IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.9
Assessing adaptability and response of vegetation to glacier recession in the afro-alpine moorland terrestrial ecosystem of Rwenzori Mountains
Tonny J. OYANA; Bob R. NAKILEZA
Corresponding AuthorBob R. NAKILEZA
2016-09
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume13Issue:9Pages:1584-1597
Subtype期刊论文
AbstractThe objective of this study was to explore vegetation adaptability in a changing afro-alpine moorland terrestrial ecosystem on Mt. Rwenzori and to determine whether there were any links with response of vegetation to glacier recession. We analyzed the composition and distribution of plant species in relation to soils, geomorphic processes, and landscape positions in the Alpine zone. To accomplish this objective, archival data sources and published reports for this ecosystem were reviewed. A field trip was conducted in 2010 to study in detail seven vegetation sampling plots that were systematically selected using GIS maps and a nested-quadrat sampling design framework along an altitudinal gradient in the lower and upper alpine zones. Using these sampling plots, 105 vegetation and 13 soil samples were assessed in the alpine zone. Soil samples were taken for laboratory testing and analysis. The results show statistically significant differences in pH, OM, N, P, Ca, Mg, and K pools between soils samples drawn from the lower and upper alpine sites (p < 0.0033). Furthermore, we observed a significant vegetation formation with numerous structural forms, but there was a limited diversity of species. The most significant forms included Alchemilla carpets, Bogs, Dendrosenecio woodland, and Scree slopes. The lower alpine area (3500–3900 masl) had a more diverse plant species than other areas, especially Alchemilla argyrophylla and Dendrosenecio adnivalis species that were evident due to well-drained deeper soils. The Alchemilla subnivalis were evident at a higher altitude of above 4000 masl. Shifts in the Astareceae (e.g. Senecio species) were particularly prominent even on recently deglaciated areas. The spatial variations of species distribution, structure, and composition suggest there are serious implications in terms of ecosystem adaptability, resilience, and stability that require further evaluation.
KeywordAlpine Plant Species Species Abundance Tropical Afro-alpine Ecosystems Afro-alpine Moorland
DOI10.1007/s11629-015-3504-z
Indexed BySCI
Language英语
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Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17525
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.9
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GB/T 7714
Tonny J. OYANA,Bob R. NAKILEZA. Assessing adaptability and response of vegetation to glacier recession in the afro-alpine moorland terrestrial ecosystem of Rwenzori Mountains[J]. Journal of Mountain Science,2016,13(9):1584-1597.
APA Tonny J. OYANA,&Bob R. NAKILEZA.(2016).Assessing adaptability and response of vegetation to glacier recession in the afro-alpine moorland terrestrial ecosystem of Rwenzori Mountains.Journal of Mountain Science,13(9),1584-1597.
MLA Tonny J. OYANA,et al."Assessing adaptability and response of vegetation to glacier recession in the afro-alpine moorland terrestrial ecosystem of Rwenzori Mountains".Journal of Mountain Science 13.9(2016):1584-1597.
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