摘要
以2008、2014和2020年3期Landsat TM/OLI遥感影像为数据源,采用时间序列和一元线性回归方法分析银川平原区域土壤盐渍化时空分布的规律,结合灰色关联度分析法和地理探测器分析法分析研究区土壤盐渍化的驱动因子.结果表明:(1)银川平原整体土壤盐渍化呈现改善趋势,空间格局变化明显.2008—2020年期间,银川平原土壤盐渍化指数平均值从0.914降低到0.788,其中土壤盐渍化改善区域面积占总面积的36.76%.(2)土地利用强度是银川平原土壤盐渍化的主要影响因素,地下水矿化度和埋深也会对研究区土壤盐渍化产生较大的影响.
The spatio-temporal distribution of soil salinization in Yinchuan Plain was analyzed by time series and linear re-gression method based on Landsat TM/OLI remote sensing images in 2008,2014 and 2020.The driving factors of soil saliniza-tion in the studied area were analyzed by grey relational analysis and geographical detector analysis.The results showed that:①The average soil salinization in Yinchuan Plain showed an improving trend,and the spatial pattern changed obviously.From 2008 to 2020,the average soil salinization in the plain decreased from 0.914 to 0.788,and the soil salinization improved area accounted for 36.76%of the total area.②Land use intensity was the main influencing factor of soil salinization in the Yinchuan Plain.The mineralization degree and burial depth of groundwater will also have a significant impact on soil salinization in the studied area.
作者
魏慧敏
贾科利
张旭
WEI Huimin;JIA Keli;ZHANG Xu(School of Geography and Planning,Ningxia University,Yinchuan 750021,China)
出处
《天津师范大学学报（自然科学版）》
CAS
北大核心
2023年第3期46-52,共7页
Journal of Tianjin Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(42061047)
宁夏回族自治区重点研发项目(2021BEG3002)。
关键词
土壤盐渍化
银川平原
驱动因子
灰色关联度分析
时空变化
soil salinization
Yinchuan Plain
driving factors
grey relational analysis
spatio-temporal change
