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A 3000-year record of vegetation changes and fire at a high-elevation wetland on Kilimanjaro, Tanzania
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- Courtney Mustaphi, Colin J. (författare)
- Univ Basel, Dept Environm Sci, Geoecol, CH-4056 Basel, Switzerland.;Nelson Mandela African Inst Sci & Technol, Ctr Water Infrastruct & Sustainable Energy WISE F, POB 9124, Arusha, Tanzania.
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- Kinyanjui, Rahab (författare)
- Natl Museums Kenya, Palynol & Palaeobot Sect, Dept Earth Sci, Nairobi, Kenya.
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- Shoemaker, Anna, 1988- (författare)
- Uppsala universitet,Arkeologi,Nelson Mandela African Inst Sci & Technol, Ctr Water Infrastruct & Sustainable Energy WISE F, POB 9124, Arusha, Tanzania.;Queens Univ, Dept Biol, Paleoecol Assessment & Res Lab PEARL, Kingston, ON, Canada.
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- Univ Basel, Dept Environm Sci, Geoecol, CH-4056 Basel, Switzerland;Nelson Mandela African Inst Sci & Technol, Ctr Water Infrastruct & Sustainable Energy WISE F, POB 9124, Arusha, Tanzania. Natl Museums Kenya, Palynol & Palaeobot Sect, Dept Earth Sci, Nairobi, Kenya. (creator_code:org_t)
- 2020-10-23
- 2021
- Engelska.
- Ingår i: Quaternary Research. - : Cambridge University Press. - 0033-5894 .- 1096-0287. ; 99, s. 34-62
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Kilimanjaro is experiencing the consequences of climate change and multiple land-use pressures. Few paleoenvironmental and archeological records exist to examine historical patterns of late Holocene ecosystem changes on Kilimanjaro. Here we present pollen, phytolith, and charcoal (>125 mu m) data from a palustrine sediment core that provide a 3000-year radiocarbon-dated record collected from a wetland near the headwaters of the Maua watershed in the alpine and ericaceous vegetation zones. From 3000 to 800 cal yr BP, the pollen, phytolith, and charcoal records show subtle variability in ericaceous and montane forest assemblages with apparent multicentennial secular variability and a long-term pattern of increasing Poaceae and charcoal. From 800 to 600 cal yr BP, montane forest taxa varied rapidly, Cyperaceae abundances increased, and charcoal remained distinctly low. From 600 yr cal BP to the present, woody taxa decreased, and ericaceous taxa and Poaceae dominated, with a conspicuously increased charcoal influx. Uphill wetland ecosystems are crucial for ecological and socioeconomic resilience on and surrounding the mountain. The results were synthesized with the existing paleoenvironmental and archaeological data to explore the high spatiotemporal complexity of Kilimanjaro and to understand historical human-environment interactions. These paleoenvironmental records create a long-term context for current climate, biodiversity, and land-use changes on and around Kilimanjaro.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Multidisciplinär geovetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geosciences, Multidisciplinary (hsv//eng)
Nyckelord
- Africa
- Archaeology
- Ericaceae
- Mires
- Mountain
- Palynology
- Palustrine
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- art (ämneskategori)
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