Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : Study on the Evolution of Groundwater Environment in Semi-arid Region——A Case Study of Shuangliao City

Auteur : 张芷豪

Grade : Doctoral Dissertation 2022

Université : Université de Jilin

Résumé partiel
Groundwater is an important part of water resources in arid and semi-arid areas.In recent years,with the intensification of human activities,the groundwater environment has been damaged and brought about a series of environmental problems.Therefore,it is of great theoretical and practical significance to carry out relevant research on the evolution of groundwater environment in semi-arid areas for correctly handling the relationship between humans and nature,scientifically planning and protecting groundwater resources,and realizing the improvement and sustainable development of groundwater environment in semi-arid areas.This paper is based on the project "Regional Water Resources Survey Method and Groundwater Ecological Threshold Survey" of Shenyang Geological Survey Center,China Geological Survey（No.DD20190340-W09）and "Groundwater Resources Investigation and Evaluation of Shuangliao City".Taking Shuangliao as an example to study the evolution of the groundwater environment in a semi-arid region.A research system of groundwater environment evolution in semi-arid regions is constructed,including "groundwater environment assessment-spatio-temporal evolution– evolution pattern-regulation".The DAPSIR groundwater environment assessment system including Drivers（D）,Activities（A）,Pressures（P）,States（S）,Impacts（I）,and Responses（R）was constructed and the groundwater environment was evaluated by it.Based on spatial analysis and spatial statistics,the spatial and temporal evolution of the groundwater environment and its influencing factors are revealed.The evolution pattern of the groundwater environment is divided by the coupling coordination model and decoupling model,and the evolution mechanism of different evolution patterns was studied by the partial least squares structural equation model.The regulation of groundwater environment evolution is studied by groundwater numerical simulation.The main results are as follows :（1）A groundwater environment evolution research system integrating "groundwater environment assessment-spatio-temporal evolution-evolution patternregulation" in semi-arid areas has been constructed

Mots clés : Groundwater environment ;Evolution of groundwater environment ;Evolution pattern ;Semi-arid area ;Western Jilin province ;

Présentation (CNKI)