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On the Variation of NDVI with the Principal Climatic Elements in the Tibetan Plateau
Key Laboratory of Mountain Surface Process and Ecological Regulation, Institute of Mountain Hazard and Environment, Chinese Academy of Sciences, No.9, Block 4, Renminnanlu Road, Chengdu 610041, China
College of Resources and Environment, University of Chinese Academy of Sciences, No.19 A, Yuquanlu Road, Beijing 100049, China
Land and Resource College, China West Normal University, No.1, Shidalu Road, Nanchong 637002, China
* Author to whom correspondence should be addressed.
Received: 8 April 2013; Accepted: 9 April 2013 / Published: 16 April 2013
Abstract: Temperature and precipitation have been separately reported to be the main factors affecting the Normalized Difference Vegetation Index (NDVI) in the Tibetan Plateau. The effects of the main climatic factors on the yearly maximum NDVI (MNDVI) in the Tibetan Plateau were examined on different scales. The result underscored the observation that both precipitation and temperature affect MNDVI based on weather stations or physico-geographical regions. Precipitation is the main climatic factor that affects the vegetation cover in the entire Tibetan Plateau. Both annual mean precipitation and annual mean precipitation of the growing period are related with MNDVI, and the positive correlations are manifested in a linear manner. By comparison, the weakly correlated current between MNDVI and all the temperature indexes is observed in the study area.
Keywords: vegetation index; precipitation; temperature; Tibetan Plateau
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MDPI and ACS Style
Sun, J.; Cheng, G.; Li, W.; Sha, Y.; Yang, Y. On the Variation of NDVI with the Principal Climatic Elements in the Tibetan Plateau. Remote Sens. 2013, 5, 1894-1911.
Sun J, Cheng G, Li W, Sha Y, Yang Y. On the Variation of NDVI with the Principal Climatic Elements in the Tibetan Plateau. Remote Sensing. 2013; 5(4):1894-1911.
Sun, Jian; Cheng, Genwei; Li, Weipeng; Sha, Yukun; Yang, Yunchuan. 2013. "On the Variation of NDVI with the Principal Climatic Elements in the Tibetan Plateau." Remote Sens. 5, no. 4: 1894-1911.