Dynamic change of net primary productivity and fractional vegetation cover in the yellow river Basin using multi-temporal AVHRR NDVI Data |
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| Authors: | Sun Rui Liu Chang-ming Zhu Qi-jiangl |
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| Institution: | 1. Department of Geography, Beijing Normal University, Beijing 100875, China
2. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China |
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| Abstract: | An exponential relationship between net primary productivity (NPP) and integrated NDVI has been found in this paper. Based
on the relationship and using multi-temporal 8 km resolution NOAA AVHRR-NDVI data, the spatial distribution and dynamic change
of NPP and fractional vegetation cover in the Yellow River Basin from 1982 to 1999 are analyzed. Finally, the effect of rainfall
on NDVI is examined. Results show that mean NPP and fractional vegetation cover have an inclining trend for the whole basin,
and rainfall in flood season influences vegetation cover most. |
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| Keywords: | net primary productivity fractional vegetation cover rainfall remote sensing |
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