developmentofamodeltosimulatesoilheavymetalslateralmigrationquantitybasedonswatinhuanjiangwatershedchina

	developmentofamodeltosimulatesoilheavymetalslateralmigrationquantitybasedonswatinhuanjiangwatershedchina
	Pengwei Qiao 1; Mei Lei 1; Sucai Yang 3; Jun Yang 1; Xiaoyong Zhou 1; Nan Dong 2; Guanghui Guo 1
刊名	环境科学学报英文版
	2019
卷号	000 期号:003 页码:115
ISSN号	1001-0742
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 p H 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.
语种	英语
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/75381]
专题	中国科学院地理科学与资源研究所
作者单位	1.中国科学院地理科学与资源研究所 2.Comprehensive Institute of Geotechnical Investigation and Surveying, Ltd. 3.Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Environmental Protection Research Institute of Light Industry
推荐引用方式 GB/T 7714	Pengwei Qiao,Mei Lei,Sucai Yang,et al. developmentofamodeltosimulatesoilheavymetalslateralmigrationquantitybasedonswatinhuanjiangwatershedchina[J]. 环境科学学报英文版,2019,000(003):115.
APA	Pengwei Qiao.,Mei Lei.,Sucai Yang.,Jun Yang.,Xiaoyong Zhou.,...&Guanghui Guo.(2019).developmentofamodeltosimulatesoilheavymetalslateralmigrationquantitybasedonswatinhuanjiangwatershedchina.环境科学学报英文版,000(003),115.
MLA	Pengwei Qiao,et al."developmentofamodeltosimulatesoilheavymetalslateralmigrationquantitybasedonswatinhuanjiangwatershedchina".环境科学学报英文版 000.003(2019):115.