水土保持研究2024，Vol.31Issue(2)：310-320,11.DOI:10.13869/j.cnki.rswc.2024.02.038
植被覆盖度对生态脆弱性动态演变的影响
The Influence of Vegetation Coverage on the Dynamic Evolution of Ecological Vulnerability:A Case Study of Zhangjiakou,Hebei Province
摘要
Abstract
[Objective]To study the influence of regional vegetation coverage changes on the spatial and tem-poral evolution of ecological vulnerability can provide scientific basis and useful reference for regional ecologi-cal protection,rational development and utilization of resources,optimization of land pattern and sustainable development.[Methods]Zhangjiakou region was taken as an example.The spatial and temporal evolution characteristics of ecological vulnerability in Zhangjiakou region were firstly explored by using the sequential relationship method,CRITIC method and game theory combination weighting method,and then the influ-ence of vegetation coverage changes on the dynamic evolution of ecological vulnerability was explored on this basis.[Results]From 2010 to 2019,the ecological vulnerability of Zhangjiakou region rose and then fell,with higher vulnerability areas concentrating in the northern dam and the central and western regions,and lower vulnerability areas distributing in the eastern and southern regions,and the spatial clustering effect was obvious.The vegetation coverage changes from low to high level during the 9 years,the area of vegeta-tion improvement zone increases by 7 807.77 km2 and the area of deterioration zone decreases by 3 433.14 km2.The deterioration zone was mainly located in the central urban area and the eastern area of Zhangjiakou,while most of the remaining areas were vegetation improvement zones.The changing trends and spatial distribution patterns of vegetation improvement areas,deterioration areas and ecological vulnerability increase and decrease areas were basically consistent.[Conclusion]The vegetation coveragre of Zhangjiakou area is closely related to ecological vulnerability,and a negative correlation is shown between them.The increase of vegetation coveragre can maintain water and soil,increase biodiversity,and improve the anti-disturbance ability of the ecosystem,thus reducing the ecological vulnerability of Zhangjiakou area.关键词
生态脆弱性/张家口地区/博弈论组合赋权法/植被覆盖度/土地利用类型Key words
ecological vulnerability/Zhangjiakou region/game theory combination weighting/vegetation coverage/land use type分类
农业科技引用本文复制引用
武帅,田冰,顾世杰,杨洛祺,胡引翠..植被覆盖度对生态脆弱性动态演变的影响[J].水土保持研究,2024,31(2):310-320,11.基金项目
国家社会科学资助项目(20BJY047) （20BJY047）
2022年河北省研究生示范课程(15117544) （15117544）
河北师范大学科技类重大专项基金(13117079) （13117079）
