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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Lihua Zhou Guojing Yang Yongjian Ding Jie Wang |
| Copyright Year | 2009 |
| Description | Author affiliation: Key Laboratory of Ecohydrology and Integrated River Basin Management, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences 320 Dong Gang West Road, Lanzhou 730000, P.R. China (Guojing Yang; Yongjian Ding; Jie Wang) || Dunhuang Gobi and Desert Ecology and Environment Research Station, Chinese Academy of Sciences 320 Dong Gang West Road, Lanzhou 730000, P.R. China (Lihua Zhou) |
| Abstract | Arid and semi-arid areas are very easily influenced by global warming because of the simple structure of landscape. The change of climate conditions affected the land vegetation coverage and its distribution in arid areas. As an indicator of vegetation growth and its spatial distribution, NDVI has a close relationship with climate conditions. Based on the remote sensing data GIMMS NDVI and software of ArcGIS, it was analyzed that the spatial-temporal correlations of NDVI with the precipitation and temperature in the Qilian Mountain located in the arid Northwest China in this paper from 1982 to 2003. The results showed that: (1) There was significant positive correlation between NDVI and temperature in the areas above the elevation of 2500 m, and significant negative correlation between NDVI and temperature in the areas below the elevation of 2500 m. (2) The value of NDVI was not visibly related with the precipitation in the both elevation areas. It can be concluded from the results that the vegetation coverage in lower elevation areas in Northwest China will be worse with the global warming. |
| File Size | 177336 |
| File Format | |
| ISBN | 9781424433940 |
| DOI | 10.1109/IGARSS.2009.5417821 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-07-12 |
| Publisher Place | South Africa |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Vegetation mapping Rivers Ocean temperature Land surface Global warming Ecosystems Principal component analysis Meteorology Sea surface Surface topography Northwest China NDVI vegetation coverage changes climate changes arid mountain |
| Content Type | Text |
| Resource Type | Article |
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