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中文摘要：
土壤中有机污染物的残留形态可分为可提取态残留和结合态残留，不同残留的植物毒性和可利用性差异很大，用污染物的总量指标很难准确地评价土壤有机污染的程度、风险和修复效果。根据国内外现有研究结果，着重介绍了土壤中有机污染物的不同残留形态及其转化作用，比较了可提取态残留和结合态残留植物可利用性的差异。展望了该领域仍待深化的方向。
英文摘要：
The forms of organic pollutant in soils could be fractionated into the extractable residue and bound residue. The toxicity and availability of these two fractions of organic contaminants differ greatly. It seems unreasonable to evaluate the environmental risk and remediation efficiency of organic pollutants basing on the single parameter of its total amounts in soils. In this paper, the residue and its fraetionations of organic pollutants as well as its transformation in soils were elucidated. The availabilities of the extractable residue and bound residue of organic chemicals in soils were compared. Concerns on the research in this field in future were elucidated.
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