A Study on Dynamics of Soil Moisture of Soil Prof ile in Black Soil

ZOU Wen-xiu; HAN Xiao-zeng; WANG Shou-yu; LI Liang-hao; WANG Feng-ju

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A Study on Dynamics of Soil Moisture of Soil Prof ile in Black Soil

- A Study on Dynamics of Soil Moisture of Soil Prof ile in Black Soil
- Bulletin of Soiland Water Conservation Vol. 28, Issue 3, Pages: 130-132(2009)
- 作者机构：
  
  1. 中国科学院东北地理与农业生态研究所,黑龙江,哈尔滨,150081
  2. 中国科学院研究生院,北京,100049
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2009
- 稿件说明：
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ZOU Wen-xiu, HAN Xiao-zeng, WANG Shou-yu, et al. A Study on Dynamics of Soil Moisture of Soil Prof ile in Black Soil[J]. Bulletin of Soiland Water Conservation, 2009, 28(3): 130-132.
DOI：

ZOU Wen-xiu, HAN Xiao-zeng, WANG Shou-yu, et al. A Study on Dynamics of Soil Moisture of Soil Prof ile in Black Soil[J]. Bulletin of Soiland Water Conservation, 2009, 28(3): 130-132. DOI：

摘要

通过对2007年5—9月作物生长季内农田黑土土壤剖面水分含量的监测，分析了黑土区土壤剖面水分分布特征，季节性动态变化和变异系数。结果表明，在观测期内农田黑土水分在剖面上随土层深度的增加呈现出先增加，再减少，后增加的趋势；土壤剖面各土层土壤水分含量随时间的变化表现为先减小，后增加，再减小的波浪式，这与降雨量的季节性分布和作物生长发育密切相关；在观测期内没有发现激变层，土壤水分变异系数的最大值出现于0—10 cm，随着土层深度的增加变异系数呈减小的趋势。

Abstract

Soil moist ure of soil profile(0—210 cm)in a black soil during crop growth(May to September)was monitored.Distribution characteristics of soil moisture of soil profile

seasonal dynamic variation

and variation coefficient were analyzed.Results showed that the variation of soil moisture in the soil profile had an "increasing-decreasing-increasing"trend with soil depth increasing in observation period.Soil moisture in each layer presented a"decreasing—increasing—decreasing"trend with time increasing and it was closely related with rainfall and crop growth.The acute change layer was not found in observation period.The biggest variation coefficient of soil moisture was observed within 10 cm of surface soil and the variation coefficient decreased with soil depth increasing.

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