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ORIGINAL RESEARCH article
Front. Environ. Sci.
Sec. Environmental Informatics and Remote Sensing
Volume 12 - 2024 |
doi: 10.3389/fenvs.2024.1502208
This article is part of the Research Topic Monitoring Long-Term Forest Growth and Dynamics at Various Spatial Scales Using Remote Sensing Approaches View all 3 articles
Spatio-temporal variations of vegetation cover and its influencing factors in highland lake basin
Provisionally accepted- 1 Institute of International Rivers and Eco-security, Yunnan University, Kunming, Yunnan Province, China
- 2 West Yunnan University of Applied Sciences, Dali, China
- 3 Erhai Watershed Ecological Environment Quality Testing Engineering Research Center of Yunnan provincial Universities, Erhai Research Institute, West Yunnan University of Applied Sciences, Dali, China
- 4 College of Water Conservancy, Yunnan Agricultural University, Kunming, China, Kunming, Yunnan Province, China
Exploring dynamic vegetation changes and identifying the factors driving these changes are important for evaluating global ecosystem processes. Based on the pixel binary model, coefficient of variation, Theil-Sen median trend analysis, geographic detector, and Pearson correlation coefficient, this study analyzed vegetation cover variations and the factors influencing these changes in the Erhai Lake Basin, one of the most important plateau lakes in China. Vegetation cover exhibited a continuously increasing trend, with the proportion of high vegetation coverage consistently ranking first. Land use is an effective explanatory factor for vegetation cover, and shows obvious variation rules associated with elevation, land cover, population, and topography. It is important to highlight that the combination of two factors influences vegetation dynamics more significantly than one factor alone, with the interaction between land cover type and nightlight illumination being more powerful. These results enhance our understanding of the complex processes of vegetation cover variation in plateau lake catchments and offer a scientific reference for improving the spatial layout of vegetation in fragile ecosystems.
Keywords: Fractional vegetation cover, spatio-temporal variations, trend analysis, Driving factors, Erhai Lake Basin
Received: 26 Sep 2024; Accepted: 06 Nov 2024.
Copyright: © 2024 Liu, Hu, Ma and Huang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Wenxian Hu, West Yunnan University of Applied Sciences, Dali, China
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