Abstract

The spatiotemporal variability of the seasonal dynamics of the climate and vegetation index was analyzed, and the relationship between the vegetation index and various climate factors were explored (1982–2013) across the Tibetan Plateau. Severe variations in mean temperature, accumulated precipitation, and the normalized difference vegetation index (NDVI) were observed in the spring, summer, autumn, and winter. It found that the maximum NDVI of the study area increased at rates of 0.5 % per 10 years for spring (March–May), 0.4 % per 10 years for summer (June–August), 1.3 % per 10 years for autumn (September–November), and 0.3 % per 10 years for winter (December–February). Moreover, the change trends for temperature and precipitation increased as a whole. We demonstrated the correlation among NDVI and mean temperature and accumulated precipitation, in season, with the results differing for each season.

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