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STUDY ON THE PHYSICAL PROPERTIES OF KARST SOIL IN GUIZHOU WUJIANG RIVER BASIN
Author(s): 
Pages: 39-43
Year: Issue:  2
Journal: GUIZHOU SCIENCE

Keyword:  贵州乌江流域喀斯特土壤土壤物理性质;
Abstract: 本文分析研究了贵州乌江流域喀斯特土壤在不同植被类型和不同侵蚀程度条件下的土壤主要物理性质.认为:土壤侵蚀状况是影响土壤物理性质的主要因素,在土壤侵蚀不强烈的条件下,各种植被类型的土壤发育良好,土层深厚,表层有机质含量较高;土壤以粘壤土和粘土为主;土壤孔隙性适宜,土壤结构性良好,能有效的发挥保持水土的作用;但是已经受到水土流失的威胁,存在砂化的趋势.而土壤受强烈侵蚀的情况下,土壤各种物理性状极差.因此,必须采取措施进一步改善土壤物理性质.
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