Coupled analysis of spatio-temporal variability of groundwater depth and soil salinity in Keriya Oasis
In arid oasis plains,the depth of groundwater varies with the season,which makes the discretion of the soil salt produced variations,the groundwater depth and soil salt differentiation in time and space is obvious,and there is a high degree of interaction between the coupling relationship.In order to study the coupling mechanism of the depth of the groundwater and soil salt,realizing the period of time,area for the comprehensive utilization of groundwater and effective governance for the soil salinizatio(n),the paper chose the Keriya Oasis,South Xinjiang,China,as the study area,and 20 points of the groundwater and 8 points of soil salt were monitored for a long time and continuous monitoring data were got.With.some classical statistical methods,statistical analysis and GIS in the study area,the paper analyzed the groundwater depth and soil salt of spatio-temporal variability rules and the coupling coefficient model,calculated by the coupling between them.The results show that the embedded depth of groundwater is deeper in the summer half year,shallow in winter half year,especially in northwest,deep in southeast,increased from the northwest to the southeast.Soil salt content is higher in summer half year and lower in winter half year,from west to east of diminishing distribution.Interaction between groundwater depth and soil salt content of the coupling relationship,both the coupling of the mean by coupling model calculation is in 0.7 above,the coupling degree is higher,and it is convenience for monitoring the groundwater depth and soil salt content in future.The effective measures to alleviate soil salinization,increase crop yield,increase the economic income and improve living standards quality,need to strengthen the groundwater management,reasonable control the buried depth.The result of the paper is basically identical with the predecessors'studying,which may reflect the actual situation of the study area truly,and also make it more content to monitor the depth of groundwater and the salt of soil.
Keriya Oasisdepth of groundwatersoil salinityspatio-temporal variabilitycoupled relation
国家科技期刊平台
NSTL
万方数据
维普
