Spatial-temporal dynamics of desert vegetation and its responses to climatic variations over the last three decades: a case study of Hexi region in Northwest China
| Autor: | Xuemei Yang, Taibao Yang, Xu Xianying, Mihretab G. Ghebrezgabher, Caizhou Kang, Zhiqi Li, Tang Jinnian, Huaidong Wei, Liu Shizeng |
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| Rok vydání: | 2016 |
| Předmět: |
geography
geography.geographical_feature_category 010504 meteorology & atmospheric sciences Drainage basin Climate change Vegetation 010501 environmental sciences Management Monitoring Policy and Law Structural basin 01 natural sciences Arid Normalized Difference Vegetation Index Climatology Environmental science Precipitation Moderate-resolution imaging spectroradiometer 0105 earth and related environmental sciences Earth-Surface Processes Water Science and Technology |
| Zdroj: | Journal of Arid Land. 8:556-568 |
| ISSN: | 2194-7783 1674-6767 |
| DOI: | 10.1007/s40333-016-0046-3 |
| Popis: | Analysis of spatial-temporal variations of desert vegetation under the background of climate changes can provide references for ecological restoration in arid and semi-arid areas. In this study, we used the Global Inventory Modeling and Mapping Studies (GIMMS) NDVI data from 1982 to 2006 and Moderate Resolution Imaging Spectroradiometer (MODIS) NDVI data from 2000 to 2013 to reveal the dynamics of desert vegetation in Hexi region of Northwest China over the past three decades. We also used the annual temperature and precipitation data acquired from the Chinese meteorological stations to analyze the response of desert vegetation to climatic variations. The average value of NDVImax (the maximum NDVI during the growing season) for desert vegetation in Hexi region increased at the rate of 0.65×10–3/a (P |
| Databáze: | OpenAIRE |
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