气候变化领域集成服务门户(CCPortal): Global tree-ring analysis reveals rapid decrease in tropical tree longevity with temperature

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DOI	10.1073/PNAS.2003873117
	Global tree-ring analysis reveals rapid decrease in tropical tree longevity with temperature
	Locosselli G.M.; Brienen R.J.W.; de Souza Leite M.; Gloor M.; Krottenthaler S.; de Oliveira A.A.; Barichivich J.; Anhuf D.; Ceccantini G.; Schöngart J.; Buckeridge M.
发表日期	2021
ISSN	00278424
起始页码	33358
结束页码	33364
卷号	117 期号:52
英文摘要	Forests are the largest terrestrial biomass pool, with over half of this biomass stored in the highly productive tropical lowland forests. The future evolution of forest biomass depends critically on the response of tree longevity and growth rates to future climate. We present an analysis of the variation in tree longevity and growth rate using tree-ring data of 3,343 populations and 438 tree species and assess how climate controls growth and tree longevity across world biomes. Tropical trees grow, on average, two times faster compared to trees from temperate and boreal biomes and live significantly shorter, on average (186 ± 138 y compared to 322 ± 201 y outside the tropics). At the global scale, growth rates and longevity covary strongly with temperature. Within the warm tropical lowlands, where broadleaf species dominate the vegetation, we find consistent decreases in tree longevity with increasing aridity, as well as a pronounced reduction in longevity above mean annual temperatures of 25.4 °C. These independent effects of temperature and water availability on tree longevity in the tropics are consistent with theoretical predictions of increases in evaporative demands at the leaf level under a warmer and drier climate and could explain observed increases in tree mortality in tropical forests, including the Amazon, and shifts in forest composition in western Africa. Our results suggest that conditions supporting only lower tree longevity in the tropical lowlands are likely to expand under future drier and especially warmer climates. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Carbon cycle; Climate change; Dendrochronology; Forest dynamics
语种	英语
scopus关键词	Africa; article; carbon cycle; climate change; dendrochronology; forest dynamics; growth rate; longevity; mortality; plant leaf; prediction; temperature sensitivity; tropical rain forest; tropics; vegetation; water availability; anatomy and histology; ecosystem; geography; growth, development and aging; physiology; temperature; theoretical model; tree; tropic climate; water; Ecosystem; Geography; Longevity; Models, Theoretical; Temperature; Trees; Tropical Climate; Water
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179621
作者单位	Institute of Biosciences, University of São Paulo, São Paulo, SP, 05508-090, Brazil; Cluster of Ecology, Institute of Botany, São Paulo, SP, 04301-902, Brazil; School of Geography, University of Leeds, Leeds, LS2 9JT, United Kingdom; Department of Physical Geography, University of Passau, Passau, 94032, Germany; Instituto de Geografiá, Pontificia Universidad Católica de Valparaiso, Valparaiso, 2390302, Chile; National Institute of Amazonian Research, Manaus, AM, 69067-375, Brazil
推荐引用方式 GB/T 7714	Locosselli G.M.,Brienen R.J.W.,de Souza Leite M.,et al. Global tree-ring analysis reveals rapid decrease in tropical tree longevity with temperature[J],2021,117(52).
APA	Locosselli G.M..,Brienen R.J.W..,de Souza Leite M..,Gloor M..,Krottenthaler S..,...&Buckeridge M..(2021).Global tree-ring analysis reveals rapid decrease in tropical tree longevity with temperature.Proceedings of the National Academy of Sciences of the United States of America,117(52).
MLA	Locosselli G.M.,et al."Global tree-ring analysis reveals rapid decrease in tropical tree longevity with temperature".Proceedings of the National Academy of Sciences of the United States of America 117.52(2021).