Changes in global climate heterogeneity under the 21st century global warming

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Guan , Y , Lu , H , Jiang , Y , Tian , P , Qiu , L , Heiskanen , J & Pellikka , P 2021 , ' Changes in global climate heterogeneity under the 21st century global warming ' , Ecological Indicators , vol. 130 , no. 108075 , 108075 .

Titel: Changes in global climate heterogeneity under the 21st century global warming
Författare: Guan, Yanlong; Lu, Hongwei; Jiang, Yelin; Tian, Peipei; Qiu, Lihua; Heiskanen, Janne; Pellikka, Petri
Upphovmannens organisation: Department of Geosciences and Geography
Datum: 2021-11
Språk: eng
Sidantal: 9
Tillhör serie: Ecological Indicators
ISSN: 1470-160X
Permanenta länken (URI):
Abstrakt: Variations in climate types are commonly used to describe changes in natural vegetation cover in response to global climate change. However, few attempts have been made to quantify the heterogeneous dynamics of climate types. In this study, based on the Coupled Model Intercomparison Project phase 5 (CMIP5) historical and representative concentration pathway (RCP) runs from 18 global climate models, we used Shannon's Diversity Index (SHDI) and Simpson's Diversity Index (SIDI) to characterise of global climate heterogeneity from a morphological perspective. Our results show that global climate heterogeneity calculated by the SHDI/SIDI indices decreased from 1901 to 2095 at a significance level of 0.01. As radiative forcing intensified from RCP 2.6 to 8.5, the SHDI/SIDI decreased significantly. Furthermore, we observed that the spatial distribution of global climate heterogeneity was significantly reduced, with a pronounced latitudinal trend. Sensitivity analysis indicated that the temperature increase played a more significant role in reducing global climate heterogeneity than precipitation under the three warming scenarios, which is possibly attributed to anthropogenic forcing. Our findings suggest that the dynamics of global climate heterogeneity can be an effective means of quantifying global biodiversity loss.
Beskrivning: Publisher Copyright: © 2021 The Author(s)
Subject: Climate diversity
Koppen-Geiger climate classification
Köppen–Geiger climate classification
1172 Environmental sciences
Referentgranskad: Ja
Licens: cc_by_nc_nd
Användningsbegränsning: openAccess
Parallelpublicerad version: publishedVersion

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