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Article: A comprehensive framework for seasonal controls of leaf abscission and productivity in evergreen broadleaved tropical and subtropical forests

TitleA comprehensive framework for seasonal controls of leaf abscission and productivity in evergreen broadleaved tropical and subtropical forests
Authors
Keywordsclimate and phenology regime
climatic driver
leaf abscission and productivity
plant adaptive strategy
tropical forest
Issue Date2021
Citation
Innovation, 2021, v. 2, n. 4, article no. 100154 How to Cite?
AbstractRelationships among productivity, leaf phenology, and seasonal variation in moisture and light availability are poorly understood for evergreen broadleaved tropical/subtropical forests, which contribute 25% of terrestrial productivity. On the one hand, as moisture availability declines, trees shed leaves to reduce transpiration and the risk of hydraulic failure. On the other hand, increases in light availability promote the replacement of senescent leaves to increase productivity. Here, we provide a comprehensive framework that relates the seasonality of climate, leaf abscission, and leaf productivity across the evergreen broadleaved tropical/subtropical forest biome. The seasonal correlation between rainfall and light availability varies from strongly negative to strongly positive across the tropics and maps onto the seasonal correlation between litterfall mass and productivity for 68 forests. Where rainfall and light covary positively, litterfall and productivity also covary positively and are always greater in the wetter sunnier season. Where rainfall and light covary negatively, litterfall and productivity are always greater in the drier and sunnier season if moisture supplies remain adequate; otherwise productivity is smaller in the drier sunnier season. This framework will improve the representation of tropical/subtropical forests in Earth system models and suggests how phenology and productivity will change as climate change alters the seasonality of cloud cover and rainfall across tropical/subtropical forests.
Persistent Identifierhttp://hdl.handle.net/10722/327351
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYang, Xueqin-
dc.contributor.authorWu, Jianping-
dc.contributor.authorChen, Xiuzhi-
dc.contributor.authorCiais, Philippe-
dc.contributor.authorMaignan, Fabienne-
dc.contributor.authorYuan, Wenping-
dc.contributor.authorPiao, Shilong-
dc.contributor.authorYang, Song-
dc.contributor.authorGong, Fanxi-
dc.contributor.authorSu, Yongxian-
dc.contributor.authorDai, Yuhang-
dc.contributor.authorLiu, Liyang-
dc.contributor.authorZhang, Haicheng-
dc.contributor.authorBonal, Damien-
dc.contributor.authorLiu, Hui-
dc.contributor.authorChen, Guixing-
dc.contributor.authorLu, Haibo-
dc.contributor.authorWu, Shengbiao-
dc.contributor.authorFan, Lei-
dc.contributor.authorGentine, Pierre-
dc.contributor.authorWright‬, S. Joseph-
dc.date.accessioned2023-03-31T05:30:43Z-
dc.date.available2023-03-31T05:30:43Z-
dc.date.issued2021-
dc.identifier.citationInnovation, 2021, v. 2, n. 4, article no. 100154-
dc.identifier.urihttp://hdl.handle.net/10722/327351-
dc.description.abstractRelationships among productivity, leaf phenology, and seasonal variation in moisture and light availability are poorly understood for evergreen broadleaved tropical/subtropical forests, which contribute 25% of terrestrial productivity. On the one hand, as moisture availability declines, trees shed leaves to reduce transpiration and the risk of hydraulic failure. On the other hand, increases in light availability promote the replacement of senescent leaves to increase productivity. Here, we provide a comprehensive framework that relates the seasonality of climate, leaf abscission, and leaf productivity across the evergreen broadleaved tropical/subtropical forest biome. The seasonal correlation between rainfall and light availability varies from strongly negative to strongly positive across the tropics and maps onto the seasonal correlation between litterfall mass and productivity for 68 forests. Where rainfall and light covary positively, litterfall and productivity also covary positively and are always greater in the wetter sunnier season. Where rainfall and light covary negatively, litterfall and productivity are always greater in the drier and sunnier season if moisture supplies remain adequate; otherwise productivity is smaller in the drier sunnier season. This framework will improve the representation of tropical/subtropical forests in Earth system models and suggests how phenology and productivity will change as climate change alters the seasonality of cloud cover and rainfall across tropical/subtropical forests.-
dc.languageeng-
dc.relation.ispartofInnovation-
dc.subjectclimate and phenology regime-
dc.subjectclimatic driver-
dc.subjectleaf abscission and productivity-
dc.subjectplant adaptive strategy-
dc.subjecttropical forest-
dc.titleA comprehensive framework for seasonal controls of leaf abscission and productivity in evergreen broadleaved tropical and subtropical forests-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.xinn.2021.100154-
dc.identifier.scopuseid_2-s2.0-85113303701-
dc.identifier.volume2-
dc.identifier.issue4-
dc.identifier.spagearticle no. 100154-
dc.identifier.epagearticle no. 100154-
dc.identifier.eissn2666-6758-
dc.identifier.isiWOS:000747248500005-

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