On available forms of chemical compounds in soils

被引：0
|
作者：
T. I. Siromlya
机构：
[1] Siberian Branch of the Russian Academy of Sciences,Institute of Soil Science and Agrochemistry
来源：
Contemporary Problems of Ecology | 2009年 / 2卷
关键词：
soil; chemical elements; forms of compounds; fractions; availability; extractants;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Different methods are used to study available forms of chemical compounds in soils. The sequential extraction method is described in detail. Also, a comparative overview is given of the most frequently extracted fractions of chemical elements (water-soluble, exchangeable, specifically sorbed, carbonate, bonded to organics, Fe and Mn oxides/hydroxides, and aluminosilicates), as well as of relevant extractants. Advantages and disadvantages of various extractants are discussed, and ways to improve their selectivity are proposed. It is also shown that the content of available forms of chemical compounds in soil can be used for estimating the extent of industrial soil pollution.
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页码：678 / 685
页数：7
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