[1]ZHANG Ying,YANG Zhimou,CHEN Yuqi,et al.Land System Vulnerability Measurement and Its Spatial Differentiation in Guizhou Province[J].Research of Soil and Water Conservation,2019,26(05):249-257,264.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 05
Page number:
249-257,264
Column:
Public date:
2019-09-06
- Title:
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Land System Vulnerability Measurement and Its Spatial Differentiation in Guizhou Province
- Author(s):
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ZHANG Ying1,2,3, YANG Zhimou2, CHEN Yuqi1, ZHAO Yuluan2
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1. China Land Surveying and Planning Institute, Key Laboratory of Land Use, Ministry of Land and Resources, Beijing 100035, China;
2. School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang 550001, China;
3. Bijie No.4 High School, Bijie, Guizhou 551700, China
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- Keywords:
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land system vulnerability; PSR; spatial differentiation; Guizhou Province
- CLC:
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F301
- DOI:
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- Abstract:
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Using PSR model, spatial autocorrelation analysis, change slope analysis and other methods, we analyze the overall spatial distribution differences and local spatial differentiation characteristics of land system vulnerability pressure index, state index, response index and comprehensive index changes in Guizhou Province from 2000 to 2015. The results show that:(1) in general, from 2000 to 2015, the vulnerability index of the land system in Guizhou Province presented a trend of rising first and then decreasing, indicating that the land system vulnerability has reduced; the pressure and sensitivity of the land system increased, but the adaptability was significantly improving; (2) from the perspective of the change range of vulnerability for county, from 2000 to 2015, the vulnerability of land system in Guizhou Province on the whole was developing in a better direction; in terms of the change trend, the land system vulnerability for most of counties was stable or showed the decreasing trend to some extent; (3) in general, the Global Moran’s I values of the pressure index changes, state index changes, response index changes and comprehensive index changes of the land system in Guizhou Province from 2000 to 2015 were 0.154 2, 0.465 3, 0.154 1 and 0.160 2, respectively, indicating that the land system pressure, the land system sensitivity, the land system adaptability and the land system vulnerability changes of spatial distribution in Guizhou Province had significant agglomeration characteristics; (4) in terms of local spatial differentiation, Wuling Mountainous area, Wumeng Mountainous area and peak cluster depression area were the main hotspots for the land system pressure changes, adaptation changes and vulnerability changes. The hotspots with the land system sensitivity change mainly distributed in the central economic area, Wuling Mountainous area and peak cluster depression area.