Open AccessThe influence of vegetation cover change on the land surface temperature in the central Guizhou urban agglomeration from 2000 to 2019
Author(s) -
Weizhao Sun,
Kun Yang,
Yi Luo
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/658/1/012009
Subject(s) - normalized difference vegetation index , vegetation (pathology) , environmental science , vegetation cover , physical geography , land cover , urban agglomeration , trend analysis , geography , climatology , land use , climate change , geology , mathematics , statistics , ecology , medicine , oceanography , archaeology , pathology , biology
We used land surface temperature (LST) and normalized difference vegetation index (NDVI) data from 2000 to 2019, using change trend analysis, correlation analysis, and other methods to explore the impact of vegetation cover changes on ground surface temperature. From 2000 to 2019, in the central Guizhou urban agglomeration, the LST showed a fluctuating downward trend, with an average trend rate of -5.1%a −1 . NDVI showed a fluctuating upward trend, with an average trend rate of 0.56%a −1 . The area with increasing LST (P<0.5) accounted for about 9.8%, and the area with a decreasing trend accounted for about 90.2%. The region of NDVI showing an increasing trend (P<0.5) accounted for approximately 97.34%, and the area of decreasing trend accounts for about 2.67%. About 96.8% of the regional area NDVI is negatively correlated with LST, and about 3.2% of the regional area is positively correlated.