[1]Wu Shuai,Tian Bing,Gu Shijie,et al.The Influence of Vegetation Coverage on the Dynamic Evolution of Ecological Vulnerability: A Case Study of Zhangjiakou, Hebei Province[J].Research of Soil and Water Conservation,2024,31(02):310-320.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 02
Page number:
310-320
Column:
Public date:
2024-03-20
- Title:
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The Influence of Vegetation Coverage on the Dynamic Evolution of Ecological Vulnerability: A Case Study of Zhangjiakou, Hebei Province
- Author(s):
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Wu Shuai1,2,3, Tian Bing1,2,3, Gu Shijie1,2,3, Yang Luoqi1,2,3, Hu Yincui1,2,3
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(1.School of Geographical Sciences, Hebei Normal University, Shijiazhuang 050024, China; 2.Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change, Shijiazhuang 050024, China; 3.Hebei Key Laboratory of Environmental Change and Ecological Construction, Shijiazhuang 050024, China)
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- Keywords:
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ecological vulnerability; Zhangjiakou region; game theory combination weighting; vegetation coverage; land use type
- CLC:
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Q948; X171
- DOI:
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- Abstract:
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[Objective] To study the influence of regional vegetation coverage changes on the spatial and temporal evolution of ecological vulnerability can provide scientific basis and useful reference for regional ecological 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 influence 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 vegetation 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.