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Responses of soil respiration to nitrogen addition in the Sanjiang Plain wetland, northeastern China
Wang, Jianbo1,2; Fu, Xiaoling1; Zhang, Zhen3; Li, Maihe3,4; Cao, Hongjie1; Zhou, Xiaoliang5; Ni, Hongwei1
Corresponding AuthorNi, Hongwei(nihongwei2000@163.com)
2019-01-31
Source PublicationPLOS ONE
ISSN1932-6203
Volume14Issue:1Pages:12
AbstractThis study was designed to test the hypothesis that nitrogen (N) addition leads to enhanced soil respiration (SR) in nitrogen deficient marsh. Here, we report the response of SR to simulated N deposition in a temperate marsh of northeastern China from June 2009 to September 2011. The experiment included three-levels of N treatment (control: no N addition, Low-N: 4g N m(-2) y(-1), and High-N: 8 g N m(-2) y(-1)). Our study showed various responses of SR to level and duration of N addition. Yearly SR was increased by 11.8%-15.2% (P<0.05) under Low-N addition during the three years, while SR showed a strong increase by 27.5% (P<0.05) in the first year and then decreased by 4.4% (P>0.05) and 15.4% (P<0.05) in the next two years under High-N addition. Soil respiration was positively correlated with soil temperature and negatively correlated with soil water content. High-N treatment reduced soil pH value (P<0.05). The negative response of SR to High-N addition in the following two years may attribute to lower microbial activity, microbial biomass and alteration in the microbial community due to lower soil pH, which consequently leads to decreased SR. Meanwhile, we found root biomass were increased under High-N addition. This implies that the increase of autotrophic respiration was lower than the decline of heterotrophic respiration in the following two years. Our findings suggest complex interactions between N deposition and SR, which is needed to be further investigated in the future studies.
Funding OrganizationNational Natural Science Foundation of China ; National Key R&D Program of China ; Special Research of Heilongjiang
DOI10.1371/journal.pone.0211456
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[31570485] ; National Natural Science Foundation of China[31170462] ; National Natural Science Foundation of China[31700424] ; National Key R&D Program of China[2016YFC0500405-02] ; Special Research of Heilongjiang[ZNJZ2017ZR01]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000457301600046
PublisherPUBLIC LIBRARY SCIENCE
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/131609
Collection中国科学院金属研究所
Corresponding AuthorNi, Hongwei
Affiliation1.Heilongjiang Acad Sci, Inst Nat Resources & Ecol, Harbin, Heilongjiang, Peoples R China
2.Northeast Forestry Univ, Harbin, Heilongjiang, Peoples R China
3.Swiss Fed Res Inst WSL, Birmensdorf, Switzerland
4.Chinese Acad Sci, Inst Appl Ecol, Shenyang, Jilin, Peoples R China
5.Honghe Natl Nat Reserve, Jiansanjiang, Heilongjiang, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jianbo,Fu, Xiaoling,Zhang, Zhen,et al. Responses of soil respiration to nitrogen addition in the Sanjiang Plain wetland, northeastern China[J]. PLOS ONE,2019,14(1):12.
APA Wang, Jianbo.,Fu, Xiaoling.,Zhang, Zhen.,Li, Maihe.,Cao, Hongjie.,...&Ni, Hongwei.(2019).Responses of soil respiration to nitrogen addition in the Sanjiang Plain wetland, northeastern China.PLOS ONE,14(1),12.
MLA Wang, Jianbo,et al."Responses of soil respiration to nitrogen addition in the Sanjiang Plain wetland, northeastern China".PLOS ONE 14.1(2019):12.
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