ORGANIC-MATTER ROLE IN ILLITIC SOIL COLLOIDS FLOCCULATION .3. SCANNING FORCE MICROSCOPY

被引：23

作者：

HEIL, D ^{[1
]}

SPOSITO, G ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT ENVIRONM SCI POLICY & MANAGEMENT,BERKELEY,CA 94720

来源：

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1995年 / 59卷 / 01期

关键词：

D O I：

10.2136/sssaj1995.03615995005900010042x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

In previous papers of this series, the flocculation of illitic colloids separated from Hanford sandy loam diminished with the presence of organic matter that can form coatings on soil colloids. The purpose of this study was to apply scanning force microscopy to image both geologic specimen illite and the Hanford (coarse-loamy, mixed, nonacid, thermic Typic Xerorthent) soil colloids directly to provide visual evidence of the coatings. Scanning force micrographs showed differences in particle morphology and surface features between the soil and the specimen illite particles that were not interpretable exclusively in terms of organic coatings but did indicate the presence of surface roughness that could inhibit flocculation of the soil illite particles.

引用

页码：266 / 269

页数：4

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