潘庄引黄灌区土壤盐分空间变异特征及影响因素  

Spatial Variation Characteristics and Influencing Factors of Soil Salinity in Panzhuang Irrigation Districts Along the Yellow River

作　　者：赵龙 王明森 赵文竹[4] 孙雨 刘健 ZHAO Long;WANG Mingsen;ZHAO Wenzhu;SUN Yu;LIU Jian(School of Water Conservancy and Environment,University of Jinan,Jinan 250022,Shandong,China;Water Resources Research Institute of Shandong Province,Jinan 250014,Shandong,China;Shandong Province Key Laboratory of Water Resources and Environment,Jinan 250014,Shandong,China;Water Diversion Project Maintenance Center of Shandong Province,Jinan 250100,Shandong,China)

机构地区：[1]济南大学水利与环境学院,山东济南250022 [2]山东省水利科学研究院,山东济南250014 [3]山东省水资源与水环境重点实验室,山东济南250014 [4]山东省调水工程维护中心,山东济南250100

出　　处：《济南大学学报（自然科学版）》2024年第6期690-696,共7页Journal of University of Jinan(Science and Technology)

基　　金：国家自然科学基金联合基金项目(U22A20555)。

摘　　要：针对引黄灌区土壤次生盐渍化等问题,以山东省潘庄引黄灌区为例,通过野外分层取样与室内实验获取研究区土壤盐分数据,运用地理信息系统和地统计学相结合的方法分析研究区土壤含盐量的空间变异特征,研究土壤盐分空间分布的规律,采用地理探测器分析影响研究区土壤盐分分布的主要因素。结果表明:从剖面尺度来看,研究区土壤盐分整体呈现两端聚集型的分布特征,表层、中层和底层土壤的盐分含量均处于中等变异水平,其中底层土壤含盐量的变异系数为0.811,变异性最强;在空间尺度上,研究区土壤含盐量呈现从东北、西南区域向中部区域明显增加的趋势;研究区土壤盐分分布与高程、含水率和酸碱度的相关性较强,各影响因素交互作用后对研究区土壤盐分空间分布解释力均有不同程度的增强。Aiming at the problems of soil secondary salinization in the irrigation region of the Yellow River,taking Panzhuang Irrigation Districts Along the Yellow River of Shandong Province as the example,soil salinity data in the study area were obtained by field stratified sampling and laboratory test.The spatial variation characteristics of soil salinity content in the study area were analyzed by the combination method of geographic information system and geostatistics,and the law of spatial distribution of soil salinity was studied.The main factors affecting the distribution of soil salinity in the study area were analyzed by geographic detectors.The results show that,from the profile scale,the overall distribution of soil salinity in the study area shows the distribution characteristics of two-end aggregation.The salinity content of surface,middle and bottom soils are at moderate variation levels,and the coefficient of variation of salinity content in the bottom is 0.811,which is the most variable.At the spatial scale,soil salinity increases significantly from the northeast and southwest areas of the study area to the middle of the study area.The correlation between soil salinity distribution and elevation,soil water content and pH in the study area are stronger.After the interaction of various influencing factors,the explanatory power of soil salinity spatial distribution in irrigated area is enhanced to different degrees.

关 键 词：土壤盐分 空间变异特征 影响因素 潘庄引黄灌区 

分 类 号：S151.9[农业科学—土壤学]