Development of a model to simulate soil heavy metals lateral migration quantity based on SWAT in Huanjiang watershed, China

doi:10.1016/j.jes.2018.06.020

	Development of a model to simulate soil heavy metals lateral migration quantity based on SWAT in Huanjiang watershed, China
	Qiao, Pengwei 1,2; Lei, Mei 1; Yang, Sucai 2; Yang, Jun 1; Zhou, Xiaoyong 1; Dong, Nan 3; Guo, Guanghui 1
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
	2019-03-01
卷号	77 页码:115-129
关键词	Soil heavy metal migration Simulation model Watershed subdivision Optimal drainage area threshold percentage Simulation accuracy
ISSN号	1001-0742
DOI	10.1016/j.jes.2018.06.020
通讯作者	Lei, Mei(leim@igsnrr.ac.cn) ; Yang, Jun(yangj@igsnrr.ac.cn)
英文摘要	Lateral transportation of soil heavy metals in rainfall events could significantly increase the scope of pollution. Therefore, it is necessary to develop a model with high accuracy to simulate the migration quantity of heavy metals. A model for heavy metal migration simulation was developed based on the SWAT (Soil and Water Assessment Tool) model. This model took into consideration the influence of soil pH value, soil particle size, runoff volume, sediment amount, concentration of water-soluble heavy metals dissolved in runoff and insoluble absorbed to the soil particles. This model was reasonable in Huanjiang watershed, Guangxi Zhuang Autonomous Region, south China, covering an area of 273 km(2) The optimal drainage area threshold was determined by analyzing the effects of watershed subdivision on the simulation results to ensure the simulation accuracy. The main conclusions of this paper were: (1) watershed subdivision could affect simulation migration quantity of heavy metals; (2) the quantity of heavy metals transported by sediment accounted for 97%-99% of the total migration quantity in the study watershed. Therefore, sediment played the most important role in heavy metal migration; (3) the optimal drainage area threshold percentage to ensure high simulation accuracy was determined to be 2.01% of the total watershed; (4) with the optimal threshold percentage, this model could simulate the migration quantity of As, Pb and Cd accurately at the total watershed and subwatershed level. The results of this paper were useful for identifying the key regions with heavy metal migration. (C) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
资助项目	Hi-Tech Research and Development Program (863) of China[2014AA06A513] ; Beijing Postdoctoral Research Foundation ; Project of Heavy Metal Risk Warning and Phytoremediation in Mining Concentrated Area[GJHZ201308] ; Special Fund for Environment Protection Research in the Public Interest[201409044] ; Study on Heavy Metal Accumulation Risk and Early Warning in Typical Ore Concentration Area[201111020-4]
WOS关键词	SPATIAL VARIABILITY ; SUBDIVISION ; RUNOFF ; SEDIMENTS ; CONTAMINATION ; ADSORPTION ; SPECIATION ; MANAGEMENT ; EROSION ; URBAN
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000463374900012
资助机构	Hi-Tech Research and Development Program (863) of China ; Beijing Postdoctoral Research Foundation ; Project of Heavy Metal Risk Warning and Phytoremediation in Mining Concentrated Area ; Special Fund for Environment Protection Research in the Public Interest ; Study on Heavy Metal Accumulation Risk and Early Warning in Typical Ore Concentration Area
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/48072]
专题	中国科学院地理科学与资源研究所
通讯作者	Lei, Mei; Yang, Jun
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Environm Protect Res Inst Light Ind, Beijing Key Lab Remediat Ind Pollut Sites, Beijing 100089, Peoples R China 3.Comprehens Inst Geotech Invest & Surveying Ltd, Beijing 100007, Peoples R China
推荐引用方式 GB/T 7714	Qiao, Pengwei,Lei, Mei,Yang, Sucai,et al. Development of a model to simulate soil heavy metals lateral migration quantity based on SWAT in Huanjiang watershed, China[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2019,77:115-129.
APA	Qiao, Pengwei.,Lei, Mei.,Yang, Sucai.,Yang, Jun.,Zhou, Xiaoyong.,...&Guo, Guanghui.(2019).Development of a model to simulate soil heavy metals lateral migration quantity based on SWAT in Huanjiang watershed, China.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,77,115-129.
MLA	Qiao, Pengwei,et al."Development of a model to simulate soil heavy metals lateral migration quantity based on SWAT in Huanjiang watershed, China".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 77(2019):115-129.