Relationship between Space-Based Vegetation Productivity Index and Radial Growth of Main Tree Species in the Dry Afromontane Forest Remnants of Northern Ethiopia
| Autor: | Z.G Siyum, J.O Ayoade, M.A Onilude, M.T Feyissa |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Journal of Applied Sciences and Environmental Management, Vol 22, Iss 11 (2019) |
| Druh dokumentu: | article |
| ISSN: | 2659-1502 2659-1499 |
| DOI: | 10.4314/jasem.v22i11.12 |
| 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: | Directory of Open Access Journals |
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