RELATIONSHIP BETWEEN SOIL ALIPHATIC FRACTION EXTRACTED WITH SUPERCRITICAL HEXANE, SOIL MICROBIAL BIOMASS, AND SOIL AGGREGATE STABILITY

被引：107

作者：

CAPRIEL, P ^{[1
]}

BECK, T ^{[1
]}

BORCHERT, H ^{[1
]}

HARTER, P ^{[1
]}

机构：

[1] TECH UNIV GARCHING, INST ANORG CHEM, W-8046 GARCHING, GERMANY

来源：

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1990年 / 54卷 / 02期

关键词：

D O I：

10.2136/sssaj1990.03615995005400020020x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

The influence of agricultural management on the quality and quantity of the aliphatic fraction extracted with supercritical n-hexane and the correlation between this fraction, soil biomass, and soil aggregate stability was investigated. High correlation coefficients were found between the aliphatic fraction and soil biomass (r = 0.91) and between the aliphatic fraction and soil aggregate stability (r = 0.91), indicating a close relationship between soil biochemistry and soil physics. It appears that the hydrophobic fraction extracted with supercritical hexane contributes considerably to the water stability of soil aggregates. The 13C nuclear magnetic resonance and Fourier-transform infrared spectra showed that the supercritical-hexane extracts corresponding to different managements were chemically similar.

引用

页码：415 / 420

页数：6

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