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《Bulletin of Soil and Water Conservation》 2014-06
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Heterogeneous Characteristics of Soil Moisture of Different Vegetation Types in Loess Hilly Regions

LIU Geng;NIU Jun-jie;ZHU Wei-xin;SHI Jian-wei;LIANG Hai-bin;Research Center for Scientific Development in Fenhe River Valley,Taiyuan Normal University;Institute of Loess Plateau,Shanxi University;  
The spatio-temporal heterogeneity of soil moisture in Kelan County,Northwestern Shanxi Province was studied in wasteland,Caragana korshinskii forest land and Populus simonii forest land.The soil moisture was determined for the 0—600cm profile in April,May,June and July.Results showed that:(1)Soil moisture changed between 3.34%~17.19% with irregular variation in the layer of 0—200cm;However,as the soil depth increased from 200 to 600cm,the soil moisture of wasteland was increasing,the soil moisture of Caragana korshinskii forest land was decreasing gently and the soil moisture of Populus simonii.forest land decreased at first and then increased gently,respectively.(2)The profile distribution of soil moisture had a significant difference(p0.01)within different months and different land use types.(3)The variation coefficient of soil moisture was usually in the range of 0~30%,but some individual values are over 50%,suggesting that the structure of soil moisture presented overall stability except special points.
【Fund】: 国家自然科学基金项目“晋西北生态重建优势种林地土壤水分研究:以沙棘和柠条为例”(41171423) “顾及污染物向异性特征的土壤有机污染物三维空间分布预测方法研究”(41401236)
【CateGory Index】: S152.7
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