapes on Water Quality in A Typical Headwater Catchment, Southeastern China." Sustainability 12, no. 2: 721.

Article
Published: 05 August 2019 in Journal of Mountain Science
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Throughfall variability plays a crucial role in regulating hydrological and biogeochemical processes in forest ecosystems. However, throughfall variability and its potential influencing factors remain unclear in the subtropical deciduous forest because of its complex canopy and meteorological conditions. Here, the spatial variability and temporal stability of throughfall were investigated from October 2016 to December 2017 within a deciduous forest in the subtropical hilly regions of eastern China, and the effects of meteorological variables and distance from nearest tree trunk on throughfall variability were systematically evaluated. Throughfall variability during the leafed period was slightly higher than that during the leafless period inferred from the coefficient of variation of throughfall amounts (CVTF), with 13.2%–40.9% and 18.7%–31.9%, respectively. The multiple regression model analysis suggested that the controlling factors of throughfall variability were different in studied periods: Maximum 10-min rainfall intensity, wind speed and air temperature were the dominant influencing factors on throughfall variability during the leafed period, with the relative contribution ratio (RCR) of 25.9%, 18.7% and 8.9%, respectively. By contrast, throughfall variability was affected mainly by the mean rainfall intensity (RCR=40.8%) during the leafless period. The temporal stability plots and geostatistical analysis indicated that spatial patterns of throughfall were stable and similar among rainfall events. Our findings highlight the important role of various meteorological factors in throughfall variability and are expected to contribute to the accurate assessment of throughfall, soil water and runoff within the subtropical forests.

ACS Style

Hai-Xia Zhang; Hua-Wu Wu; Jing Li; Bin He; Jiu-Fu Liu; Niu Wang; Wei-Li Duan; Ai-Min Liao. Spatial-temporal variability of throughfall in a subtropical deciduous forest from the hilly regions of eastern China. Journal of Mountain Science 2019, 16, 1788 -1801.

AMA Style

Hai-Xia Zhang, Hua-Wu Wu, Jing Li, Bin He, Jiu-Fu Liu, Niu Wang, Wei-Li Duan, Ai-Min Liao. Spatial-temporal variability of throughfall in a subtropical deciduous forest from the hilly regions of eastern China. Journal of Mountain Science. 2019; 16 (8):1788-1801.

Chicago/Turabian Style

Hai-Xia Zhang; Hua-Wu Wu; Jing Li; Bin He; Jiu-Fu Liu; Niu Wang; Wei-Li Duan; Ai-Min Liao. 2019. "Spatial-temporal variability of throughfall in a subtropical deciduous forest from the hilly regions of eastern China." Journal of Mountain Science 16, no. 8: 1788-1801.

Journal article
Published: 31 May 2019 in Sustainability
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Water resources are increasingly under stress in Central Asia because downstream countries are highly dependent on upstream countries. Water is essential for irrigation and is becoming scarcer due to climate change and human activities. Based on 20 hydrological stations, this study firstly analyzed the annual and seasonal spatial–temporal changes of the river discharges, precipitation, and temperature in the Syr Darya River Basin and then the possible relationships between these factors were detected. Finally, the potential reasons for the river discharge variations have been discussed. The results show that the river discharges in the upper stream of the basin had significantly risen from 1930 to 2006, mainly due to the increase in temperature (approximately 0.3 °C per decade), which accelerated the melting of glaciers, while it decreased in the middle and lower regions due to the rising irrigation. In the middle of the basin, the expansion of the construction land (128.83 km2/year) and agricultural land (66.68 km2/year) from 1992 to 2015 has significantly augmented the water consumption. The operations of reservoirs and irrigation canals significantly intercepted the river discharge from the upper streams, causing a sharp decline in the river discharges in the middle and lower reaches of the Syr Darya River in 1973. The outcomes obtained from this study allowed us to understand the changes in the river discharges and provided essential information for effective water resource management in the Syr Darya River Basin.

ACS Style

Shan Zou; Abuduwaili Jilili; Weili Duan; Philippe Maeyer; Tim De Voorde. Human and Natural Impacts on the Water Resources in the Syr Darya River Basin, Central Asia. Sustainability 2019, 11, 3084 .

AMA Style

Shan Zou, Abuduwaili Jilili, Weili Duan, Philippe Maeyer, Tim De Voorde. Human and Natural Impacts on the Water Resources in the Syr Darya River Basin, Central Asia. Sustainability. 2019; 11 (11):3084.

Chicago/Turabian Style

Shan Zou; Abuduwaili Jilili; Weili Duan; Philippe Maeyer; Tim De Voorde. 2019. "Human and Natural Impacts on the Water Resources in the Syr Darya River Basin, Central Asia." Sustainability 11, no. 11: 3084.

Journal article
Published: 13 April 2019 in Water
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Soil moisture plays a critical role in land-atmosphere interactions. Quantifying the controls on soil moisture is highly valuable for effective management of water resources and climatic adaptation. In this study, we quantified the effects of precipitation, temperature, and vegetation on monthly soil moisture variability in an arid area, China. A non-linear Granger causality framework was applied to examine the causal effects based on multi-decadal reanalysis data records. Results indicate that precipitation had effects on soil moisture in about 91% of the study area and explained up to 40% of soil moisture variability during 1982–2015. Temperature and vegetation explained up to 8.2% and 3.3% of soil moisture variability, respectively. Climatic extremes were responsible for up to 10% of soil moisture variability, and the importance of climatic extremes was low compared to that of the general climate dynamics. The time-lagged analysis shows that the effects of precipitation and temperature on soil moisture were immediate and dissipated shortly. In addition, the effects of precipitation on soil moisture decreased with the increase of precipitation, soil moisture, and elevation. This study provides deep insight for uncovering the drivers of soil moisture variability in arid regions.

ACS Style

Yunqian Wang; Jing Yang; Yaning Chen; Gonghuan Fang; Weili Duan; Yupeng Li; Philippe De Maeyer. Quantifying the Effects of Climate and Vegetation on Soil Moisture in an Arid Area, China. Water 2019, 11, 767 .

AMA Style

Yunqian Wang, Jing Yang, Yaning Chen, Gonghuan Fang, Weili Duan, Yupeng Li, Philippe De Maeyer. Quantifying the Effects of Climate and Vegetation on Soil Moisture in an Arid Area, China. Water. 2019; 11 (4):767.

Chicago/Turabian Style

Yunqian Wang; Jing Yang; Yaning Chen; Gonghuan Fang; Weili Duan; Yupeng Li; Philippe De Maeyer. 2019. "Quantifying the Effects of Climate and Vegetation on Soil Moisture in an Arid Area, China." Water 11, no. 4: 767.