Constrained tree growth and gas exchange of seawater-exposed forests in the Pacific Northwest, USA

doi:10.1111/1365-2745.13225

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Constrained tree growth and gas exchange of seawater-exposed forests in the Pacific Northwest, USA
	Wang Wenzhi1,2 ; McDowell Nate G.1; Ward Nicholas D.3,4; Indivero Julia 3; Gunn Cailene 3; Bailey Vanessa L.5
刊名	JOURNAL OF ECOLOGY
	2019
卷号	107 期号:6 页码:2541-2552
关键词	coastal forests sea-level rise seawater tree growth tree mortality tree-ring delta C-13
ISSN号	0022-0477
DOI	10.1111/1365-2745.13225
通讯作者	Wang, Wenzhi(wenzhi.wang@pnnl.gov)
产权排序	2
文献子类	Article
英文摘要	Rising sea levels under climate change may have significant impacts on coastal vegetation dynamics, yet the response of coastal forest growth, gas exchange and survival to seawater intrusion remains poorly documented. We conducted a dendroecology study across six sites in western Washington, USA, to examine how tree growth, gas exchange (indexed by basal area increment (BAI) and wood delta C-13 respectively), and survival varies with seawater exposure through two approaches. First, tree core samples were collected at a site where seawater exposure started only 4 years prior to sampling, which allowed a cause-and-effect test of the impacts of seawater exposure on trees, and second, samples were collected at five additional sites where we compared downstream to upstream trees under current sea-level conditions. At the seawater intrusion site, BAI and carbon isotope discrimination (Delta) decreased significantly (p < 0.01) in the year of intrusion (2014) and stayed unchanged thereafter. Four years later (2018), the percentage of recently standing dead trees in the forest was 73.0% of the basal area. Across the regional assessment, percentage of standing dead trees was significantly greater in downstream than upstream forests at five of the six sites (averaged 37.7 +/- 11.0% and 4.3 +/- 2.1% basal area for downstream and upstream, respectively). Growth was significantly lower (p < 0.01) at the downstream than upstream for five sites, and Delta was lower for all needle-leaf trees (three sites) on the downstream compared to the upstream, but no difference was observed between downstream and upstream for broad-leaf trees (three sites). Synthesis. Combined both the cause-and-effect manipulative study and the regional assessment demonstrate that seawater exposure drives reductions in growth, decreased Delta of needle-leaf trees, increased mortality and greater climate sensitivity, regardless of whether the seawater exposure is recent or long-term.
电子版国际标准刊号	1365-2745
WOS关键词	CARBON-ISOTOPE DISCRIMINATION ; SEA-LEVEL RISE ; RADIAL GROWTH ; PHYSIOLOGICAL-RESPONSES ; PHOTOSYNTHETIC CAPACITY ; STOMATAL CONDUCTANCE ; STABLE-ISOTOPES ; WHITE SPRUCE ; WHOLE WOOD ; SALINITY
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
语种	英语
出版者	WILEY
WOS记录号	WOS:000491025800003
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/31288]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Wang Wenzhi
作者单位	1.Atmospheric Sciences & Global Change Division, Pacific Northwest National Laboratory, Richland, Washington; 2.The Key Laboratory of Mountain Environment Evolution and Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China; 3.Marine Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, Washington; 4.School of Oceanography, University of Washington, Seattle, Washington 5.Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington
推荐引用方式 GB/T 7714	Wang Wenzhi,McDowell Nate G.,Ward Nicholas D.,et al. Constrained tree growth and gas exchange of seawater-exposed forests in the Pacific Northwest, USA[J]. JOURNAL OF ECOLOGY,2019,107(6):2541-2552.
APA	Wang Wenzhi,McDowell Nate G.,Ward Nicholas D.,Indivero Julia,Gunn Cailene,&Bailey Vanessa L..(2019).Constrained tree growth and gas exchange of seawater-exposed forests in the Pacific Northwest, USA.JOURNAL OF ECOLOGY,107(6),2541-2552.
MLA	Wang Wenzhi,et al."Constrained tree growth and gas exchange of seawater-exposed forests in the Pacific Northwest, USA".JOURNAL OF ECOLOGY 107.6(2019):2541-2552.