河北水利电力学院学报2026，Vol.36Issue(3)：1-5,17,6.DOI:10.16046/j.cnki.issn2096-5680.2026.03.001
灌排单元土壤盐分与地下水埋深的时空动态变化及其定量关系研究
The Study of Temporal and Spatial Dynamics and Their Quantitative Relationship of Soil Salinity and Groundwater Depth in Irrigation and Drainage Units
摘要
Abstract
The Hetao Irrigation Area in Inner Mongolia is a typical salinized irrigation area in the upper reaches of the Yellow river.Aiming at the problem of soil salinity in Hetao Irrigation District,a typical ir-rigation and drainage unit in Jiefangzha Irrigation Subdistrict are taken as the research object.Using classical statistics and geostatistical methods,combinedwith GIS,this study analyzes the spatiotemporal variation characteristics of soil EC value and the impact of groundw-ater on soil salt distribution.The results show that the EC value of different soil layers in the study area shows moderate variation characteristics at different stages.The soil salinity in the beginning and middle of typical irrigation and drainage unit is relatively higher,while the salinity in the end and southeast areas is relatively low and shows an overall trend of decreasing towards the southeast and north.There is a strong spatial similarity in the distribution of salt content in each soil layer,and as the depth of the soil layer in-creases,the salt content also shows a decreasing trend.The soil salinity decreases with the increase of groundwater depth,and the two satisfy an exponential relationship.Based on the salt tolerance of crops,the impact on the main crops is relatively small and will not cause a reduction in yield.关键词
河套灌区/灌排单元/土壤盐分/地下水埋深Key words
Hetao Irrigation District/irrigation and drainage unit/soil salinity/groundwater depth分类
农业科技引用本文复制引用
张文聪,高新鹤,张秀红,史海滨..灌排单元土壤盐分与地下水埋深的时空动态变化及其定量关系研究[J].河北水利电力学院学报,2026,36(3):1-5,17,6.基金项目
河北水利电力学院基本科研业务费项目(SYKY2208) （SYKY2208）
沧州市自然科学基金项目(23241002015N) （23241002015N）
