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Peng Shi
State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi’an University of Technology, Xi’an 710048, China

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Journal article
Published: 08 July 2021 in Ecological Indicators
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The selection of suitable indicators is the key to the development of multi-metric bioassessment. Here, we examined how taxonomic and functional structures of macroinvertebrate communities responded to the environmental gradients in ten mountainous streams in the Weihe River and Hanjiang River basins, two subtropical biodiversity hotspots in central China. Our main objectives were: 1) to examine whether trait-based metrics performed better than taxonomic compositions in differentiating environmental gradients; 2) to test whether indicators (species and traits) were more efficient than entire communities in discriminating three site groups subjected to different levels of human disturbances. Our results showed that both taxonomic and functional trait compositions, including species- and trait-based indicators, were all sensitive to environmental disturbance. Particularly, the trait-based variables responded more sensitive to human disturbances. Indicator assemblages can be effective surrogates of entire communities in response to environmental changes. Traits- and indicators-based metrics should be considered as useful supplements in the existent bio-monitoring schemes in China. We argued that the combination of taxonomic and functional indicators should be implemented in bioassessment, as they reflect different aspects of environmental changes and anthropogenic disturbances.

ACS Style

Wanxiang Jiang; Baozhu Pan; XiaoMing Jiang; Peng Shi; Penghui Zhu; Lei Zhang; Jing Chen; Naicheng Wu. A comparative study on the indicative function of species and traits structure of stream macroinvertebrates to human disturbances. Ecological Indicators 2021, 129, 107939 .

AMA Style

Wanxiang Jiang, Baozhu Pan, XiaoMing Jiang, Peng Shi, Penghui Zhu, Lei Zhang, Jing Chen, Naicheng Wu. A comparative study on the indicative function of species and traits structure of stream macroinvertebrates to human disturbances. Ecological Indicators. 2021; 129 ():107939.

Chicago/Turabian Style

Wanxiang Jiang; Baozhu Pan; XiaoMing Jiang; Peng Shi; Penghui Zhu; Lei Zhang; Jing Chen; Naicheng Wu. 2021. "A comparative study on the indicative function of species and traits structure of stream macroinvertebrates to human disturbances." Ecological Indicators 129, no. : 107939.

Preprint content
Published: 03 March 2021
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The over 100,000 check dams constructed across the Loess Plateau for soil and water conservation may have substantially changed the hydrological processes in the region, which, however, has not been understood yet. As a critical step towards revealing the lumped effect of check dams at the regional scale, this study explored the modified flood hydrology induced by check dams in Wangmaogou catchment, a representative small Loess Plateau watershed. A coupled hydrological and hydraulic modeling approach was applied to simulate the flooding process for different stages of deposition and topographic changes in the check dam reservoir. The results suggest a paradigm shift of the dam effect on flood attributes, which transits from a total interception in the early stage of the dam to peak reduction and flood detention, rather than a complete loss of flood control functions, when it approaches the maximum capacity of sedimentation. Under a given level of deposition, the reduction to a minor flood by a check dam was higher than that to a major flood. With the progression of siltation behind the check dam, the flood peak reduction rate, flood volume reduction rate, and flood lag time decreased accordingly. Although the check dam with a reservoir fully filled by sediment lost its ability of intercepting floods, it still exhibited a considerable ability to reduce the peaks of floods. The topographical changes contributed to the reduction of flood peak appreciably by reducing the flow velocity and retarding the flood propagation. Noticeably, this reduction augmented with the advancement of siltation and the topographic change, indicating the persistence of the hydrologic effect of check dams in a long run. As a result of hydrological changes, the reduction in flood flow velocity due to check dam suggests a substantial reduction in sediment transport and channel erosion during floods. In addition, a dam system containing multiple, cascading check dams exhibits much more significant effect in modifying both hydrologic and hydraulic properties of flood than individual dams. The current research provides a mechanistic understanding of the check dam effect on watershed hydrology under heavy rainstorms in small catchments, which sheds light on evaluating the upscaled effect of the large number of check dams on Loess Plateau regional hydrology and water resources.

ACS Style

Shuilong Yuan; Peng Li; Peng Shi; Zeyu Zhang. Influence of Loess Plateau check dams on catchment flood hydrology across varying stages of lifespan. 2021, 1 .

AMA Style

Shuilong Yuan, Peng Li, Peng Shi, Zeyu Zhang. Influence of Loess Plateau check dams on catchment flood hydrology across varying stages of lifespan. . 2021; ():1.

Chicago/Turabian Style

Shuilong Yuan; Peng Li; Peng Shi; Zeyu Zhang. 2021. "Influence of Loess Plateau check dams on catchment flood hydrology across varying stages of lifespan." , no. : 1.

Original paper
Published: 10 February 2021 in Natural Hazards
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The sedimentation by check dam in the channel affects hydrological process. In this study, the effects of the sedimentation on the dynamic process of runoff and erosion power were investigated by dynamic coupling models (MIKE SHE model and MIKE 11 model). The study area was located in Wangmaogou watershed in the Loess Plateau of China. Four scenarios including no check dam and check dam with siltation depths of 0, 4 and 8 m were designed to study the reduction effectiveness of check dam on the hydrodynamic processes. The research showed that the silt dam not only reduced the total volume flow rate of floods but also increased the flood duration and delayed the occurrence of flood peaks. The siltation depths of the dam influenced the flow velocity and runoff shear stress. With deposition, the channel was longer in 8 m siltation compared with 0 and 4 m siltation. The shear force and unit runoff power were remarkably reduced in the scenario of 8 m siltation, followed by 4 m, and lastly by 0 m. The dam system can still vastly reduce the flow velocity along the channel in the full state and decrease the maximum flow velocity along the channel by more than 50%. The decrease in flow velocity was the main reason for the decrease in the sediment-carrying capacity of the runoff, which directly reduced the runoff erosion intensity. This study provides the scientific basis for understanding the regulation of check dam and sedimentation on hydrological process.

ACS Style

Zhaohong Feng; Zhanbin Li; Peng Shi; Peng Li; Tian Wang; Jinxiao Duan. Impact of sedimentation by check dam on the hydrodynamics in the channel on the Loess Plateau of China. Natural Hazards 2021, 107, 953 -969.

AMA Style

Zhaohong Feng, Zhanbin Li, Peng Shi, Peng Li, Tian Wang, Jinxiao Duan. Impact of sedimentation by check dam on the hydrodynamics in the channel on the Loess Plateau of China. Natural Hazards. 2021; 107 (1):953-969.

Chicago/Turabian Style

Zhaohong Feng; Zhanbin Li; Peng Shi; Peng Li; Tian Wang; Jinxiao Duan. 2021. "Impact of sedimentation by check dam on the hydrodynamics in the channel on the Loess Plateau of China." Natural Hazards 107, no. 1: 953-969.

Preprint content
Published: 23 March 2020
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Vegetation restoration, terrace and check dam construction are the major measures for soil and water conservation on the Loess Plateau. These effective measures of stabilizing soils have significant impacts on soil organic carbon (SOC) distribution. To understand the impact of land-use changes combined with check dam construction on SOC distribution, 1060 soil samples were collected across a watershed on the Loess Plateau. Forestland, shrubland and terrace had significant higher SOC concentrations in the 0-20 cm soil layer than that of sloping cropland.    Land use change affects the process of runoff and sediment transportation, which has an impact on the migration and transformation of soil carbon. The soil erosion of sloping farmland is the most serious, and the maximum annual erosion rate is as high as 10853.56 t·km-2. Carbon sedimented in the dam land was mainly from sloping cropland, and this source percentage was 65%. The application of hydrological controls to hillslopes and along river channels should be considered when assessing carbon sequestration within the soil erosion subsystem. 

ACS Style

Peng Shi; Yan Zhang; Kexin Lu; Zhaohong Feng; Yang Yu. Distribution of soil organic carbon impacted by land-use change and check dam on the Loess Plateau of China. 2020, 1 .

AMA Style

Peng Shi, Yan Zhang, Kexin Lu, Zhaohong Feng, Yang Yu. Distribution of soil organic carbon impacted by land-use change and check dam on the Loess Plateau of China. . 2020; ():1.

Chicago/Turabian Style

Peng Shi; Yan Zhang; Kexin Lu; Zhaohong Feng; Yang Yu. 2020. "Distribution of soil organic carbon impacted by land-use change and check dam on the Loess Plateau of China." , no. : 1.

Journal article
Published: 09 April 2019 in Water
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Soil water is the limitation factors in the semiarid region for vegetation growth. With the large scale “Grain for Green” implementation on the Loess Plateau of China, an amount of sloping cropland was converted to forestland, shrubland, and grassland. The spatial and temporal distribution of soil water was changed. However, the effect of revegetation on soil water movement is still unclear. In this study, we analyze the stable isotopes changes in precipitation and soil water in sloping cropland, forestland, shrubland, and grassland to trace the movement of moisture in soil. The results showed that δ18O in shallow layers (

ACS Style

Haocheng Ke; Peng Li; Zhanbin Li; Peng Shi; Jingming Hou. Soil Water Movement Changes Associated with Revegetation on the Loess Plateau of China. Water 2019, 11, 731 .

AMA Style

Haocheng Ke, Peng Li, Zhanbin Li, Peng Shi, Jingming Hou. Soil Water Movement Changes Associated with Revegetation on the Loess Plateau of China. Water. 2019; 11 (4):731.

Chicago/Turabian Style

Haocheng Ke; Peng Li; Zhanbin Li; Peng Shi; Jingming Hou. 2019. "Soil Water Movement Changes Associated with Revegetation on the Loess Plateau of China." Water 11, no. 4: 731.

Review
Published: 21 December 2018 in Applied Sciences
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Nitrate pollution in surface water has become an environmental problem of global concern. The effective way for controlling the nitrate pollution of surface water is to identify the pollution source and reduce the input of nitrate. In recent decades, nitrogen (δ15N) and oxygen (δ18O) isotopes of nitrate has been used as an effective approach for identifying the source and fate of nitrate pollution in surface water. However, owing to the complexity of nitrate pollution source and the influence of isotopic fractionation, the application of this method has some limitations. In this work, we systematically discussed the fundamental principle of using nitrogen and oxygen isotopes to trace the nitrate source, the fate identification of nitrate, and the major testing techniques. Subsequently, the applications of nitrogen and oxygen isotopes for source identification of surface water were illustrated. However, there are still significant gaps in the application of the source identification and transformation mechanisms to nitrate and many research questions on these topics need to be addressed.

ACS Style

Yan Zhang; Peng Shi; Jinxi Song; Qi Li. Application of Nitrogen and Oxygen Isotopes for Source and Fate Identification of Nitrate Pollution in Surface Water: A Review. Applied Sciences 2018, 9, 18 .

AMA Style

Yan Zhang, Peng Shi, Jinxi Song, Qi Li. Application of Nitrogen and Oxygen Isotopes for Source and Fate Identification of Nitrate Pollution in Surface Water: A Review. Applied Sciences. 2018; 9 (1):18.

Chicago/Turabian Style

Yan Zhang; Peng Shi; Jinxi Song; Qi Li. 2018. "Application of Nitrogen and Oxygen Isotopes for Source and Fate Identification of Nitrate Pollution in Surface Water: A Review." Applied Sciences 9, no. 1: 18.

Journal article
Published: 28 February 2014 in International Journal of Environmental Research and Public Health
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The construction of large-scale infrastructures such as nature gas/oil pipelines involves extensive disturbance to regional ecosystems. Few studies have documented the soil degradation and heavy metal contamination caused by pipeline construction. In this study, chromium (Cr), cadmium (Cd), copper (Cu), nickel (Ni), lead (Pb) and zinc (Zn) levels were evaluated using Index of Geo-accumulation (Igeo) and Potential Ecological Risk Index (RI) values, and human health risk assessments were used to elucidate the level and spatial variation of heavy metal pollution risks. The results showed that the impact zone of pipeline installation on soil heavy metal contamination was restricted to pipeline right-of-way (RoW), which had higher Igeo of Cd, Cu, Ni and Pb than that of 20 m and 50 m. RI showed a declining tendency in different zones as follows: trench > working zone > piling area > 20 m > 50 m. Pipeline RoW resulted in higher human health risks than that of 20 m and 50 m, and children were more susceptible to non-carcinogenic hazard risk. Cluster analysis showed that Cu, Ni, Pb and Cd had similar sources, drawing attention to the anthropogenic activity. The findings in this study should help better understand the type, degree, scope and sources of heavy metal pollution from pipeline construction to reduce pollutant emissions, and are helpful in providing a scientific basis for future risk management.

ACS Style

Peng Shi; Jun Xiao; Yafeng Wang; Liding Chen. Assessment of Ecological and Human Health Risks of Heavy Metal Contamination in Agriculture Soils Disturbed by Pipeline Construction. International Journal of Environmental Research and Public Health 2014, 11, 2504 -2520.

AMA Style

Peng Shi, Jun Xiao, Yafeng Wang, Liding Chen. Assessment of Ecological and Human Health Risks of Heavy Metal Contamination in Agriculture Soils Disturbed by Pipeline Construction. International Journal of Environmental Research and Public Health. 2014; 11 (3):2504-2520.

Chicago/Turabian Style

Peng Shi; Jun Xiao; Yafeng Wang; Liding Chen. 2014. "Assessment of Ecological and Human Health Risks of Heavy Metal Contamination in Agriculture Soils Disturbed by Pipeline Construction." International Journal of Environmental Research and Public Health 11, no. 3: 2504-2520.