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[1]FAN Xin-rui,SU Wei-ci,YAN Gui-quan,et al.Research on Soil Moisture Dynamic Changes in Typical Karst Regions[J].Research of Soil and Water Conservation,2009,16(02):156-159.

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Research on Soil Moisture Dynamic Changes in Typical Karst Regions

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 16 Number of periods: 2009 02 Page number: 156-159 Column: Public date: 2009-04-20

Title:: Research on Soil Moisture Dynamic Changes in Typical Karst Regions

Author(s):: FAN Xin-rui¹, SU Wei-ci^1,2,3, YAN Gui-quan², CAO Huan¹; 1. Resources and Environment Engineering Department of Guizhou University, Guiyang, 550003, China;
2. Guizhou Academy of Science, Guizhou, 550025, China;
3. Geography Department, Chongqing Normal University, Chongqing, 400047, China

Keywords:: karst regions; soil moisture; dynamic changes; coefficient of variation

CLC:: S152.7

DOI:: -

Abstract:: Dynamic changes of soil moisture in the karst areas desertification ecological rehabilitation and reconstruction process is of great significance.According to the slope at different seasons and through the 24 samples,the spatial distribution of soil moisture and variability are analyzed.The results showed that:surface soil moisture has a constant trend of decrease along the slope,and the moderate variation on the slope,but the difference of different slope is little.Soil moisture is higher at the slope bottom and top.Compared with the slope land,the seasonal impact on slope bottom soil is relatively smaller.The seasonal impact on the karst soil relatively large in the slope position and soil moisture coefficient of variation suddenly become larger in the rainy season,then became smaller with the continuation of the rainy season and reached the minimum at the late rainy season.The water content reached the largest value during April to August and the overall magnitude of changes with the rainfall submissions are proportional.

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