Transportation processes and rates of heavy metals in an artificial rainstorm runoff under different land use types

Chinese Journal of Applied Ecology ›› 2003, Vol. ›› Issue (10): 1756-1760.

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Transportation processes and rates of heavy metals in an artificial rainstorm runoff under different land use types

LIANG Tao¹, WANG Hao², ZHANG Xiumei¹, ZHANG Shen¹, YU Kngxiu ³

1. Institute of Geographic Sciences and Natural Resources research, Chinese Academy of Sciences, Beijing 100101, China;
2. Institute of Environmental Science, Beijing Normal University, Beijing 100875, China;
3. Institute of geographic sciences and lake research, Chinese Academy of Sciences, Nanjing 210008, China

Received:2002-05-29 Revised:2002-11-04 Online:2003-10-15

Abstract

Abstract: Studies on the transportation and flux of various kinds of heavy metals in runoff and sediment of five typical land-use types in West Tiaoxi catchment showed that the losses of Cu (0.21 mg·m^-2·min^-1), Zn (0.45 mg·m^-2· min^-1), and Pb (0.15 mg·m^-2·min^-1) in mulberry and that of Cr (0.06 mg·m^-2·min^-1) in paddy field were larger in surface runoff, while their losses in pinery were very small.Suspended thin particles played the main role on transporting heavy metals in surface runoff under all kinds of land uses.The losses from runoff were much lower than that from sediment, which only occupied 0.1 %～4.9 %, and the loss rate of Cu from runoff and sediment was higher than that of Cr, Pb and Zn.

CLC Number:

P595

LIANG Tao, WANG Hao, ZHANG Xiumei, ZHANG Shen, YU Kngxiu . Transportation processes and rates of heavy metals in an artificial rainstorm runoff under different land use types[J]. Chinese Journal of Applied Ecology, 2003, (10): 1756-1760.

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Transportation processes and rates of heavy metals in an artificial rainstorm runoff under different land use types

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