【摘要】：通過(guò)對(duì)特定區(qū)域由點(diǎn)至面的預(yù)測(cè),進(jìn)而研究典型干旱區(qū)綠洲淺層地下水特征與表層土壤特征的空間分布變化規(guī)律及兩者相互影響,對(duì)干旱區(qū)水土關(guān)系的科學(xué)認(rèn)識(shí)具有重要意義。根據(jù)最優(yōu)的空間插值預(yù)測(cè)方法對(duì)克里雅綠洲整體的淺層地下水特征與表層土壤特征(地下水埋深、電導(dǎo)率、水溫,表層土壤含水率、電導(dǎo)率、土溫)進(jìn)行預(yù)測(cè),并在全局尺度上對(duì)以上的水土指標(biāo)進(jìn)行相關(guān)性研究。結(jié)果表明:(1)克里雅綠洲區(qū)域地下水埋深主要在3 m以下,地下水電導(dǎo)率主要在5 mS/cm以下,地下水溫度主要在15℃以下,表層土壤含水量主要在50%以下,表層土壤電導(dǎo)率主要在2.5 mS/cm以下,表層土壤溫度主要在13℃以下,淺層地下水特征與表層土壤特征的空間分布均呈現(xiàn)一定的變化規(guī)律。(2)淺層地下水特征與表層土壤特征間均具有空間與統(tǒng)計(jì)相關(guān)性,地下水電導(dǎo)率與表層土壤鹽分的線性回歸擬合結(jié)果最好(R~2=0.721 8),回歸方程為y=0.144x+0.172 1,可以作為實(shí)際預(yù)測(cè)中的參考依據(jù)。
[Abstract]:Through the prediction from point to surface in a specific area, the spatial distribution and variation of shallow groundwater characteristics and surface soil characteristics in typical arid areas and their interaction are studied, which is of great significance to the scientific understanding of soil and water relationship in arid areas. According to the optimal spatial interpolation prediction method, the characteristics of shallow groundwater and surface soil (groundwater depth, conductivity, water temperature, surface soil moisture content, conductivity, soil temperature) of Kriya oasis are predicted, and the correlation of the above soil and water indexes is studied on the global scale. The results show that: (1) the groundwater depth is less than 3 m, the groundwater conductivity is below 5 mS/cm, the groundwater temperature is below 15 鈩，

本文編號(hào)：2528118