Impacts of Temperature, Precipitation and Human Activity on Vegetation NDVI in Yangtze River Basin, China

被引：9

作者：

Cui L. ^{[1
]}

Wang L. ^{[2
]}

Qu S. ^{[3
]}

Deng L. ^{[1
]}

Wang Z. ^{[1
]}

机构：

[1] School of Geography and Tourism, Huanggang Normal University, Huanggang

[2] School of Geography and Information Engineering, China University of Geosciences, Wuhan

[3] School of Resource and Environmental Science, Wuhan University, Wuhan

来源：

Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences | 2020年 / 45卷 / 06期

关键词：

NDVI; Precipitation; Remote sensing; Temperature; Yangtze River basin;

D O I：

10.3799/dqkx.2019.171

中图分类号：

学科分类号：

摘要：

To investigate the impacts of temperature, precipitation and human activity on the vegetation normalized difference vegetation index (NDVI) variation, in this study, taking Yangtze River basin (YRB) as the study area, temperature, precipitation and vegetation NDVI variation were analyzed using linear regression (LR) analysis and Theil-Sen Median trend analysis. The impacts of temperature, precipitation and human activity on vegetation NDVI variation were analyzed using the Pearson correlation analysis and residuals analysis. The results show that the annual mean temperature significantly increased over the whole basin during 1960-2015. However, the precipitation shows little change. The annual mean NDVI shows a significant increasing trend over the whole study area during 1982-2015. The correlation coefficients between NDVI and temperature are high. However, the mean NDVI has no significant correlation with annual precipitation. The regions where the NDVI increased caused by human activity were mainly located in the northern, southeastern and southwestern YRB, while the regions where the NDVI decreased caused by human activity were mainly located in the small part of mid-western YRB and YRD. This study highlights that the mean air temperature has stronger effects on vegetation NDVI than precipitation and the effects of global warming and human activity on ecological environment at the local scale. © 2020, Editorial Department of Earth Science. All right reserved.

引用

页码：1905 / 1917

页数：12

共 43 条

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