Influence of Dissolved Organic Matter On the Bio-Availability and Toxicity of Metals in Soils and
Aquatic Systems
x box期刊名称： Chemistry and Ecology
作者： D. Vaughan,D. G. Lumsdon,D. J. Linehan
年份： 1993年
期号： 第3期
关键词： aquatic systems;cations;complexation;DOM;humic
钝substances;nutrients;rhizosphere;root exudation
rideback摘要：Cations in soil are esntial for the growth of plants and micro-organisms. Their availability is dependent on soil organic matter. Soil organic matter (SOM) is heterogeneous comprising amino, aliphatic and phenolic acids, but particularly humic substances. All the substances can complex catio
小学病句类型ns lectively. Mechanisms of complexation with dissolved organic matter are discusd. Such complexation can lead to the apparently contradictory obrvations that dissolved organic matter (DOM) can either increa the concentration of some less soluble nutrients, making them more available for plant uptake, or make them less available and hence less toxic. the importance of DOM is discusd in relation to soil solution, particularly雪利
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the rhizosphere, and also in relation to aquatic systems. the latter systems contain mainly
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