The problems faced by wetland are poldering reclamation, water pollution, eutrophication, water and soil loss, excessive utilization of biological resource due to history and human being.
由于历史和人为原因，湖北湿地存在的问题主要表现为围垦、富营养化、水土流失及其生物资源的过度利用。
The characteristics of Cd pollution in soil, Cd forms transformation in the soil and its biological toxicity are reviewed in this paper.
论述了土壤Cd污染的特点、Cd在土壤中的形态转化特征、生物毒性及我国目前土壤Cd污染现状及危害。
The characteristics of Cd pollution in soil, Cd forms transformation in the soil and its biological toxicity are reviewed in this paper.
论述了土壤Cd污染的特点、Cd在土壤中的形态转化特征、生物毒性及我国目前土壤Cd污染现状及危害。
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