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[1]WANG Peng,ZHAO Wei,KE Xinli.Evaluation and Spatiotemporal Evolution of Ecological Vulnerability of Qianjiang Based on SRP Model[J].Research of Soil and Water Conservation,2021,28(05):347-354.

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Evaluation and Spatiotemporal Evolution of Ecological Vulnerability of Qianjiang Based on SRP Model

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 28 Number of periods: 2021 05 Page number: 347-354 Column: Public date: 2021-08-20

Title:: Evaluation and Spatiotemporal Evolution of Ecological Vulnerability of Qianjiang Based on SRP Model

Author(s):: WANG Peng,ZHAO Wei,KE Xinli; (College of Public Administration,Huazhong Agricultural University,Wuhan 430070,China)

Keywords:: ecological vulnerability; geo-informatic spectrum; space principal component analysis; kilometer grid; Qianjiang City

CLC:: X826

DOI:: -

Abstract:: In order to explore the ecological vulnerability of city in Central China,14 indicators were selected based on Ecological Sensitivity-Ecological Recovery-Ecological Pressure(SRP)model,and spacial principal component analysis and geo-informatic spectrum method were employed. A case study of Qiangjiang was carried out to assess its ecological vulnerability as well as spatio-temporal evolution from 2008 to 2017 on the kilometer-grid scale. The results show that:(1)the ecological vulnerability of Qianjiang was influenced by human activities and natural conditions,and the influence of human activities was gradually strengthening during the period;(2)from 2008 to 2017,areas of slight and light vulnerability accounted for about 70% of Qianjiang,indicating that the overall ecological vulnerability kept at a good level; the areas of severe,strong,moderate,light and slight vulnerability distributed in circles from the center of urban built-up;(3)during the research period,the ecological vulnerability of Qianjiang increased slightly; the index of ecological vulnerability increased for most towns,but it decreased by 0.32 and 0.10 for Haokou and Taifeng; the TUPU with changing ecological vulnerability was summed to 1 176.40 km²,in which ‘light to moderate',‘slight to light',‘light to slight' and ‘moderate to strong' were the major transforms,with a percentage of 26.11%,22.38%,15.55% and 8.83%,respectively; as the top rising and top falling TUPU,the moderate vulnerability increased by 410.52 km²and the light vulnerability reduced by 556.77 km². These results could provide useful help for the protection and restoration of ecological environment in the study area.

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Last Update: 2021-08-20