气候变化领域集成服务门户(CCPortal): Growth rate rather than growing season length determines wood biomass in dry environments

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DOI	10.1016/j.agrformet.2019.02.031
	Growth rate rather than growing season length determines wood biomass in dry environments
	Ren, Ping; Ziaco, Emanuele; Rossi, Sergio; Biondi, Franco; Prislan, Peter; Liang, Eryuan
通讯作者	Liang, E (通讯作者)
发表日期	2019
ISSN	0168-1923
EISSN	1873-2240
起始页码	46
结束页码	53
卷号	271
英文摘要	A number of studies have suggested that growing season length determines carbon sequestration of forest ecosystems. Given the possibility that drought-induced growth decline will be caused by a prolonged growing season under a warming climate, we investigated the effect of growth rate and duration of xylem production on annual wood biomass in drought-prone environments. We analyzed the intra-annual dynamics of wood formation in Qilian junipers (Juniperus przewalskii) from the semi-arid north-eastern Tibetan Plateau, China (2009-2014) and in ponderosa pine (Pines ponderosa) from the hyperacid Mojave Desert in Nevada, USA (2015-2016). Most variability in the number of xylem cells (N-cell) was related to growth rate (r(m)) rather than duration of cell production (D-cell). At the Tibetan sites, 69.9% and 54.7% of variability in N-cell was attributable to r(m) for the lower and upper treeline, respectively. Within the Mojave Desert site, 53.9% of the variability in N-cell was related to r(m). The growth rate in the Tibetan Plateau forest is affected by minimum temperature and precipitation. Thus, r(m) is a primary control on wood biomass in conifer species of semi-arid forests. Under warmer and drier conditions, a longer growing season will not benefit xylem formation of conifers, and in turn warming-induced drought could limit carbon sequestration by reducing the rate of cell production.
关键词	NET ECOSYSTEM PRODUCTIVITY TREE-RINGS CAMBIAL ACTIVITY REDUCED GROWTH DROUGHT STRESS SPRUCE FOREST STEM RADIUS XYLOGENESIS CARBON PHENOLOGY
英文关键词	Conifer; Wood production; Carbon sequestration; Growing season length; Growth rate; Drought stress
语种	英语
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000468709200005
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
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/259628
推荐引用方式 GB/T 7714	Ren, Ping,Ziaco, Emanuele,Rossi, Sergio,et al. Growth rate rather than growing season length determines wood biomass in dry environments[J]. 中国科学院青藏高原研究所,2019,271.
APA	Ren, Ping,Ziaco, Emanuele,Rossi, Sergio,Biondi, Franco,Prislan, Peter,&Liang, Eryuan.(2019).Growth rate rather than growing season length determines wood biomass in dry environments.AGRICULTURAL AND FOREST METEOROLOGY,271.
MLA	Ren, Ping,et al."Growth rate rather than growing season length determines wood biomass in dry environments".AGRICULTURAL AND FOREST METEOROLOGY 271(2019).