Late Holocene Environmental Reconstructions from Lake Solai, Kenya

Playa lake systems tend to be overlooked archives of paleoenvironmental change due to the likelihood of a short and intermittent record of deposition. Groundwater-fed wetlands associated with these climate-sensitive playas, however, preserve changes in hydrologic budget and are thus valuable archive...

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Bibliographic Details
Published in:The Professional geographer 2017-07, Vol.69 (3), p.438-454
Main Authors: Goman, Michelle, Ashley, Gail M., Owen, R. Bernhart, Hover, Victoria C., Maharjan, Dev K.
Format: Article
Language:English
Subjects:
Anthropogenic factors
Archives & records
Arid regions
biological proxies
Budgeting
cambio paleoambiental
Climate
degradación del suelo
Deposition
Drying
East African Rift
Glaciation
Groundwater
groundwater-fed wetlands
Holocene
Human influences
humedales alimentados por agua freática
Hydrology
Ice
Intermittent
Lakes
land degradation
Paleoecology
paleoenvironmental change
Pastoralism
Playas
proxis biológicos
Sediments
Semiarid environments
Semiarid regions
Valle de la Grieta del África Oriental
Wetlands
生物代理, 东非裂谷, 地下水溼地, 土地恶化, 古环境变迁
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Summary:Playa lake systems tend to be overlooked archives of paleoenvironmental change due to the likelihood of a short and intermittent record of deposition. Groundwater-fed wetlands associated with these climate-sensitive playas, however, preserve changes in hydrologic budget and are thus valuable archives for semiarid regions. This study examines the paleoecological record of a groundwater-fed wetland from Lake Solai, Kenya. Biological proxies are used to reconstruct paleoenvironmental change and climate impacts over the past millennium. Dry conditions persisted between CE 1115 and 1490, followed by wetter conditions during the Little Ice Age. Near surface sediments indicate increasing anthropogenic impact through pastoralism.
ISSN:0033-0124
1467-9272
DOI:10.1080/00330124.2016.1266948