EVALUATION OF SOIL AGGREGATE SURFACE ROUGHNESS BY IMAGE ANALYSIS

被引：5
|
作者：
Bryk, Maja [1 ]
机构：
[1] Uniwersytet Przyrodniczy Lublinie, Inst Gleboznawstwa Inzynierii & Ksztaltowania Sro, Ul Leszczynskiego 7, PL-20069 Lublin, Poland
来源：
SOIL SCIENCE ANNUAL | 2012年 / 63卷 / 02期
关键词：
image analysis; aggregate surface; roughness; soil texture; TOC;
D O I：
10.2478/v10239-012-0016-1
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
Aggregates measuring 7-10 mm sifted from four soils: Haplic Luvisol (silt), Rendzic Leptosol (clay loam), Rendzic Phaeozem (clay loam), and Gleyic Phaeozem (silty clay), were used to obtain aggregate structure models in the form of opaque polished blocks. By means of image analysis, the ratio of the perimeter to a minimum bounding ellipse perimeter of an aggregate cross-section was calculated to characterize the roughness of an aggregate surface. The mean value of the parameter ranged from 1.352 (LVha, smoother surface), 1.730 (PHgl, medium - rough surface), and 1.770 (LPrz, medium - rough surface) to 1.939 (PHrz, rougher surface) and was higher for the soils having larger quantity of sand sub-fraction (0.1-2 mm), clay fraction and soil organic matter.
引用
收藏
页码：9 / 13
页数：5
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