作　　者： (卢龙辉）; (瓦哈甫）; (彭菲）; (张琴琴）; (袁玉芸）;

机构地区： 新疆大学资源与环境科学学院,乌鲁木齐830046

出　　处： 《中国农业科技导报》 2017年第9期128-136,共9页

摘　　要： 通过对特定区域由点至面的预测,进而研究典型干旱区绿洲浅层地下水特征与表层土壤特征的空间分布变化规律及两者相互影响,对干旱区水土关系的科学认识具有重要意义。根据最优的空间插值预测方法对克里雅绿洲整体的浅层地下水特征与表层土壤特征(地下水埋深、电导率、水温,表层土壤含水率、电导率、土温)进行预测,并在全局尺度上对以上的水土指标进行相关性研究。结果表明:(1)克里雅绿洲区域地下水埋深主要在3 m以下,地下水电导率主要在5 mS/cm以下,地下水温度主要在15℃以下,表层土壤含水量主要在50%以下,表层土壤电导率主要在2.5 mS/cm以下,表层土壤温度主要在13℃以下,浅层地下水特征与表层土壤特征的空间分布均呈现一定的变化规律。(2)浅层地下水特征与表层土壤特征间均具有空间与统计相关性,地下水电导率与表层土壤盐分的线性回归拟合结果最好(R^2=0.721 8),回归方程为y=0.144x+0.172 1,可以作为实际预测中的参考依据。 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 （R^2= 0.721 8）.The equation y = 0.144x＋0.172 1 can be a reference frame in practical prediction.

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