| 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
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| Corresponding Author | Wang, Wenzhi(wenzhi.wang@pnnl.gov) |
| 2019 | |
| Source Publication | JOURNAL OF ECOLOGY
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| ISSN | 0022-0477 |
| EISSN | 1365-2745 |
| Volume | 107Issue:6Pages:2541-2552 |
| Subtype | Article |
| Contribution Rank | 2 |
| Abstract | 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. |
| Keyword | coastal forests sea-level rise seawater tree growth tree mortality tree-ring delta C-13 |
| DOI | 10.1111/1365-2745.13225 |
| Indexed By | SCI |
| WOS Keyword | CARBON-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 Area | Plant Sciences ; Environmental Sciences & Ecology |
| WOS Subject | Plant Sciences ; Ecology |
| WOS ID | WOS:000491025800003 |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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 Author | Wang Wenzhi |
| Affiliation | 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 |
| 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 1365-2745.13225.pdf（1842KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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