HEAVY METALS;
POLLUTION;
SMOLL WATERSHED;
LYSIMETER;
BUDGETS OF ELEMENTS;
D O I:
10.1016/0048-9697(95)04321-Q
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
The measurements of all forms of atmospheric fallout, migration of heavy metals (HM) in soil water, in soluble and suspended form, and the stream output from a small watershed were examined. The geochemistry of Pb, Zn, Cd and Cu in a polluted ecosystem of oak forests has been studied. The process of HM fixation is concurrent with the process of their migration in the more energy saturated soil-plant part of an ecosystem. The main factor of HM migration is water-soluble organic compounds. The basic pool of accumulation of HM is a thin layer of mull; plants support a high HM load.