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DOI	10.1111/gcb.17201
	Global change progressively increases foliar nitrogen-phosphorus ratios in China's subtropical forests
	Lai, Yuan; Tang, Songbo; Lambers, Hans; Hietz, Peter; Tang, Wenguang; Gilliam, Frank S.; Lu, Xiankai; Luo, Xianzhen; Lin, Yutong; Wang, Shu; Zeng, Feiyan; Wang, Qi; Kuang, Yuanwen
发表日期	2024
ISSN	1354-1013
EISSN	1365-2486
起始页码	30
结束页码	2
卷号	30 期号:2
英文摘要	Globally increased nitrogen (N) to phosphorus (P) ratios (N/P) affect the structure and functioning of terrestrial ecosystems, but few studies have addressed the variation of foliar N/P over time in subtropical forests. Foliar N/P indicates N versus P limitation in terrestrial ecosystems. Quantifying long-term dynamics of foliar N/P and their potential drivers is crucial for predicting nutrient status and functioning in forest ecosystems under global change. We detected temporal trends of foliar N/P, quantitatively estimated their potential drivers and their interaction between plant types (evergreen vs. deciduous and trees vs. shrubs), using 1811 herbarium specimens of 12 widely distributed species collected during 1920-2010 across China's subtropical forests. We found significant decreases in foliar P concentrations (23.1%) and increases in foliar N/P (21.2%). Foliar N/P increased more in evergreen species (22.9%) than in deciduous species (16.9%). Changes in atmospheric CO2 concentrations (P-CO2), atmospheric N deposition and mean annual temperature (MAT) dominantly contributed to the increased foliar N/P of evergreen species, while P-CO2, MAT, and vapor pressure deficit, to that of deciduous species. Under future Shared Socioeconomic Pathway (SSP) scenarios, increasing MAT and P-CO2 would continuously increase more foliar N/P in deciduous species than in evergreen species, with more 12.9%, 17.7%, and 19.4% versus 6.1%, 7.9%, and 8.9% of magnitudes under the scenarios of SSP1-2.6, SSP3-7.0, and SSP5-8.5, respectively. The results suggest that global change has intensified and will progressively aggravate N-P imbalance, further altering community composition and ecosystem functioning of subtropical forests.
英文关键词	foliar N:P ratios; global change; herbarium specimens; N-P imbalance; subtropical forests
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS记录号	WOS:001177413700006
来源期刊	GLOBAL CHANGE BIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/302273
作者单位	Chinese Academy of Sciences; South China Botanical Garden, CAS; Chinese Academy of Sciences; South China Botanical Garden, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; East China Normal University; University of Western Australia; BOKU University; University of Leeds; State University System of Florida; University of West Florida; Guangdong Academy of Sciences; Institute of Eco-environmental & Soil Sciences, Guangdong Academy of Sciences
推荐引用方式 GB/T 7714	Lai, Yuan,Tang, Songbo,Lambers, Hans,et al. Global change progressively increases foliar nitrogen-phosphorus ratios in China's subtropical forests[J],2024,30(2).
APA	Lai, Yuan.,Tang, Songbo.,Lambers, Hans.,Hietz, Peter.,Tang, Wenguang.,...&Kuang, Yuanwen.(2024).Global change progressively increases foliar nitrogen-phosphorus ratios in China's subtropical forests.GLOBAL CHANGE BIOLOGY,30(2).
MLA	Lai, Yuan,et al."Global change progressively increases foliar nitrogen-phosphorus ratios in China's subtropical forests".GLOBAL CHANGE BIOLOGY 30.2(2024).