Relationship between Space-Based Vegetation Productivity Index and Radial Growth of Main Tree Species in the Dry Afromontane Forest Remnants of Northern Ethiopia
| Autor: | Motuma Tolera Feyissa, Zenebe Girmay Siyum, M.A Onilude, J.O Ayoade |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences biology Phenology Forestry Vegetation Dry Afromontane Forest Remote-sensing Tree-rings Seasonality Juniperus procera medicine.disease biology.organism_classification 01 natural sciences Normalized Difference Vegetation Index Productivity (ecology) medicine Environmental science Ecosystem Temporal scales 010606 plant biology & botany 0105 earth and related environmental sciences |
| Zdroj: | Journal of Applied Sciences and Environmental Management; Vol 22, No 11 (2018); 1781–1790 |
| ISSN: | 1119-8362 |
| Popis: | Investigating the relations between Normalized Difference Vegetation Index (NDVI) and tree growth is vital for quantifying ecosystem primary productivity over large spatial and long temporal scales. In this study, the relationships between forest growth (tree-ring width indices) and space-based measurement of vegetation activity (NDVI) were examined in the dry Afromontane forest remnants of northern Ethiopia. The results showed that radial growth of the main tree species ( Juniperus procera, Olea europaea and Podocarpus falcatus ) is positively correlated with inter-annual NDVI values. Moreover, the relationships between ring width – rainfall and rainfall – NDVI were positive and significant (p |
| Databáze: | OpenAIRE |
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