Effects of nitrogen addition on soil methane uptake in global forest biomes

被引：34
作者：
Xia, Nan [1 ,2 ]
Du, Enzai [1 ,2 ]
Wu, Xinhui [1 ,2 ]
Tang, Yang [1 ,2 ]
Wang, Yang [1 ,2 ]
de Vries, Wim [3 ,4 ]
机构：
[1] Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
[2] Beijing Normal Univ, Fac Geog Sci, Sch Nat Resources, Beijing 100875, Peoples R China
[3] Wageningen Univ & Res, Environm Res, POB 47, NL-6700 AA Wageningen, Netherlands
[4] Wageningen Univ & Res, Environm Syst Anal Grp, POB 47, NL-6700 AA Wageningen, Netherlands
来源：
ENVIRONMENTAL POLLUTION | 2020年 / 264卷
基金：
中国国家自然科学基金;
关键词：
Nitrogen deposition; Nitrogen addition; Soil methane uptake; Forest; ATMOSPHERIC METHANE; CARBON SEQUESTRATION; DEPOSITION; OXIDATION; CONSUMPTION; TEMPERATE; CHEMISTRY; RESPONSES; SULFUR; MODEL;
D O I：
10.1016/j.envpol.2020.114751
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Nitrogen (N) deposition has been conventionally thought to decrease forest soil methane (CH4) uptake, while the biome specific and dose dependent effect is poorly understood. Based on a meta-analysis of 63 N addition trials from 7 boreal forests, 8 temperate forests, 13 subtropical and 4 tropical forests, we evaluated the effects of N addition on soil CH4 uptake fluxes across global forest biomes. When combining all N addition levels, soil CH4 uptake was insignificantly decreased by 7% in boreal forests, while N addition significantly decreased soil CH4 uptake by 39% in temperate forests and by 21% in subtropical and tropical forests, respectively. Meta-regression analyses, however, indicated a shift from a positive to a negative effect on soil CH4 uptake with increasing N additions both in boreal forests (threshold = 48 kg N ha(-1) yr(-1)) and temperate forests (threshold = 27 kg N ha(-1) yr(-1)), while no such shift was found in subtropical and tropical forests. Considering that current N deposition to most boreal and temperate forests is below the abovementioned thresholds, N deposition likely exerts a positive to neutral effect on soil CH4 uptake in both forest biomes. Our results provide new insights on the biome specific and dose dependent effect of N addition on soil CH4 sink in global forests and suggest that the current understanding that N deposition decreases forest soil CH4 uptake is flawed by high levels of experimental N addition. (C) 2020 Elsevier Ltd. All rights reserved.
引用
收藏
页数：6
相关论文
共 35 条
[21]   A review of nitrogen enrichment effects on three biogenic GHGs: the CO2 sink may be largely offset by stimulated N2O and CH4 emission [J].
Liu, Lingli ;
Greaver, Tara L. .
ECOLOGY LETTERS, 2009, 12 (10) :1103-1117
[22]   Soil Methanotrophy Model (MeMo v1.0): a process-based model to quantify global uptake of atmospheric methane by soil [J].
Murguia-Flores, Fabiola ;
Arndt, Sandra ;
Ganesan, Anita L. ;
Murray-Tortarolo, Guillermo ;
Hornibrook, Edward R. C. .
GEOSCIENTIFIC MODEL DEVELOPMENT, 2018, 11 (06) :2009-2032
[23]   Declines in methane uptake in forest soils [J].
Ni, Xiangyin ;
Groffman, Peter M. .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2018, 115 (34) :8587-8590
[24]   Methane oxidation in temperate soils: effects of inorganic N [J].
Reay, DS ;
Nedwell, DB .
SOIL BIOLOGY & BIOCHEMISTRY, 2004, 36 (12) :2059-2065
[25]   Consumption of atmospheric methane by soils: A process-based model [J].
Ridgwell, AJ ;
Marshall, SJ ;
Gregson, K .
GLOBAL BIOGEOCHEMICAL CYCLES, 1999, 13 (01) :59-70
[26]   Responses of forest ecosystems in Europe to decreasing nitrogen deposition [J].
Schmitz, Andreas ;
Sanders, Tanja G. M. ;
Bolte, Andreas ;
Bussotti, Filippo ;
Dirnboeck, Thomas ;
Johnson, Jim ;
Penuelas, Josep ;
Pollastrini, Martina ;
Prescher, Anne-Katrin ;
Sardans, Jordi ;
Verstraeten, Arne ;
de Vries, Wim .
ENVIRONMENTAL POLLUTION, 2019, 244 :980-994
[27]   MECHANISTIC ANALYSIS OF AMMONIUM INHIBITION OF ATMOSPHERIC METHANE CONSUMPTION IN FOREST SOILS [J].
SCHNELL, S ;
KING, GM .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1994, 60 (10) :3514-3521
[28]   Global-scale impacts of nitrogen deposition on tree carbon sequestration in tropical, temperate, and boreal forests: A meta-analysis [J].
Schulte-Uebbing, Lena ;
de Vries, Wim .
GLOBAL CHANGE BIOLOGY, 2018, 24 (02) :E416-E431
[29]   Spatial variation of modelled total, dry and wet nitrogen deposition to forests at global scale [J].
Schwede, Donna B. ;
Simpson, David ;
Tan, Jiani ;
Fu, Joshua S. ;
Dentener, Frank ;
Du, Enzai ;
deVries, Wim .
ENVIRONMENTAL POLLUTION, 2018, 243 :1287-1301
[30]   CH4 UPTAKE BY TEMPERATE FOREST SOIL - EFFECT OF N INPUT AND SOIL ACIDIFICATION [J].
SITAULA, BK ;
BAKKEN, LR ;
ABRAHAMSEN, G .
SOIL BIOLOGY & BIOCHEMISTRY, 1995, 27 (07) :871-880
1234