Paramagnetic properties of humus acids of podzolic and bog-podzolic soils

被引：0
|
作者：
E. D. Lodygin
V. A. Beznosikov
S. N. Chukov
机构：
[1] Russian Academy of Sciences,Institute of Biology, Komi Scientific Center, Ural Division
[2] St. Petersburg State University,undefined
来源：
Eurasian Soil Science | 2007年 / 40卷
关键词：
Humic Acid; Fulvic Acid; EURASIAN Soil Science; Paramagnetic Center; Podzolic Soil;
D O I：
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中图分类号：
学科分类号：
摘要：
The contents of free radicals in preparations of humic and fulvic acids extracted from virgin and plowed podzolic, surface gleyic podzolic, and peaty podzolic-gleyic soils were determined. The concentration of paramagnetic centers in the humic acids was 1.5–2 times higher than that in the fulvic acids. The agricultural use decreases the paramagnetic activity of the humus compounds and promotes the accumulation of biothermodynamically stable organic compounds in the plow horizons.
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页码：726 / 728
页数：2
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