PROFILE CHARACTERISTICS OF A CLAY SOIL UNDER HEAVY AXLE LOAD COMPACTION

被引：3

作者：

GAMEDA, S

RAGHAVAN, GSV

MCKYES, E

MEHUYS, GR

WATSON, A

DUVAL, J

机构：

[1] MCGILL UNIV,MACDONALD COLL,DEPT RENEWABLE RESOURCES,ST ANNE BELLEVUE H0A 1C0,QUEBEC,CANADA

[2] MCGILL UNIV,MACDONALD COLL,DEPT PLANT SCI,ST ANNE BELLEVUE H0A 1C0,QUEBEC,CANADA

来源：

SOIL & TILLAGE RESEARCH | 1994年 / 29卷 / 2-3期

关键词：

D O I：

10.1016/0167-1987(94)90056-6

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Soil profile characteristics were determined in plots subjected to annual compaction, subsoiling and chemical conditioning. Treatments significantly affected profile characteristics. Ped size, ped type and rooting depth exhibited the greatest differences after treatment. Soil structure in compacted plots consisted of medium- to coarse-sized, angular, blocky peds with the least aggregate distinction, the greatest strength and the shallowest rooting depths. Subsoiling was effective in improving subsoil structure but was detrimental to the topsoil because of tractive forces. Chemical conditioning was marginally effective in improving the soil structure of uncompacted plots, but was detrimental in compacted plots.

引用

页码：189 / 194

页数：6

共 10 条

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