Nitrogen deposition and its effect on carbon storage in Chinese forests during 1981-2010
Gu, FX; Zhang, YD; Huang, M; Tao, B; Yan, HM; Guo, R; Li, J
2015
Source PublicationATMOSPHERIC ENVIRONMENT
ISSN1352-2310
Volume123Pages:171-179
AbstractHuman activities have resulted in dramatically increased nitrogen (N) deposition worldwide, which is closely linked to the carbon (C)-cycle processes and is considered to facilitate terrestrial C sinks. In this study, we firstly estimated the spatial and temporal variations of N deposition during 1981-2010 based on a new algorithm; then we used a newly improved process-based ecosystem model, CEVSA2, to examine the effects of N deposition on C storage in Chinese forests. The results show that the rate of N deposition increased by 0.058 g N m(-2) yr(-1) between 1981 and 2010. The N deposition rate in 2010 was 2.32 g N m(-2) yr(-1), representing a large spatial variation from 0 to 0.25 g N m(-2) yr(-1) on the northwestern Qinghai-Tibet Plateau to over 4.5 g N m(-2) yr(-1) in the southeastern China. The model simulations suggest that N deposition induced a 4.78% increase in the total C storage in Chinese forests, most of which accumulated in vegetation. C storage increased together with the increase in N deposition, in both space and time. However, N use efficiency was highest when N deposition was 0.4-1.0 g N m(-2) yr(-1). We suggest conducting more manipulation experiments and observations in different vegetation types, which will be greatly helpful to incorporate additional processes and mechanisms into the ecosystem modeling. Further development of ecosystem models and identification of C-N interactions will be important for determining the effects of N input on C cycles on both regional and global scales. (C) 2015 Elsevier Ltd. All rights reserved.
SubtypeJournal
KeywordNitrogen deposition Carbon storage Nitrogen use efficiency C-N interactions Chinese forests CEVSA2 model
Subject AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS Subject ExtendedEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS KeywordTERRESTRIAL ECOSYSTEMS ; SOIL RESPIRATION ; TEMPERATE FOREST ; HARVARD FOREST ; ELEVATED CO2 ; CRITICAL LOADS ; N DEPOSITION ; ADDITIONS ; SATURATION ; SEQUESTRATION
Indexed BySCI
Language英语
WOS IDWOS:000367498600018
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44332
Collection资源利用与环境修复重点实验室_资源地理与国土资源研究室_SCI/SSCI期刊论文
Recommended Citation
GB/T 7714
Gu, FX,Zhang, YD,Huang, M,et al. Nitrogen deposition and its effect on carbon storage in Chinese forests during 1981-2010[J]. ATMOSPHERIC ENVIRONMENT,2015,123:171-179.
APA Gu, FX.,Zhang, YD.,Huang, M.,Tao, B.,Yan, HM.,...&Li, J.(2015).Nitrogen deposition and its effect on carbon storage in Chinese forests during 1981-2010.ATMOSPHERIC ENVIRONMENT,123,171-179.
MLA Gu, FX,et al."Nitrogen deposition and its effect on carbon storage in Chinese forests during 1981-2010".ATMOSPHERIC ENVIRONMENT 123(2015):171-179.
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