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China University of Mining and Technology (2021)

Study on Long-term Effects of Ground Deformation on Vegetation in Semi-arid Underground Mines

米家鑫

Titre : Study on Long-term Effects of Ground Deformation on Vegetation in Semi-arid Underground Mines

Auteur : 米家鑫

Grade : Doctoral Dissertation 2021

Université : China University of Mining and Technology

Résumé partiel
Degradation of vegetation in underground mines after ground deformation has attracted increasing concerns,however,there are still disagreements regarding the longterm effects of ground deformation on vegetation.A clear understanding in the mechanism of this phenomenon will benefit to a comprehensive decision-making between technical reclamation and natural restoration in mining area,which could reduce the cost of restoration and increase ecological resilience.Thus,it is extremely necessary to ascertain long-term effects on vegetation after mining activities,so as to provide a theoretical guidance for vegetation reconstruction in mining areas.To address these,Yungang mine,Datong City,Shanxi Province,was selected study area.Firstly,the basic data of ground deformation and vegetation were obtained by data collection,field survey and remote sensing.After that,logical reasoning and dynamic system modeling were applied to reveal the meachnism of long-term effects of ground deformation on vegetation.Then,mathematical modeling was used to construct the model and variables for evaluating long-term effects of ground deformation on vegetation.At last,a model for simulating long-term effects of ground deformation on vegetation was developed through system simulation methods.The aim of this dissertation is to demonstrate long-term effects of ground deformation on vegetation in semi-arid mines,and the objectives include revealing the mechanism of long-term effects of ground deformation on vegetation,and constructing models for evaluating and simulating long-term effects of ground deformation on vegetation,respectively.

Mots clés : ecological monitoring for mining area ;plant community succession ;ground deformation ;simulation model ;cellular automata ;semi-arid underground mine ;

Présentation (CNKI)

Page publiée le 15 février 2022