IMHE OpenIR  > 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 Julia3; Gunn Cailene3; Bailey Vanessa L.5
Corresponding AuthorWang, Wenzhi(wenzhi.wang@pnnl.gov)
2019
Source PublicationJOURNAL OF ECOLOGY
ISSN0022-0477
EISSN1365-2745
Volume107Issue:6Pages:2541-2552
SubtypeArticle
Contribution Rank2
AbstractRising 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.
Keywordcoastal forests sea-level rise seawater tree growth tree mortality tree-ring delta C-13
DOI10.1111/1365-2745.13225
Indexed BySCI
WOS KeywordCARBON-ISOTOPE DISCRIMINATION ; SEA-LEVEL RISE ; RADIAL GROWTH ; PHYSIOLOGICAL-RESPONSES ; PHOTOSYNTHETIC CAPACITY ; STOMATAL CONDUCTANCE ; STABLE-ISOTOPES ; WHITE SPRUCE ; WHOLE WOOD ; SALINITY
Language英语
WOS Research AreaPlant Sciences ; Environmental Sciences & Ecology
WOS SubjectPlant Sciences ; Ecology
WOS IDWOS:000491025800003
PublisherWILEY
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/31288
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorWang Wenzhi
Affiliation1.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
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
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.
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