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DOI	10.1016/j.foreco.2020.118743
	The stoichiometry of leaf nitrogen and phosphorus resorption in plantation forests
	Jiang D.; Yang B.; Cheng X.; Chen H.Y.H.; Ruan H.; Xu X.
发表日期	2020
ISSN	0378-1127
英文摘要	The scaling slopes of leaf N and P content, signalling the importance of plant N and P allocation strategies, have been well studied. However, the scaling slopes of leaf N and P resorption efficiency (NRE-PRE), that regulate ecosystem function and biogeochemical cycles, remains unclear. By synthesizing 513 paired observations of leaf NRE and PRE from plantations among 116 studies, we tested hypotheses that NRE-PRE scaling slopes vary among climate zones, along mean annual precipitation (MAP) gradients and stand ages, and among functional groups. We show that the NRE-PRE scaling slopes decreased from tropical regions to subtropical and temperate regions (decreasing MAP) due to high growth rates (more P demand) at high latitudes. The trees in the 20–40 year age range exhibited higher scaling slopes than those in other age ranges. The scaling slopes of coniferous, evergreen, and non-N2-fixing trees were lower than those of corresponding broadleaved, deciduous, and N2-fixing trees, given that the former plant groups tend to be in harsh environmental conditions (cold or P-limited). For each functional group, the latitudinal and temporal NRE-PRE scaling patterns were consistent with the pooled data set. Structural equation models showed that NRE-PRE scaling slopes decreased with latitude, stand age, and the scaling slope of green leaf N-P contents. Consistent with scaling relationships between green leaf N and P, our results suggest that NRE generally decouple from PRE in plantations worldwide. Our findings help improve predictions of plants’ nutrient balance and environmental adaptation strategies with climate change. © 2020 Elsevier B.V.
英文关键词	Leaf; Nitrogen and phosphorus; Plantation; Resorption; Scaling slope; Stoichiometry
语种	英语
scopus关键词	Biogeochemistry; Ecology; Forestry; Nitrogen; Phosphorus; Tropics; Allocation strategy; Biogeochemical cycle; Ecosystem functions; Environmental adaptation; Environmental conditions; Mean annual precipitation; Scaling relationships; Structural equation models; Climate change
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155658
作者单位	Department of Ecology, Co-Innovation Centre for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; College of Landscape Architecture, Jiangsu Vocational College of Agriculture and Forestry, Jurong, Jiangsu 212400, China; School of Ecology and Environmental Sciences, Yunnan University, Kunming, Yunnan 650091, China; Faculty of Natural Resources Management, Lakehead University, 955 Oliver Rd, Thunder Bay, ON P7B 5E1, Canada
推荐引用方式 GB/T 7714	Jiang D.,Yang B.,Cheng X.,et al. The stoichiometry of leaf nitrogen and phosphorus resorption in plantation forests[J],2020.
APA	Jiang D.,Yang B.,Cheng X.,Chen H.Y.H.,Ruan H.,&Xu X..(2020).The stoichiometry of leaf nitrogen and phosphorus resorption in plantation forests.Forest Ecology and Management.
MLA	Jiang D.,et al."The stoichiometry of leaf nitrogen and phosphorus resorption in plantation forests".Forest Ecology and Management (2020).