[1]Xu Bingxian,Peng Yuxin,Li Lanhai,et al.Study on habitat quality and ecological risk in Manas River Basin based on landscape pattern[J].Research of Soil and Water Conservation,2025,32(01):328-335.[doi:10.13869/j.cnki.rswc.2025.01.031]
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Study on habitat quality and ecological risk in Manas River Basin based on landscape pattern
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
32
Number of periods:
2025 01
Page number:
328-335
Column:
Public date:
2025-01-10
- Title:
- Study on habitat quality and ecological risk in Manas River Basin based on landscape pattern
- Keywords:
- Manas River Basin; shelterbelts; habitat quality; landscape ecological risk; spatial autocorrelation
- CLC:
- X821; P901
- DOI:
- 10.13869/j.cnki.rswc.2025.01.031
- Abstract:
- [Objective]The aims of this study are to comprehensively analyze and evaluate the quality of oasis ecosystems in the Manas River Basin, and to identify the causative factors, so as to provide a reference for the improvement of basin habitat and the sustainable development of the region. [Methods]Based on the high-resolution remote sensing image data of the Manas River Basin in 2020, combined with the landscape ecology method, InVEST and landscape ecological risk assessment model were applied to comprehensively evaluate the habitat quality and landscape ecological risk of Manas River Basin. [Results]In 2020, the average of habitat quality in Manas River Basin was 0.33, and the overall habitat quality was poor. The higher risk of degradation of protective forests and the wide distribution of cropland were the main triggers of the poor regional habitat quality. The high habitat quality land categories, such as wetlands and watersheds, were exposed to a higher risk of degradation. The low degree of closure of protection forests and irrational forest network structure in the watershed had led to the most serious fragmentation of its landscape, with a high degree of wetland and watershed landscape disturbance and deeper anthropogenic impacts. The higher ecological risk area in the watershed accounted for the largest proportion of 37.82%, and the sum of it and the high ecological risk area accounted for more than 70%, with an overall cascading distribution characteristic of high in the center and low at the edges. There was a strong spatial clustering effect of both habitat quality and landscape ecological risk, with high-high clustering and low-low clustering predominating. [Conclusion]The distribution of landscape patterns has a large impact on regional habitat quality and landscape ecological risk. In the future, we need to focus on the rational planning and utilization of arable land in the watershed, the further strengthening of the maintenance and construction of protective forests so that they can give full play to their effectiveness, and the effective protection of wetlands and watersheds in order to improve the quality of the habitats and reduce the ecological risk of landscapes in the Manas River Basin.
- References:
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Last Update:
2025-01-10