[1]Yao Kun,He Lei,Bai Lin,et al.Change and Driving Force Analysis of Vegetation Cover in the Northwest Sichuan Plateau[J].Research of Soil and Water Conservation,2024,31(01):363-372.[doi:10.13869/j.cnki.rswc.2024.01.033]
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Change and Driving Force Analysis of Vegetation Cover in the Northwest Sichuan Plateau
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 01
Page number:
363-372
Column:
Public date:
2024-02-20
- Title:
- Change and Driving Force Analysis of Vegetation Cover in the Northwest Sichuan Plateau
- CLC:
- X87
- DOI:
- 10.13869/j.cnki.rswc.2024.01.033
- Abstract:
- [Objective] The aims of this study are to investigate the dynamics of vegetation coverage changes and their underlying drivers in the northwestern Sichuan Plateau region, and to supply a theoretical foundation for regional vegetation conservation and restoration initiatives. [Methods] MODIS NDVI was utilized as the foundational dataset. By integrating Sen's trend analysis, Manna-Kendall test, and the Hurst model, we comprehensively analyzed the spatial distribution characteristics, trends spanning nearly 20 years, and prospective sustainable state of the region. Moreover, the study employed geographical detectors to delve into the underlying driving forces. [Results](1)The overall vegetation cover in the area was relatively great in the east.(2)In the whole period, the vegetation cover of 80.56% of the regions showed no significant change, and the vegetation cover of the regions with significant improvement accounted for 17.80%.(3)The Hurst index indicates that the overall vegetation cover will be in the development state of no significant change in the future.(4)The one-factor explanatory power of elevation, annual average temperature and soil type surpassed more than 30%. They were the main factors driving the formation of differences in vegetation cover distribution patterns. The interaction and synergy of each factor were enhanced. There were obvious differences in the intervals or types of suitable vegetation growth of each factor.(5)The natural factors dominated the formation of the overall pattern of spatial distribution of regional vegetation cover, whose land use types were the key factors in driving its dynamic change. In the past 20 years, the vegetation cover in the West Sichuan Plateau had changed significantly, and natural factors had dominated the spatial distribution pattern of regional vegetation cover. [Conclusion] In the past 20 years, the vegetation cover in the study area had a clear change pattern. Although natural factors dominate the spatial layout of vegetation cover, human activities are the main driving factors for its pattern change.
- References:
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Last Update:
2024-02-20