标题：Assessment of debris inputs from land into the river in the Three Gorges Reservoir Area, China
作者： Wan, J (Wan, Jing); Wang, YG (Wang, Yonggui); Cheng, ML (Cheng, Meiling); Engel, BA (Engel, Bernard A.); Zhang, WS (Zhang, Wanshun); Peng, H (Peng, Hong)
来源出版物：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 卷：25期：6 SI页码: 5539-5549 DOI：10.1007/s11356-017-0881-6 出版年：FEB 2018
摘要：Riverine debris in the Three Gorges Reservoir Area (TGRA) poses a threat to electricity generation, ship navigation, and water environment. Quantifying riverine debris inputs from land into the river is a foundation for modeling of the transport and accumulation of floating debris on the water surface in the TGRA. However, this has not been researched to date. In this study, debris inputs from land into the river in the TGRA were assessed according to the response relationship between debris inputs and surface runoff. The land-based debris inputs in the TGRA were estimated using simulated surface runoff which was simulated by the Soil and Water Assessment Tool (SWAT) model. Results showed that 15.32 x 10(6) kg of land-based debris was inputted into the main channel of the TGRA in 2015 which accounted for 9.74% of total debris inputs (the monitoring data of river-sourced and land-sourced debris inputs was 157.27 x 10(6) kg). Debris inputs varied seasonally and peaked in the summer season (July to September). Compared with monthly measured data, the average relative errors in 2015 were below 30%. In addition, areas with higher debris pollution inputs were mainly located in the upper section of the TGRA, between the Tang River Basin and the Long River Basin. The proposed method was tested and determined to be reliable; thus, it can be used to quickly estimate debris inputs from land into the river by surface runoff of the outlets in a river basin. Moreover, this method provides new insight into the estimation of land-based debris inputs into rivers.
作者关键词：Land-based source; Debris pollution; Surface runoff; Seasonal variation; Annual input; Three Gorges Reservoir Area
扩展关键词： FLOATING DEBRIS; MARINE-ENVIRONMENT; PLASTIC DEBRIS; BASIN; MICROPLASTICS; ACCUMULATION; LITTER; CATCHMENTS; TRANSPORT; ABUNDANCE
通讯作者地址：Zhang, WS (reprint author), Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Hubei, Peoples R China.
Zhang, WS (reprint author), Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Hubei, Peoples R China.
[Wan, Jing; Wang, Yonggui; Cheng, Meiling; Zhang, Wanshun] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Hubei, Peoples R China.
[Engel, Bernard A.] Purdue Univ, Agr & Biol Engn, W Lafayette, IN 47907 USA.
[Zhang, Wanshun] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Hubei, Peoples R China.
[Peng, Hong] Wuhan Univ, Sch Water Resources & Hydropower Engn, Wuhan 430072, Hubei, Peoples R China.
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