Faster growth in warmer winters for large trees in a Mediterranean-climate ecosystem

Autor: Michael J. Papaik, Caroline Caum, Seth W. Bigelow, Malcolm P. North
Přispěvatelé: USFS Pacific Southwest Research Station, Universidade Estadual Paulista (UNESP), University of California, Forest Adaptation Research
Rok vydání: 2014
Předmět:
Zdroj: Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
ISSN: 1573-1480
0165-0009
DOI: 10.1007/s10584-014-1060-0
Popis: Made available in DSpace on 2022-04-29T07:14:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-03-01 Large trees (>76 cm breast-height diameter) are vital components of Sierra Nevada/Cascades mixed-conifer ecosystems because of their fire resistance, ability to sequester large amounts of carbon, and role as preferred habitat for sensitive species such as the California spotted owl. To investigate the likely performance of large trees in a rapidly changing climate, we analyzed growth rings of five conifer species against 20th century climate trends from local weather stations. Over the local station period of record, there were no temporal trends in precipitation, but maximum temperatures increased by 0.10 to 0.13 °C/decade (summer and autumn), and minimum temperatures increased by 0.11 to 0.19 °C/decade in all seasons. All species responded positively to precipitation, but more variation was explained by a significant positive response to minimum winter temperatures. High maximum summer temperature adversely affected growth of two species, and maximum spring temperatures in the year prior to ring formation were negatively associated with growth of one species. The strong coherent response to increasing minimum temperatures bodes well for growth of large trees in Sierra/Cascades region mixed conifer forest under continued climatic warming, but these trees will still be under threat by the increased fire intensity that is a indirect effect of warming. © 2014 Springer Science+Business Media Dordrecht (outside the USA). USFS Pacific Southwest Research Station, 1731 Research Park Drive, Davis, CA Faculdade de Ciências Agronômicas - Ciência Florestal Universidade Estadual de São Paulo, Botucatu Department of Plant Sciences University of California, Davis, CA Forest Adaptation Research, 20 Jaquith Road, Landgrove, VT, 05148 Faculdade de Ciências Agronômicas - Ciência Florestal Universidade Estadual de São Paulo, Botucatu
Databáze: OpenAIRE
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