水资源与水工程学报

文章摘要

WANG Jun,FU Xiao.植物根系对重金属在土壤中运移影响的数值模拟研究Journal of Water Resources and Water Engineering[J].,2011,22(1):

植物根系对重金属在土壤中运移影响的数值模拟研究

Numerical simulation for the effect of plant roots on transport heavy metal in soil

DOI：10.11705/j.issn.1672-643X.2011.01.006

英文关键词: plant roots heavy metal soil transportation absorption numerical simulation

基金项目:国家水体污染控制与治理重大专项(2008ZX07314-005-011)

Author Name	Affiliation
WANG Jun,FU Xiao	WANG Jun1,2,FU Xiao3(1.College of Environmental Science and Engineering,Nankai University,Tianjin 300071,China,2.Department of Fundamental Subject,Tianjin Institute of Urban Construction,Tianjin 300384,3.Hydro China Huadong Engineering Corporation,Hangzhou 310014,China)

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中文摘要:

土壤重金属污染是全球面临的一个重要环境问题。本文通过数值模拟,探讨了低吸收植物、普通植物和超富集植物3种植物根系对重金属在土壤中运移的影响。污染初期,有植物土柱的污染程度均高于无植物土柱。随着污染的持续,超富集植物土柱污染程度最先低于无植物土柱,然后普通植物土柱污染程度也开始低于无植物土柱。超富集植物土柱重金属浓度分布很快达到稳定,而普通植物土柱重金属浓度分布范围和峰值仍随时间而增大。低吸收植物土柱污染程度最为严重,重金属浓度峰值会超过污染源输入浓度,且峰值下移。

英文摘要:

Heavy metal pollution is an important environmental problem in global.This paper discussed the effects of three plant roots as low level absorption plant,common plant and hyper-accumulative plant on the heavy metal transporting in soil by the mumerical simulation.In the initial stage,the contamination degree of soil columns with plant was higher than soil column without plant.As pollution went on,the contamination degree of soil column with super-accumulative plant was lower then that of soil column without...

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