[1]ZHANG Shihe,LI Baoyin,LIN Yuying,et al.Research on Landscape Ecological Risk Assessment and Driving Factors Based on Ecosystem Services[J].Research of Soil and Water Conservation,2022,29(06):174-182.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 06
Page number:
174-182
Column:
Public date:
2022-10-20
- Title:
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Research on Landscape Ecological Risk Assessment and Driving Factors Based on Ecosystem Services
- Author(s):
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ZHANG Shihe1, LI Baoyin1, LIN Yuying2,3, ZHONG Quanlin1, CHENG Dongliang1, XU Chaobin1, CHANG Yunni1
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(1.School of Geographical Science, Fujian Normal University, Fuzhou 350007, China; 2.Postdoctoral Research Station of Ecology, Fujian Normal University, Fuzhou 350007, China; 3.College of Tourism, Fujian Normal University, Fuzhou 350117, China)
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- Keywords:
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landscape ecological risk; ecosystem services; geographically weighted regression; Fujian Province
- CLC:
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P901
- DOI:
-
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- Abstract:
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Landscape ecological risk assessment is the prerequisite and basis for realising the optimisation of landscape patterns, which is of great significance for promoting landscape ecological management and ecological civilisation construction. In this study, the spatiotemporal evolution characteristics of the landscape ecological risk in Fujian Province from 2000 to 2020 were evaluated and analysed based on the ecosystem services to improve the landscape ecological risk assessment method. Using the exploratory regression analysis and geographically weighted regression model, the main driving factors of the spatio-temporal evolution of landscape ecological risk were identified. The results showed that:(1)From 2000 to 2020, the degree of landscape disturbance in Fujian Province had gradually increased. Overall, it presented the spatial distribution characteristics of ‘low in northwest and high in southeast'‘large agglomeration, small dispersion'. From 2000 to 2020, the overall landscape vulnerability in Fujian Province showed a fluctuating downward trend, while the southwestern region showed an increasing trend.(2)From 2000 to 2020, the overall landscape ecological risk in Fujian Province was on the rise. The average value of the landscape ecological risk index had increased from 0.042 in 2000 to 0.049 in 2020, i. e., with an increase of 16.7%, showing obvious spatio-temporal heterogeneity. By 2020, the area of higher-level and highest-level risk areas increased 1.8 fold and gradually expanded from the eastern and southeast coastal areas to the inland. The low-level risk areas were reduced to 90% of 2000, mainly distributed in the central northern, central eastern and surrounding areas.(3)GDP, the permanent population, and annual average precipitation were the main driving factors behind the landscape ecological risks in Fujian Province, and the impact of various driving factors on landscape ecological risks was spatially heterogeneous. GDP and the permanent population had positive driving effects for landscape ecological risk in Fujian Province, while the average annual precipitation had a restraining effect. Therefore, optimising the urban economic development model and controlling the size of the permanent population is the key to the management and optimisation of landscape ecological risks in Fujian Province.