Research on Spatiotemporal Optimization Allocation of Water and Soil Resources in Irrigation Areas Based on the Evaluation of Water and Soil Resource Carrying Capacity
The study takes a typical irrigation district in Guizhou province as an example,and utilizes system dynamics and pressure-state-response modeling to establish an evaluation method for the carrying capacity of soil and water resources.The validation analysis shows that the carrying status of soil and water resources of the irrigation area in 1996,2004,2012 and 2020 are mild,approaching,approaching and stable,respectively.The results indicate that the evaluation system proposed in the study is reasonable and feasible for analyzing the carrying capacity of water and soil resources in irrigation areas.The carrying status of water and soil resources in irrigation areas shows positive changes in space,but the rate of change slows down,and the severe and mild carrying areas gradually transition towards salinization and alkalization in spatial distribution.
evaluation of carrying capacity of soil and water resourcesoptimization of spatial and temporal allocation of soil and water resourcessystem dynamicsmultilevel fuzzy theorypressure-state-response models