globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12552
论文题名:
On the tracks of Nitrogen deposition effects on temperate forests at their southern European range - an observational study from Italy
作者: Ferretti M.; Marchetto A.; Arisci S.; Bussotti F.; Calderisi M.; Carnicelli S.; Cecchini G.; Fabbio G.; Bertini G.; Matteucci G.; de Cinti B.; Salvati L.; Pompei E.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期:11
起始页码: 3423
结束页码: 3438
语种: 英语
英文关键词: CONECOFOR forest monitoring ; Growth and carbon sequestration ; N critical loads ; PLS regression ; Soil and foliar nutrients
Scopus关键词: air pollutant ; nitrogen ; soil pollutant ; air pollutant ; environmental monitoring ; forest ; growth, development and aging ; Italy ; metabolism ; soil pollutant ; tree ; Air Pollutants ; Environmental Monitoring ; Forests ; Italy ; Nitrogen ; Soil Pollutants ; Trees
英文摘要: We studied forest monitoring data collected at permanent plots in Italy over the period 2000-2009 to identify the possible impact of nitrogen (N) deposition on soil chemistry, tree nutrition and growth. Average N throughfall (N-NO3+N-NH4) ranged between 4 and 29 kg ha-1 yr-1, with Critical Loads (CLs) for nutrient N exceeded at several sites. Evidence is consistent in pointing out effects of N deposition on soil and tree nutrition: topsoil exchangeable base cations (BCE) and pH decreased with increasing N deposition, and foliar nutrient N ratios (especially N: P and N: K) increased. Comparison between bulk openfield and throughfall data suggested possible canopy uptake of N, levelling out for bulk deposition >4-6 kg ha-1 yr-1. Partial Least Square (PLS) regression revealed that - although stand and meteorological variables explained the largest portion of variance in relative basal area increment (BAIrel 2000-2009) - N-related predictors (topsoil BCE, C: N, pH; foliar N-ratios; N deposition) nearly always improved the BAIrel model in terms of variance explained (from 78.2 to 93.5%) and error (from 2.98 to 1.50%). N deposition was the strongest predictor even when stand, management and atmosphere-related variables (meteorology and tropospheric ozone) were accounted for. The maximal annual response of BAIrel was estimated at 0.074-0.085% for every additional kgN. This corresponds to an annual maximal relative increase of 0.13-0.14% of carbon sequestered in the above-ground woody biomass for every additional kgN, i.e. a median value of 159 kgC per kgN ha-1 yr-1 (range: 50-504 kgC per kgN, depending on the site). Positive growth response occurred also at sites where signals of possible, perhaps recent N saturation were detected. This may suggest a time lag for detrimental N effects, but also that, under continuous high N input, the reported positive growth response may be not sustainable in the long-term. © 2014 John Wiley & Sons Ltd.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62069
Appears in Collections:影响、适应和脆弱性

Files in This Item:

There are no files associated with this item.


作者单位: TerraData environmetrics, Via L. Bardelloni 19, Monterotondo Marittimo, Italy; Dipartimento di Biotecnologie Agrarie, Sezione di Botanica Ambientale ed Applicata, Università di Firenze, Piazzale Cascine 28, Firenze, Italy; CNR-Istituto per lo Studio degli Ecosistemi, Largo Tonolli 50, Verbania Pallanza, Italy; Dipartimento di Scienze della Terra, Via La Pira 4, Firenze, Italy; CRA- Centro di ricerca per la selvicoltura, Viale Santa Margherita 80, Arezzo, Italy; CNR- Istituto di Biologia Agroambientale e Forestale, Via Salaria km 29, 300, Monterotondo, Italy; CNR- Istituto per i Sistemi Agricoli e Forestali del Mediterraneo, Via Cavour, 4-6, Rende, Cosenza, Italy; CRA-Centro di ricerca per lo studio delle relazioni fra pianta e suolo, Via della Navicella n 2/4, Roma, Italy; CFS - Divisione 6, Via Carducci, Roma, Italy

Recommended Citation:
Ferretti M.,Marchetto A.,Arisci S.,et al. On the tracks of Nitrogen deposition effects on temperate forests at their southern European range - an observational study from Italy[J]. Global Change Biology,2014-01-01,20(11)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Ferretti M.]'s Articles
[Marchetto A.]'s Articles
[Arisci S.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Ferretti M.]'s Articles
[Marchetto A.]'s Articles
[Arisci S.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Ferretti M.]‘s Articles
[Marchetto A.]‘s Articles
[Arisci S.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.