水土保持研究2012，Vol.19Issue(1)：51-55,5.
甘肃省金塔县天然胡杨林土壤含水量空间变化特征研究
Study on Spatail Variation of Soil Moisture in Natural Populus euphratica Forest Stand in Jinta County,Gansu Province
摘要
Abstract
The soil water was one of the factors restricting the growth of plants.The paper analyzed the spatial variation of soil water of natural Populus euphratica forest stand in Jinta County,Gansu Province by using the methods of coefficient of variation（Cv） and ArcGIS（Inverse Distance Weighted,IDW） interpolation.Soil water in SCCD decreased with the soil depth increasing.The soil water in the other 6 sample areas in the 0—60 cm layer decreased.In the 60—120 cm soil layer,the soil water in HSCD and GBLC layer kept on decreasing,while in DZZC,WXCD,NTWC,XHCD,the soil water started to increase.The average soil water in SCCD was the largest.The coefficient of variation of the soil water was obviously different in each layer and became larger with the increase of depth.The Populus euphratica grew better as the soil water increased.The soil water of horizontal direction in profile presented the similar characteristics of increase from west to east.This change was related with the topographical features of Beida river and Heihe river basin.The soil water along the horizontal direction in profile decreased with the distance away from water source.关键词
金塔/天然胡杨林/土壤含水量/空间变化Key words
Jinta County of Gansu Province/natural Populous euphratica forest stand/soil water content/spatial variability分类
农业科技引用本文复制引用
王洪岩,刘普幸,曹立国,卓玛兰草..甘肃省金塔县天然胡杨林土壤含水量空间变化特征研究[J].水土保持研究,2012,19(1):51-55,5.基金项目
国家自然科学基金项目 （）
