有机肥对土壤重金属生物有效性影响研究进展

Research Progress of the Effects of Organic Fertilizeron Bioavailability on Heavy Metals in Soils

随着土壤重金属污染的日益严重,土壤重金属污染问题受到人们广泛关注。如何降低土壤重金属毒害,是现今需要研究的重要问题,而重金属生物有效性是所需研究的重要指标。施肥和耕作方式对重金属生物有效性的影响已有很多研究,但关于有机肥对重金属生物有效性的影响研究还比较少。本文参考了近年来关于有机肥与土壤重金属的相关文献,对土壤重金属生物有效性的概念,生物有效性的影响因素以及有机肥对土壤重金属生物有效性的影响进行了归纳总结,并对今后开展有机肥与土壤生物有效性的研究提出了展望。

With the increasing concern of soil heavy metal pollution, it is necessary to do the research on reducing the heavy metal toxicity of soil, while the bioavailability of heavy metals is an important index for researching. There were many researchers have done the researches on the effects of fertilization and tillage on bioavailability of heavy metals, however only a few have been focusing on the effect of organic fertilizer.This dissertation have referenced many literatures in relation to organic fertilizer and soil heavy metals in recent years, the conception of soil heavy metals bioavailability, and the related infecting factors of bioavailability, as well as the effects of fertilization on bioavailability of heavy metals was conelused. It also gave a conceivable prospect of relationship between organic fertilizer and the soil bioavailability to improve the research on organic fertilizer and soil heavy metals bioavailability.