该文采用定位观测和谐波分析的方法对黄家二岔小流域土壤水分空间分布特征进行了研究．结果表明： 无论何种降雨年型， 流域内中游地段土壤含水量最高， 下游地段土壤含水量高于上游， 坡下部的高于坡上部， 阴坡高于阳坡． In this paper, the spatial distribution characteristics of soil moisture in Huangjian-Ercha Catchment were studied by means of orientation observation and harmonic analysis. The results show that no matter what type of rainfall, the soil water content in the middle and middle reaches of the basin is the highest, the soil moisture content in the lower reaches is higher than that in the upper reaches, and the lower slope is higher than the upper slope. The shady slope is higher than the sunny slope.