Spatial Heterogeneity of Soil Moisture under Larix principis-rupprechtii on Guandishan Mountain,Shanxi,China

This paper choose the country level nature protection area Shanxi Province Pangquangou Nature Reserve as the study state,and use semivariance analysis of geostatistics to test for differences in the spatial Heterogeneity of different level soil moisture under Guandishan secondary forest.The result showed that:In the research area,there is a tendency towards decreasing of the top soil moisture with the soil depth.when achieves the certain depth(20cm),the soil moisture content not only does not reduce,instead appears the increasing tendency.Semivariogram analysis demonstrated that with the increasing of research criterion,the spatial autocorrelation of soil moisture content improve;and with increasing of the soil depth,the R2 improv but the spatial patchiness reduce,the random distribution of soil moisture content reduce,the proportion of spatial variation which causes by the random factor in the all spatial Heterogeneity reduce.Looked from the spatial pattern that,A(0~10cm) level soil moisture content mainly assumes the massive distribution,and the shape is more complex,b(10~20cm) and c(20~30cm) level assumes the belt-shaped distribution,and the shape is consistent.