Spatiotemporal Variation Characteristics and Impact Factors of Vegetation Coverage in the Three Gorges Reservoir Area

被引：0
|
作者：
Chen T. [1 ]
Huang Q. [1 ]
Peng L. [2 ]
Wang Q. [3 ]
机构：
[1] Chongqing Key Laboratory of Earth Surface Process and Environment Remote Sensing in the Three Gorges Reservoir Area, College of Geography and Tourism, Chongqing Normal University, Chongqing
[2] The Faculty Geography Resource Science Sichuan Normal University, Chengdu
[3] Chongqing Institute of Surveying and Monitoring for Planning and Natural Resources, Chongqing
来源：
Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering | 2023年 / 31卷 / 02期
关键词：
driving partition; mutation detection; NDVI; returning farmland to forest; spatiotemporal pattern; the Three Gorges Reservoir Area;
D O I：
10.16058/j.issn.1005-0930.2023.02.004
中图分类号：
学科分类号：
摘要：
Trend analysis was used to explore the spatial and temporal patterns of vegetation normalized difference vegetation index (NDVI) in the Three Gorges Reservoir Area (TGRA) and its relationship with elevation. Through Mann-Kendall test, the mutation points of NDVI change was identified. The correlation and its driving partition of regional NDVI and climate, human factors were clarified.The results show that:(1) From 2000 to 2019,the average NDVI in the TGRA showed a rising trend of fluctuation,and its spatial distribution heterogeneity was obvious,which shows a increase first and then decrease slightly with regional elevation rising; (2) The increasing trend of NDVI was obvious from 2000 to 2008,and its growth rate slowed down after 2009;(3) Areas where climate was the main factor affecting NDVI accounted for 8. 9% of the total research area,whereas human activities were the primary factor influencing NDVI changes. Among them, ecological projects such as returning farmland to forests have a positive effect,while urbanization and economic development have a negative effect.It is urgent to take corresponding measures to realize the benign interaction between the regional economy and the ecosystem. © 2023 Editorial Board of Journal of Basic Science and. All rights reserved.
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页码：296 / 308
页数：12
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