关键词: 典型干旱区, 克里雅绿洲, 浅层地下水特征, 表层土壤特征, 全局尺度统计

Abstract: Through prediction from point to surface in specific region, and studies on the spatial change regulation of shallow groundwater and surface soil characteristics, and their mutual effect in typical arid area, which had  important significance on water and soil relation in arid area. This paper used the optimal spatial interpolating predicting method to forecast the whole status of shallow groundwater and surface soil in Keriya oasis, including groundwater depth, electrical conductivity, temperature and surface soil moisture content, electrical conductivity, temperature, and conducted  correlation studies on all water and soil indexes at whole situation dimension. The results indicated that: ① In Keriya oasis, the groundwater depth was mainly under 3 m, groundwater EC under 5 mS/cm, groundwater temperature under 15℃, water content of surface soil under 50%, surface soil EC under 2.5 mS/cm, surface soil temperature under 13℃. The spacial distribution of shallow groundwater characteristics and surface soil characteristics all present certain change rule. ② Shallow groundwater characteristics and surface soil characteristics all have spatial and statistical correlation, groundwater conductivity and surface soil salinity have the best linear regression results (R2=0.721 8). The equation y=0.144x+0.172 1 can be a reference frame in practical prediction.

Key words: typical arid area, Keriya oasis, shallow groundwater characteristics, surface soil characteristics, overall situation dimension statistics