Physical properties of tilled soils

被引：63

作者：

Dexter, AR ^{[1
]}

机构：

[1] Silsoe Res Inst, Bedford MK45 4HS, England

来源：

SOIL & TILLAGE RESEARCH | 1997年 / 43卷 / 1-2期

关键词：

soil aeration; soil water; soil strength; soil stability; soil structure; soil physics;

D O I：

10.1016/S0167-1987(97)00034-2

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

The key areas of soil physics: structure, water, aeration, and strength and stability are discussed. Recent developments in experimental techniques and theory are reviewed. In addition, some older research is discussed where it is thought to be worthy of re-examination. It is concluded that for studies of tilled and other structured soils, measurements of bulk density and gravimetric water content are not ideal, and a system based on specific volumes and voids ratios is proposed. Soil structure or spatial heterogeneity dominates all the physical properties of soil and hence, its functioning. For research of agriculture and environmental problems, it is essential to characterize the soil structure if we are to develop the improved understanding of soil which is necessary for its proper management. (C) 1997 Elsevier Science B.V.

引用

页码：41 / 63

页数：23

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