23 October 2007 Precipitation and temperature control the greening trend in northwest China during 1982-2003
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Abstract
The northwest China, typical arid and semi-arid regions, is the first or second-degree sensitivity zones for global change. Monitoring vegetation change is an important method to study the impacts of global climate change. Time-series satellite remote sensing data make it possible to monitor vegetation at different spatial and temporal resolutions globally. A long time series of Advanced Very High Resolution Radiometer (AVHRR) Normalized Difference Vegetation Index (NDVI) data with 8x8 km2 spatial resolution and during 1982 to 2003 were used to monitor the vegetation cover in the northwest China. The monitoring results indicate an obvious greening trend exists. The precipitation and relative humidity have high correlations with the SINDVI. So the water condition is the most important factors for the spatial distribution of the SINDVI levels. The precipitation and temperature are the primary driving factors for inter-annual vegetation changes.
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Mingguo Ma, Mingguo Ma, Yi Song, Yi Song, Xuemei Wang, Xuemei Wang, } "Precipitation and temperature control the greening trend in northwest China during 1982-2003", Proc. SPIE 6742, Remote Sensing for Agriculture, Ecosystems, and Hydrology IX, 67420X (23 October 2007); doi: 10.1117/12.726676; https://doi.org/10.1117/12.726676
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