globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.14142
Scopus记录号: 2-s2.0-85044937906
论文题名:
Nitrogen deposition outweighs climatic variability in driving annual growth rate of canopy beech trees: Evidence from long-term growth reconstruction across a geographic gradient
作者: Gentilesca T.; Rita A.; Brunetti M.; Giammarchi F.; Leonardi S.; Magnani F.; van Noije T.; Tonon G.; Borghetti M.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期:7
起始页码: 2898
结束页码: 2912
语种: 英语
英文关键词: age ; climate change ; Fagus sylvatica L ; forest ; height growth ; nitrogen deposition ; stem analysis ; volume growth
Scopus关键词: canopy ; climate change ; climate variation ; deciduous tree ; growth rate ; height ; nitrogen ; reconstruction ; stem ; Alps ; Apennines ; Italian Peninsula ; Italy ; Fagus ; Fagus sylvatica
英文摘要: In this study, we investigated the role of climatic variability and atmospheric nitrogen deposition in driving long-term tree growth in canopy beech trees along a geographic gradient in the montane belt of the Italian peninsula, from the Alps to the southern Apennines. We sampled dominant trees at different developmental stages (from young to mature tree cohorts, with tree ages spanning from 35 to 160 years) and used stem analysis to infer historic reconstruction of tree volume and dominant height. Annual growth volume (GV) and height (GH) variability were related to annual variability in model simulated atmospheric nitrogen deposition and site-specific climatic variables, (i.e. mean annual temperature, total annual precipitation, mean growing period temperature, total growing period precipitation, and standard precipitation evapotranspiration index) and atmospheric CO2 concentration, including tree cambial age among growth predictors. Generalized additive models (GAM), linear mixed-effects models (LMM), and Bayesian regression models (BRM) were independently employed to assess explanatory variables. The main results from our study were as follows: (i) tree age was the main explanatory variable for long-term growth variability; (ii) GAM, LMM, and BRM results consistently indicated climatic variables and CO2 effects on GV and GH were weak, therefore evidence of recent climatic variability influence on beech annual growth rates was limited in the montane belt of the Italian peninsula; (iii) instead, significant positive nitrogen deposition (Ndep) effects were repeatedly observed in GV and GH; the positive effects of Ndep on canopy height growth rates, which tended to level off at Ndep values greater than approximately 1.0 g m−2 y−1, were interpreted as positive impacts on forest stand above-ground net productivity at the selected study sites. © 2018 John Wiley & Sons Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110357
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Scuola di Scienze Agrarie, Forestali, Alimentari ed Ambientali, Università della Basilicata, Potenza, Italy; Istituto di Scienze dell'Atmosfera e del Clima, Consiglio Nazionale delle Ricerche, Bologna, Italy; Faculty of Science and Technology, Free University of Bolzano, Bolzano, Italy; Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parma, Italy; Dipartimento di Scienze Agrarie, Università di Bologna, Bologna, Italy; Royal Netherlands Meteorological Institute (KNMI), AE De Bilt, Netherlands

Recommended Citation:
Gentilesca T.,Rita A.,Brunetti M.,et al. Nitrogen deposition outweighs climatic variability in driving annual growth rate of canopy beech trees: Evidence from long-term growth reconstruction across a geographic gradient[J]. Global Change Biology,2018-01-01,24(7)
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