Shifting climate zones and expanding tropical and arid climate regions across Kenya (1980–2020)

Human-induced climate change significantly alters the spatiotemporal characteristics of climate zones, which drives agricultural land use and ecosystem change. However, the detectability of shifting climate zones and the rate and time of the changes has yet to be adequately addressed at the regional...

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Autores principales: Lawrence, T.J., Vilbig, J.M., Kangogo, G., Fèvre, Eric M., Deem, S.L., Gluecks, Ilona V., Sagan, V., Shacham, E.
Formato: Journal Article
Lenguaje:Inglés
Publicado: Springer 2023
Materias:
Acceso en línea:https://hdl.handle.net/10568/129918
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author Lawrence, T.J.
Vilbig, J.M.
Kangogo, G.
Fèvre, Eric M.
Deem, S.L.
Gluecks, Ilona V.
Sagan, V.
Shacham, E.
author_browse Deem, S.L.
Fèvre, Eric M.
Gluecks, Ilona V.
Kangogo, G.
Lawrence, T.J.
Sagan, V.
Shacham, E.
Vilbig, J.M.
author_facet Lawrence, T.J.
Vilbig, J.M.
Kangogo, G.
Fèvre, Eric M.
Deem, S.L.
Gluecks, Ilona V.
Sagan, V.
Shacham, E.
author_sort Lawrence, T.J.
collection Repository of Agricultural Research Outputs (CGSpace)
description Human-induced climate change significantly alters the spatiotemporal characteristics of climate zones, which drives agricultural land use and ecosystem change. However, the detectability of shifting climate zones and the rate and time of the changes has yet to be adequately addressed at the regional-to-local scale. We mapped and analyzed changes to temperature and precipitation across Kenya during the past four decades, and linked those changes to shifts in the geographic distribution and arrangement of climate zones at regional scales. We observed an approximate 1 °C increase in average annual temperature over the 40-year period. A total of 76,346 km2 shifted from cooler to hotter zones, while 1298 km2 shifted from hotter to cooler zones. Tropical climate regions expanded from 91 to 93%, with over 13,000 km2 shifting from alpine and temperate to tropical regions. Average annual precipitation demonstrated little or no trend, but substantial spatial changes were observed. A total of 136,129 km2 shifted from wetter to drier zones, while 23,317 km2 shifted from drier to wetter zones. Arid climate regions expanded from 72 to 81%, a roughly 50,000 km2 shift from humid and semi-humid-to-semi-arid to arid regions. Overall, there was a 207,557 km2 shift in temperature and precipitation zones. As the climate zones predominately shift toward hotter and drier conditions, climatic diversity will decline, and in turn, ecosystem diversity and the ecosystem goods and services to society will decline. The changes also have broader global implications in terms of their contribution to global drylands as well as influencing earth system cycles. Overall, such information can better inform the Kenyan National Climate Change Response Strategy and be used to reach the UN Sustainable Development Goals.
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spelling CGSpace1299182025-02-19T13:42:48Z Shifting climate zones and expanding tropical and arid climate regions across Kenya (1980–2020) Lawrence, T.J. Vilbig, J.M. Kangogo, G. Fèvre, Eric M. Deem, S.L. Gluecks, Ilona V. Sagan, V. Shacham, E. climate change Human-induced climate change significantly alters the spatiotemporal characteristics of climate zones, which drives agricultural land use and ecosystem change. However, the detectability of shifting climate zones and the rate and time of the changes has yet to be adequately addressed at the regional-to-local scale. We mapped and analyzed changes to temperature and precipitation across Kenya during the past four decades, and linked those changes to shifts in the geographic distribution and arrangement of climate zones at regional scales. We observed an approximate 1 °C increase in average annual temperature over the 40-year period. A total of 76,346 km2 shifted from cooler to hotter zones, while 1298 km2 shifted from hotter to cooler zones. Tropical climate regions expanded from 91 to 93%, with over 13,000 km2 shifting from alpine and temperate to tropical regions. Average annual precipitation demonstrated little or no trend, but substantial spatial changes were observed. A total of 136,129 km2 shifted from wetter to drier zones, while 23,317 km2 shifted from drier to wetter zones. Arid climate regions expanded from 72 to 81%, a roughly 50,000 km2 shift from humid and semi-humid-to-semi-arid to arid regions. Overall, there was a 207,557 km2 shift in temperature and precipitation zones. As the climate zones predominately shift toward hotter and drier conditions, climatic diversity will decline, and in turn, ecosystem diversity and the ecosystem goods and services to society will decline. The changes also have broader global implications in terms of their contribution to global drylands as well as influencing earth system cycles. Overall, such information can better inform the Kenyan National Climate Change Response Strategy and be used to reach the UN Sustainable Development Goals. 2023-06 2023-04-06T14:13:02Z 2023-04-06T14:13:02Z Journal Article https://hdl.handle.net/10568/129918 en Open Access Springer Lawrence, T.J., Vilbig, J.M., Kangogo, G., Fèvre, E.M., Deem, S.L., Gluecks, I., Sagan, V. and Shacham, E. 2023. Shifting climate zones and expanding tropical and arid climate regions across Kenya (1980–2020). Regional Environmental Change 23(2): 59.
spellingShingle climate change
Lawrence, T.J.
Vilbig, J.M.
Kangogo, G.
Fèvre, Eric M.
Deem, S.L.
Gluecks, Ilona V.
Sagan, V.
Shacham, E.
Shifting climate zones and expanding tropical and arid climate regions across Kenya (1980–2020)
title Shifting climate zones and expanding tropical and arid climate regions across Kenya (1980–2020)
title_full Shifting climate zones and expanding tropical and arid climate regions across Kenya (1980–2020)
title_fullStr Shifting climate zones and expanding tropical and arid climate regions across Kenya (1980–2020)
title_full_unstemmed Shifting climate zones and expanding tropical and arid climate regions across Kenya (1980–2020)
title_short Shifting climate zones and expanding tropical and arid climate regions across Kenya (1980–2020)
title_sort shifting climate zones and expanding tropical and arid climate regions across kenya 1980 2020
topic climate change
url https://hdl.handle.net/10568/129918
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