Monthly Resolution Analysis of Vegetation Response to Climatic Changes in the Upper Reaches of the Yellow River Basin

Abstract:

Vegetation cover in the upper reaches of the Yellow River basin and its relation to climatic changes were analyzed at one-month resolution, using AVHRR NDVI data and meteorological records from 1982–2006. Major climatic factors that affected vegetation changes in different regions of this basin were investigated. Correlation analyses revealed that high temperatures favored plant growth in most regions, especially the southern part of the study area (regions with alpine characteristics) during early and late periods of the growth season (i.e., relatively cold periods). Increased rainfall during spring had a strong positive effect on plant growth in the eastern and northern parts (semiarid regions) of this area. In contrast, increased spring rainfall had a negative effect on plant growth in the west and south (regions with abundant rainfall but insufficient thermal energy).

• Periodical: Advanced Materials Research (Volume 599)
• Pages: 938-942
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.599.938
• Online since: November 2012
• Authors: Jia Qiang Du, Cheng Cheng Liu, Cui Xu, Yang Guo, Li Xia Wang, Ying Chang Li
• Keywords: Correlation, Monthly, NDVI, Precipitation, Temperature

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