مورد إلكتروني
Evolution of vegetation activity on vegetated, eroded, and erosion risk areas in the central Spanish Pyrenees, using multitemporal Landsat imagery
| العنوان: | Evolution of vegetation activity on vegetated, eroded, and erosion risk areas in the central Spanish Pyrenees, using multitemporal Landsat imagery |
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| بيانات النشر: | John Wiley & Sons British Society for Geomorphology 2011-03 |
| تفاصيل مُضافة: | Alatorre, L. C. Beguería, Santiago Vicente Serrano, Sergio M. |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | The temporal evolution of vegetation activity on various land cover classes in the Spanish Pyrenees was analyzed. Two time series of the normalized difference vegetation index (NDVI) were used, corresponding to March (early spring) and August (the end of summer). The series were generated from Landsat TM and Landsat ETM+ images for the period 1984–2007. An increase in the NDVI in March was found for vegetated areas, and the opposite trend was found in both March and August for degraded areas (badlands and erosion risk areas). The rise in minimum temperature and the time variation of the cloud cover during the study period appears to be the most important factors explaining increased NDVI in the vegetated areas. In degraded areas, no climatic or topographic variable was associated with the negative NDVI trend, which may be related to erosion processes taking place in these regions. |
| مصطلحات الفهرس: | Landsat, NDVI, Spanish Pyrenees, Vegetation activity, Erosion risk areas, artículo |
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| الإتاحة: | Open access content. Open access content openAccess |
| ملاحظة: | English |
| أرقام أخرى: | CTK oai:digital.csic.es:10261/33029 Alatorre LC, Begueria S, Vicente-Serrano S. Evolution of vegetation activity on vegetated, eroded, and erosion risk areas in the central Spanish Pyrenees, using multitemporal Landsat imagery. Earth Surface Processes and Landforms 36(3): 309-319 (2011) 0197-9337 10.1002/esp.2038 1096-9837 1103365299 |
| المصدر المساهم: | CSIC From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1103365299 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |