Study of Soil Water Redistribution in Sloping Cultivated Land

ZHANG Yan-jun; WEI Yong-xia

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Study of Soil Water Redistribution in Sloping Cultivated Land

- Study of Soil Water Redistribution in Sloping Cultivated Land
- Bulletin of Soiland Water Conservation Vol. 27, Issue 5, Pages: 91-94(2008)
- 作者机构：
  
  东北农业大学水利与建筑学院,黑龙江,哈尔滨,150030
- 作者简介：
- 基金信息：
- DOI：
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- Published：2008
- 稿件说明：
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ZHANG Yan-jun, WEI Yong-xia. Study of Soil Water Redistribution in Sloping Cultivated Land[J]. Bulletin of Soiland Water Conservation, 2008, 27(5): 91-94.
DOI：

ZHANG Yan-jun, WEI Yong-xia. Study of Soil Water Redistribution in Sloping Cultivated Land[J]. Bulletin of Soiland Water Conservation, 2008, 27(5): 91-94. DOI：

摘要

通过对坡耕地降雨后0—100 cm土壤含水量消退过程进行分析。结果表明

对于不同耕作措施

降雨后土壤水分再分布动态变化规律相似

即土壤水分入渗后

表层0—10 cm内土壤含水率急剧降低;20—60 cm的土壤含水率开始有增大的趋势

随后逐渐减小;60 cm以下的土壤含水率略有变化。不同耕作措施对土壤水分再分布动态变化规律的影响不尽相同

覆膜垄向区田措施保水效果最好

裸地最差。

Abstract

Soil water declining process in 0—100 cm soil layer in a sloping field after rainfall was analyzed.Results indicated that soil water redistributions for different cultivations appeared similarly and the content of soil water within 10 cm of soil surface quickly decreased after infiltration.The content of soil water in 20—60 cm soil layer increased at the beginning and then decreased.The content of soil water below 60 cm changed appreciably.Soil water redistribution was affected differently by varied cultivations.Water retaining effects of film mulching were best in ridge tillage and worst in bared field.

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