Changes in NDVI and human population in protected areas on the Tibetan Plateau
| Autor: | Conor F. Cusack, Austin Madson, Thomas W. Gillespie, Yongkang Xue |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
010506 paleontology
010504 meteorology & atmospheric sciences Environmental change Life on Land Population Land management gimms3g 01 natural sciences tibetan plateau Normalized Difference Vegetation Index Physical Geography and Environmental Geoscience LandScan lcsh:QH540-549.5 avhrr Tibetan Plateau education skin and connective tissue diseases ecoregions Ecology Evolution Behavior and Systematics lcsh:Environmental sciences 0105 earth and related environmental sciences Earth-Surface Processes AVHRR lcsh:GE1-350 Global and Planetary Change geography education.field_of_study Plateau geography.geographical_feature_category Ecology landscan GIMMS(3g) Physical geography sense organs protected areas lcsh:Ecology |
| Zdroj: | Arctic, Antarctic, and Alpine Research, Vol 51, Iss 1, Pp 428-439 (2019) ARCTIC ANTARCTIC AND ALPINE RESEARCH, vol 51, iss 1 Arctic Antarctic and Alpine Research, vol 51, iss 1 |
| ISSN: | 1938-4246 1523-0430 |
| Popis: | Understanding the Tibetan Plateau’s role in environmental change has gained increasing scientific attention in light of warming and changes in land management. We examine changes in greenness over the Tibetan Plateau using the Normalized Difference Vegetation Index (NDVI) from the Global Inventory Monitoring and Modeling Study (GIMMS3g) to identify significant changes over the entire plateau, six ecoregions, and protected areas based on a multiyear time series of July imagery from 1982 to 2015. We also test whether there have been changes in human populations in protected areas. There has been relatively little change in mean NDVI over the Tibetan Plateau or ecoregions, however, there were significant changes at the pixel level. There are sixty-nine protected areas on the Tibetan Plateau; sixty-two protected areas had no significant change in mean NDVI and seven protected areas experienced a significant increase in NDVI. There has been an increase in population within protected areas from 2000 to 2015; however, mean populations significantly increased in two protected areas and significantly decreased in four protected areas. Results suggest a slow greening of the Tibetan Plateau, ecoregions, and protected areas, with a more rapid greening in northern Tibet at the pixel level. Most protected areas are experiencing minor changes in NDVI independent of human population. |
| Databáze: | OpenAIRE |
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