globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13766
Global forest carbon uptake due to nitrogen and phosphorus deposition from 1850 to 2100
Author: Wang R.; Goll D.; Balkanski Y.; Hauglustaine D.; Boucher O.; Ciais P.; Janssens I.; Penuelas J.; Guenet B.; Sardans J.; Bopp L.; Vuichard N.; Zhou F.; Li B.; Piao S.; Peng S.; Huang Y.; Tao S.
Source Publication: Global Change Biology
ISSN: 13541013
Publishing Year: 2017
Language: 英语
Keyword: Aerosol ; Forest carbon sink ; Nitrogen deposition ; Nutrient limitation ; Nutrient retention ; Phosphorus deposition ; Stoichiometry
English Abstract: Spatial patterns and temporal trends of nitrogen (N) and phosphorus (P) deposition are important for quantifying their impact on forest carbon (C) uptake. In a first step, we modeled historical and future change in the global distributions of the atmospheric deposition of N and P from the dry and wet deposition of aerosols and gases containing N and P. Future projections were compared between two scenarios with contrasting aerosol emissions. Modeled fields of N and P deposition and P concentration were evaluated using globally distributed in situ measurements. N deposition peaked around 1990 in European forests and around 2010 in East Asian forests, and both increased sevenfold relative to 1850. P deposition peaked around 2010 in South Asian forests and increased 3.5-fold relative to 1850. In a second step, we estimated the change in C storage in forests due to the fertilization by deposited N and P (Cν dep), based on the retention of deposited nutrients, their allocation within plants, and C:N and C:P stoichiometry. Cν dep for 1997-2013 was estimated to be 0.27 ± 0.13 Pg C year-1 from N and 0.054 ± 0.10 Pg C year-1 from P, contributing 9% and 2% of the terrestrial C sink, respectively. Sensitivity tests show that uncertainty of Cν dep was larger from P than from N, mainly due to uncertainty in the fraction of deposited P that is fixed by soil. CP dep was exceeded by CN dep over 1960-2007 in a large area of East Asian and West European forests due to a faster growth in N deposition than P. Our results suggest a significant contribution of anthropogenic P deposition to C storage, and additional sources of N are needed to support C storage by P in some Asian tropical forests where the deposition rate increased even faster for P than for N. © 2017 John Wiley & Sons Ltd.
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Document Type: 期刊论文
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Affiliation: Laboratoire des Sciences du Climat et de l'Environnement CEA CNRS UVSQ Gif-sur-Yvette France; Sino-French Institute for Earth System Science College of Urban and Environmental Sciences Peking University Beijing China; Department of Global Ecology Carnegie Institution for Science Stanford, CA USA; Laboratoire de Météorologie Dynamique IPSL/CNRS Université Pierre et Marie Curie Paris France; Department of Biology University of Antwerp Wilrijk Belgium; Global Ecology Unit CREAF-CSIC-UAB CSIC Bellaterra Spain; CREAF Cerdanyola del Vallès Spain

Recommended Citation:
Wang R.,Goll D.,Balkanski Y.,et al. Global forest carbon uptake due to nitrogen and phosphorus deposition from 1850 to 2100[J]. Global Change Biology,2017-01-01
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