于田绿洲土壤含盐量与地下水关系分析

Analysis on the Relation between Soil Salt Content and Groundwater in Yutian Oasis

在潜水蒸发强烈的干旱区,土壤含盐量与地下水埋深和矿化度有着密切的关系,确定地下水埋深和矿化度与土壤各土层含盐量的关系,有助于排水系统设计和地下水管理。根据于田绿洲实测土壤含盐量、地下水埋深及矿化度资料,分析了地下水埋深和矿化度对土壤含盐量的影响。研究结果表明,在干旱区土壤含盐量与地下水埋深和矿化度存在显著的指数相关关系,并建立了表层、20、40、60cm土层土壤含盐量与地下水埋深和矿化度三者之间的经验公式。为盐渍化治理和地下水管理提供指导。

Soil salt content has a close relation with the groundwater depth and the mineralization degree in the arid areas in which the evaporation of groundwater is very strong. It is helpful for drainage system design and groundwater management to decide the relation between groundwater depth and mineralization degree and soil salt content. Based on the measured soil salt content, groundwater depth and mineralization degree in Yutian Oasis, the influence of groundwater on soil salt content was analyzed. The results showed that the soil salt content has significant index correlation with the groundwater depth and the mineralization degree in arid areas. The empirical formula between the soil salt content and the groundwater depth and the mineralization degree in soil 0 cm, 20 cm,40 cm,50 on depth were established.This will provide guidance for salinization control and groundwater management.