Analysis of vegetation cover change and climate driving factors on the Qinghai-Tibet plateau

doi:10.14088/j.cnki.issn0439-8114.2020.15.008

Abstract

Abstract: MODIS product （NDVI and land surface temperature） and meteorological data （precipitation and temperature） from 317 stations of the Qinghai-Tibet plateau from 2001 to 2015 were used to study the correlation coefficient between NDVI and temperature, precipitation and land surface temperature, and the combined driving mechanism of three climatic factors was discussed. The results indicated that the vegetation decreased from east to west and from south to north, and the vegetation growth trend was positive on the Qinghai-Tibet plateau. The vegetation was positively correlated with precipitation, temperature and ground temperature. The vegetation had the highest correlation coefficient with temperature on the Qinghai-Tibet plateau. The primary driving factor for vegetation growth is heat. Precipitation and heat play a complementary role in the growth of vegetation on the Qinghai-Tibet plateau.

Key words: NDVI, climate driving factor, temperature, land surface temperature, precipitation, Qinghai-Tibet plateau

CLC Number:

XUE Yu-xuan, LU Hong-wei. Analysis of vegetation cover change and climate driving factors on the Qinghai-Tibet plateau[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(15): 44-48.

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