气候变化领域集成服务门户(CCPortal): An earlier start of the thermal growing season enhances tree growth in cold humid areas but not in dry areas

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DOI	10.1038/s41559-022-01668-4
	An earlier start of the thermal growing season enhances tree growth in cold humid areas but not in dry areas
	Gao, Shan; Liang, Eryuan; Liu, Ruishun; Babst, Flurin; Camarero, J. Julio; Fl, Yongshuo H.; Piao, Shilong; Rossi, Sergio; Shen, Miaogen; Wang, Tao; Penuelas, Josep
通讯作者	Liang, EY (通讯作者)
发表日期	2022
ISSN	2397-334X
起始页码	397
结束页码	+
卷号	6 期号:4
英文摘要	The authors use tree-ring width data across the extratropical Northern Hemisphere to show that earlier growing season onsets lead to enhanced tree radial growth in cold humid but not in dry areas. Climatic warming alters the onset, duration and cessation of the vegetative season. While previous studies have shown a tight link between thermal conditions and leaf phenology, less is known about the impacts of phenological changes on tree growth. Here, we assessed the relationships between the start of the thermal growing season and tree growth across the extratropical Northern Hemisphere using 3,451 tree-ring chronologies and daily climatic data for 1948-2014. An earlier start of the thermal growing season promoted growth in regions with high ratios of precipitation to temperature but limited growth in cold-dry regions. Path analyses indicated that an earlier start of the thermal growing season enhanced growth primarily by alleviating thermal limitations on wood formation in boreal forests and by lengthening the period of growth in temperate and Mediterranean forests. Semi-arid and dry subalpine forests, however, did not benefit from an earlier onset of growth and a longer growing season, presumably due to associated water loss and/or more frequent early spring frosts. These emergent patterns of how climatic impacts on wood phenology affect tree growth at regional to hemispheric scales hint at how future phenological changes may affect the carbon sequestration capacity of extratropical forest ecosystems.
关键词	CLIMATE-CHANGE CARBON UPTAKE LAND-SURFACE XYLOGENESIS TEMPERATURE PHENOLOGY CONIFERS AUTUMN SPECIFICATION PRODUCTIVITY
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:000762147000002
来源期刊	NATURE ECOLOGY & EVOLUTION
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260775
推荐引用方式 GB/T 7714	Gao, Shan,Liang, Eryuan,Liu, Ruishun,et al. An earlier start of the thermal growing season enhances tree growth in cold humid areas but not in dry areas[J]. 中国科学院青藏高原研究所,2022,6(4).
APA	Gao, Shan.,Liang, Eryuan.,Liu, Ruishun.,Babst, Flurin.,Camarero, J. Julio.,...&Penuelas, Josep.(2022).An earlier start of the thermal growing season enhances tree growth in cold humid areas but not in dry areas.NATURE ECOLOGY & EVOLUTION,6(4).
MLA	Gao, Shan,et al."An earlier start of the thermal growing season enhances tree growth in cold humid areas but not in dry areas".NATURE ECOLOGY & EVOLUTION 6.4(2022).