globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.14388
Scopus记录号: 2-s2.0-85052657694
论文题名:
Postfire nitrogen balance of Mediterranean shrublands: Direct combustion losses versus gaseous and leaching losses from the postfire soil mineral nitrogen flush
作者: Dannenmann M.; Díaz-Pinés E.; Kitzler B.; Karhu K.; Tejedor J.; Ambus P.; Parra A.; Sánchez-Martin L.; Resco V.; Ramírez D.A.; Povoas-Guimaraes L.; Willibald G.; Gasche R.; Zechmeister-Boltenstern S.; Kraus D.; Castaldi S.; Vallejo A.; Rubio A.; Moreno J.M.; Butterbach-Bahl K.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期:10
起始页码: 4505
结束页码: 4520
语种: 英语
英文关键词: 15N isotope labelling ; dinitrogen ; experimental fire ; Mediterranean shrubland ; N leaching ; nitric oxide ; nitrogen leaching ; nitrous oxide ; postfire mineral N flush ; soil–atmosphere exchange
英文摘要: Fire is a major factor controlling global carbon (C) and nitrogen (N) cycling. While direct C and N losses caused by combustion have been comparably well established, important knowledge gaps remain on postfire N losses. Here, we quantified both direct C and N combustion losses as well as postfire gaseous losses (N2O, NO and N2) and N leaching after a high-intensity experimental fire in an old shrubland in central Spain. Combustion losses of C and N were 9.4 Mg C/ha and 129 kg N/ha, respectively, representing 66% and 58% of initial aboveground vegetation and litter stocks. Moreover, fire strongly increased soil mineral N concentrations by several magnitudes to a maximum of 44 kg N/ha 2 months after the fire, with N largely originating from dead soil microbes. Postfire soil emissions increased from 5.4 to 10.1 kg N ha−1 year−1 for N2, from 1.1 to 1.9 kg N ha−1 year−1 for NO and from 0.05 to 0.2 kg N ha−1 year−1 for N2O. Maximal leaching losses occurred 2 months after peak soil mineral N concentrations, but remained with 0.1 kg N ha−1 year−1 of minor importance for the postfire N mass balance. 15N stable isotope labelling revealed that 33% of the mineral N produced by fire was incorporated in stable soil N pools, while the remainder was lost. Overall, our work reveals significant postfire N losses dominated by emissions of N2 that need to be considered when assessing fire effects on ecosystem N cycling and mass balance. We propose indirect N gas emissions factors for the first postfire year, equalling to 7.7% (N2-N), 2.7% (NO-N) and 5.0% (N2O-N) of the direct fire combustion losses of the respective N gas species. © 2018 John Wiley & Sons Ltd
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110203
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Garmisch-Partenkirchen, Germany; Institute of Soil Research, University of Natural Resources and Life Sciences, Vienna, Austria; Institute for Forest Ecology and Soils, Federal Research Centre for Forests, Vienna, Austria; Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark; Department of Forest Sciences, University of Helsinki, Helsinki, Finland; SoWa RI, Biology Center, Czech Academy of Sciences, České Budějovice, Czech Republic; Departamento de Ciencias Ambientales, Universidad de Castilla-La Mancha, Toledo, Spain; Departamento de Química y Tecnología de Alimentos, UPM, Madrid, Spain; Centro de Investigación del Fuego, Toledo, Spain; Department of Crop and Forest Sciences and AGROTECNIO Centre, Universitat de Lleida, Lleida, Spain; School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, China; International Potato Center, Lima, Peru; Gansu Key Laboratories of Arid and Crop Science, Crop Genetic and Germplasm Enhancement, Agronomy College, Gansu Agricultural University, Lanzhou, China; Università degli Studi della Campania Luigi Vanivitelli, DISTABIF, Caserta, Italy; Far East Federal University (FEFU), Vladivostok, Russky Island, Russian Federation; Departamento de Sistemas y Recursos Naturales, Universidad Politécnica de Madrid, Madrid, Spain

Recommended Citation:
Dannenmann M.,Díaz-Pinés E.,Kitzler B.,et al. Postfire nitrogen balance of Mediterranean shrublands: Direct combustion losses versus gaseous and leaching losses from the postfire soil mineral nitrogen flush[J]. Global Change Biology,2018-01-01,24(10)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Dannenmann M.]'s Articles
[Díaz-Pinés E.]'s Articles
[Kitzler B.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Dannenmann M.]'s Articles
[Díaz-Pinés E.]'s Articles
[Kitzler B.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Dannenmann M.]‘s Articles
[Díaz-Pinés E.]‘s Articles
[Kitzler B.]‘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.