气候变化领域集成服务门户(CCPortal): Changes in carbon and nitrogen metabolism during seawater-induced mortality of Picea sitchensis trees

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DOI	10.1093/treephys/tpab073
	Changes in carbon and nitrogen metabolism during seawater-induced mortality of Picea sitchensis trees
	Li, Weibin; Zhang, Hongxia; Wang, Wenzhi; Zhang, Peipei; Ward, Nicholas D.; Norwood, Matt; Myers-Pigg, Allison; Zhao, Chuanyan; Leff, Riley; Yabusaki, Steve; Waichler, Scott; Bailey, Vanessa L.; McDowell, Nate G.
通讯作者	Li, WB (通讯作者)，Lanzhou Univ, Key Lab Grassland Livestock Ind Innovat, State Key Lab Grassland & Agroecosyst, Coll Pastoral Agr Sci & Technol,Minist Agr & Rura, Lanzhou 730020, Peoples R China. ; Li, WB ; McDowell, NG (通讯作者)，Pacific Northwest Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99354 USA. ; Li, WB (通讯作者)，Henan Univ, Minist Educ, Key Lab Geospatial Technol Middle & Lower Yellow, Kaifeng 475004, Peoples R China. ; McDowell, NG (通讯作者)，Washington State Univ, Sch Biol Sci, Pullman, WA 99164 USA.
发表日期	2021
ISSN	0829-318X
EISSN	1758-4469
起始页码	2326
结束页码	2340
卷号	41 期号:12
英文摘要	Increasing seawater exposure is causing mortality of coastal forests, yet the physiological response associated with seawater-induced tree mortality, particularly in non-halophytes, is poorly understood. We investigated the shifts in carbon and nitrogen (N) metabolism of mature Sitka-spruce trees that were dying after an ecosystem-scale manipulation of tidal seawater exposure. Soil porewater salinity and foliar ion concentrations increased after seawater exposure and were strongly correlated with the percentage of live foliated crown (PLFC; e.g., crown 'greenness', a measure of progression to death). Co-occurring with decreasing PLFC was decreasing photosynthetic capacity, N-investment into photosynthesis, N-resorption efficiency and non-structural carbohydrate (soluble sugars and starch) concentrations, with the starch reserves depleted to near zero when PLFC dropped below 5%. Combined with declining PLFC, these changes subsequently decreased total carbon gain and thus exacerbated the carbon starvation process. This study suggests that an impairment in carbon and N metabolism during the mortality process after seawater exposure is associated with the process of carbon starvation, and provides critical knowledge necessary to predict sea-level rise impacts on coastal forests.
关键词	DROUGHT-INDUCED TREE SEA-LEVEL RISE PHOTOSYNTHETIC CAPACITY RESORPTION EFFICIENCY NUTRIENT RESORPTION CO2 ASSIMILATION CYCLE MODELS SALINITY LEAVES GROWTH
英文关键词	A-C-i curves; nitrogen resorption; non-structural carbohydrates; photosynthetic capacity; seawater exposure; tree mortality
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:000742398400009
来源期刊	TREE PHYSIOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/255179
作者单位	[Li, Weibin; Zhao, Chuanyan] Lanzhou Univ, Key Lab Grassland Livestock Ind Innovat, State Key Lab Grassland & Agroecosyst, Coll Pastoral Agr Sci & Technol,Minist Agr & Rura, Lanzhou 730020, Peoples R China; [Li, Weibin; Zhang, Hongxia; Wang, Wenzhi; Zhang, Peipei; Leff, Riley; McDowell, Nate G.] Pacific Northwest Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99354 USA; [Li, Weibin] Henan Univ, Minist Educ, Key Lab Geospatial Technol Middle & Lower Yellow, Kaifeng 475004, Peoples R China; [Zhang, Hongxia] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China; [Zhang, Peipei] East China Normal Univ, Sch Ecol & Environm Sci, Shanghai 200241, Peoples R China; [Ward, Nicholas D.; Norwood, Matt; Myers-Pigg, Allison] Pacific Northwest Natl Lab, Marine & Coastal Res Lab, Sequim, WA 98382 USA; [Ward, Nicholas D.] Univ Washington, Sch Oceanog, Seattle, WA 98195 USA; [Yabusaki, Steve; Waichler, Scott] Pacific Northwest Natl Lab, Earth Sy...
推荐引用方式 GB/T 7714	Li, Weibin,Zhang, Hongxia,Wang, Wenzhi,et al. Changes in carbon and nitrogen metabolism during seawater-induced mortality of Picea sitchensis trees[J]. 中国科学院西北生态环境资源研究院,2021,41(12).
APA	Li, Weibin.,Zhang, Hongxia.,Wang, Wenzhi.,Zhang, Peipei.,Ward, Nicholas D..,...&McDowell, Nate G..(2021).Changes in carbon and nitrogen metabolism during seawater-induced mortality of Picea sitchensis trees.TREE PHYSIOLOGY,41(12).
MLA	Li, Weibin,et al."Changes in carbon and nitrogen metabolism during seawater-induced mortality of Picea sitchensis trees".TREE PHYSIOLOGY 41.12(2021).