XTBG OpenIR  > 全球变化研究组
Effects of Litter Inputs on N2O Emissions from a Tropical Rainforest in Southwest China
Gao, Jinbo; Zhou, Wenjun; Liu, Yuntong; Zhu, Jing; Sha, Liqing; Song, Qinhai; Ji, Hongli; Lin, Youxing; Fei, Xuehai; Bai, Xiaolong; Zhang, Xiang; Deng, Yun; Deng, Xiaobao; Yu, Guirui; Zhang, Junhui; Zheng, Xunhua; Grace, John; Zhang, Yiping; Zhou, WJ
2018
Source PublicationECOSYSTEMS
ISSN1432-9840
Volume21Issue:5Pages:1013-1026
AbstractLitter inputs are expected to have a strong impact on soil N2O efflux. This study aimed to assess the effects of the litter decomposition process and nutrient efflux from litter to soil on soil N2O efflux in a tropical rainforest. A paired study with a control (L) treatment and a litter-removed (NL) treatment was followed for 2 years, continuously monitoring the effects of these treatments on soil N2O efflux, fresh litter input, decomposed litter carbon (LCI) and nitrogen (LNI), soil nitrate (NO3 (-)-N), ammonium (NH4 ()-N), dissolved organic carbon (DOC), and dissolved nitrogen (DN). Soil N2O flux was 0.48 and 0.32 kg N2O-N ha(-1) year(-1) for the L and NL treatments, respectively. Removing the litter caused a decrease in the annual soil N2O emission by 33%. The flux values from the litter layer were higher in the rainy season as compared to the dry season (2.10 /- 0.28 vs. 1.44 /- 0.35 mu g N m(-2) h(-1)). The N2O fluxes were significantly correlated with the soil NO3 (-)-N contents (P < 0.05), indicating that the N2O emission was derived mainly from denitrification as well as other NO3 (-) reduction processes. Suitable soil temperature and moisture sustained by rainfall were jointly attributed to the higher soil N2O fluxes of both treatments in the rainy season. The N2O fluxes from the L were mainly regulated by LCI, whereas those from the NL were dominated jointly by soil NO3 (-) content and temperature. The effects of LCI and LNI on the soil N2O fluxes were the greatest in the 2 months after litter decomposition. Our results show that litter may affect not only the variability in the quantity of N2O emitted, but also the mechanisms that govern N2O production. However, further studies are still required to elucidate the impacting mechanisms of litter decomposition on N2O emission from tropical forests.
Department其他
KeywordLitter Removal Nutrient Efflux Litter-decomposed Carbon Litter-decomposed Nitrogen N2o Emissions Tropical Rainforest
Subject AreaEnvironmental Sciences & Ecology
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10993
Collection全球变化研究组
森林生态研究组
Corresponding AuthorZhou, WJ
Recommended Citation
GB/T 7714
Gao, Jinbo,Zhou, Wenjun,Liu, Yuntong,et al. Effects of Litter Inputs on N2O Emissions from a Tropical Rainforest in Southwest China[J]. ECOSYSTEMS,2018,21(5):1013-1026.
APA Gao, Jinbo.,Zhou, Wenjun.,Liu, Yuntong.,Zhu, Jing.,Sha, Liqing.,...&Zhou, WJ.(2018).Effects of Litter Inputs on N2O Emissions from a Tropical Rainforest in Southwest China.ECOSYSTEMS,21(5),1013-1026.
MLA Gao, Jinbo,et al."Effects of Litter Inputs on N2O Emissions from a Tropical Rainforest in Southwest China".ECOSYSTEMS 21.5(2018):1013-1026.
Files in This Item:
File Name/Size DocType Version Access License
Effects of Litter In(1059KB) 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Gao, Jinbo]'s Articles
[Zhou, Wenjun]'s Articles
[Liu, Yuntong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Gao, Jinbo]'s Articles
[Zhou, Wenjun]'s Articles
[Liu, Yuntong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Gao, Jinbo]'s Articles
[Zhou, Wenjun]'s Articles
[Liu, Yuntong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Effects of Litter Inputs on N2O Emissions from a Tropical Rainforest in Southwest China.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.