Urban warming reduces aboveground carbon storage

Emily Meineke; Elsa Youngsteadt; Robert Roberdeau Dunn; Steven D. Frank

doi:10.1098/rspb.2016.1574

Urban warming reduces aboveground carbon storage

Emily Meineke^*, Elsa Youngsteadt, Robert Roberdeau Dunn, Steven D. Frank

^*Corresponding author af dette arbejde

39 Citationer (Scopus)

Abstract

A substantial amount of global carbon is stored in mature trees. However, no experiments to date test how warming affects mature tree carbon storage. Using a unique, citywide, factorial experiment, we investigated how warming and insect herbivory affected physiological function and carbon sequestration (carbon stored per year) of mature trees. Urban warming increased herbivorous arthropod abundance on trees, but these herbivores had negligible effects on tree carbon sequestration. Instead, urban warming was associated with an estimated 12% loss of carbon sequestration, in part because photosynthesis was reduced at hotter sites. Ecosystem service assessments that do not consider urban conditions may overestimate urban tree carbon storage. Because urban and global warming are becoming more intense, our results suggest that urban trees will sequester even less carbon in the future.

Originalsprog	Engelsk
Artikelnummer	20161574
Tidsskrift	Royal Society of London. Proceedings B. Biological Sciences
Vol/bind	283
Udgave nummer	1840
Antal sider	9
ISSN	0962-8452
DOI	https://doi.org/10.1098/rspb.2016.1574
Status	Udgivet - 12 okt. 2016

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title = "Urban warming reduces aboveground carbon storage",

abstract = "A substantial amount of global carbon is stored in mature trees. However, no experiments to date test how warming affects mature tree carbon storage. Using a unique, citywide, factorial experiment, we investigated how warming and insect herbivory affected physiological function and carbon sequestration (carbon stored per year) of mature trees. Urban warming increased herbivorous arthropod abundance on trees, but these herbivores had negligible effects on tree carbon sequestration. Instead, urban warming was associated with an estimated 12% loss of carbon sequestration, in part because photosynthesis was reduced at hotter sites. Ecosystem service assessments that do not consider urban conditions may overestimate urban tree carbon storage. Because urban and global warming are becoming more intense, our results suggest that urban trees will sequester even less carbon in the future.",

keywords = "Carbon storage, Climate change, Ecosystem services, Herbivory, Urban ecology, Urban heat island effect",

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T1 - Urban warming reduces aboveground carbon storage

AU - Meineke, Emily

AU - Youngsteadt, Elsa

AU - Dunn, Robert Roberdeau

AU - Frank, Steven D.

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N2 - A substantial amount of global carbon is stored in mature trees. However, no experiments to date test how warming affects mature tree carbon storage. Using a unique, citywide, factorial experiment, we investigated how warming and insect herbivory affected physiological function and carbon sequestration (carbon stored per year) of mature trees. Urban warming increased herbivorous arthropod abundance on trees, but these herbivores had negligible effects on tree carbon sequestration. Instead, urban warming was associated with an estimated 12% loss of carbon sequestration, in part because photosynthesis was reduced at hotter sites. Ecosystem service assessments that do not consider urban conditions may overestimate urban tree carbon storage. Because urban and global warming are becoming more intense, our results suggest that urban trees will sequester even less carbon in the future.

AB - A substantial amount of global carbon is stored in mature trees. However, no experiments to date test how warming affects mature tree carbon storage. Using a unique, citywide, factorial experiment, we investigated how warming and insect herbivory affected physiological function and carbon sequestration (carbon stored per year) of mature trees. Urban warming increased herbivorous arthropod abundance on trees, but these herbivores had negligible effects on tree carbon sequestration. Instead, urban warming was associated with an estimated 12% loss of carbon sequestration, in part because photosynthesis was reduced at hotter sites. Ecosystem service assessments that do not consider urban conditions may overestimate urban tree carbon storage. Because urban and global warming are becoming more intense, our results suggest that urban trees will sequester even less carbon in the future.

KW - Carbon storage

KW - Climate change

KW - Ecosystem services

KW - Herbivory

KW - Urban ecology

KW - Urban heat island effect

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Urban warming reduces aboveground carbon storage

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