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Nitrous Oxide Emission Rates over 10 Years in an Alpine Meadow on the Tibetan Plateau
Cao Yingfang1,2; Ke Xun1,2; Guo Xiaowei1; Cao Guangmin1; Du Yangong1
2018
发表期刊POLISH JOURNAL OF ENVIRONMENTAL STUDIES
卷号27期号:3页码:1353-1358
文章类型Article
摘要The alpine grassland ecosystem covering about 85% of the Tibetan plateau is fragile and sensitive to natural and anthropogenic disturbances. However, it is unclear how nitrous oxide (N2O) has varied over the last 10 years. In order to accurately estimate the regional N2O emissions budget, the N2O levels, environmental factors, and biomass were investigated on a yearly, monthly, and seasonal basis from 2000 to 2014 in an alpine meadow. The results showed that there was an overall declining trend in emissions over 10 years, during which the two maximum emission rates were 64.8 +/- 11.1 and 41.8 +/- 18.2 mu g m(-2) h(-1) (in 2001 and 2006). The average N2O emissions rate was about 38.4 +/- 3.3 mu g m(-2) h(-1). Pearson correlation demonstrated that soil and air temperature exerted a crucial influence on N2O, followed by precipitation and aboveground biomass, but the effect of soil moisture at a depth of 10 cm was negative. Multiple linear regressions showed a good relationship between N2O and all environmental factors. Future scenarios of wetter and warmer weather would noticeably increase alpine meadow N2O emissions on the Tibetan Plateau.
关键词N2o Emissions Alpine Meadow Temperature Precipitation Aboveground Biomass
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.15244/pjoes/76795
关键词[WOS]N2O FLUXES ; CHINA ; SOIL ; WATER ; GRASSLAND ; ECOSYSTEM ; METHANE ; MODEL
收录类别SCI
语种英语
项目资助者National Natural Science Foundation of China(31470530 ; Qinghai innovation platform construc-tion project(2017-ZJ-Y20) ; National Key Fundamental Plan for Soil System Carbon Dymanic and Mechamism Response for Global Climate Change(2014CB954002) ; 31770532 ; 31400483)
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
WOS记录号WOS:000427520400041
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/13339
专题中国科学院西北高原生物研究所
作者单位1.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Restorat & Ecol Cold Reg Qinghai, Xining, Qinghai, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
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Cao Yingfang,Ke Xun,Guo Xiaowei,et al. Nitrous Oxide Emission Rates over 10 Years in an Alpine Meadow on the Tibetan Plateau[J]. POLISH JOURNAL OF ENVIRONMENTAL STUDIES,2018,27(3):1353-1358.
APA Cao Yingfang,Ke Xun,Guo Xiaowei,Cao Guangmin,&Du Yangong.(2018).Nitrous Oxide Emission Rates over 10 Years in an Alpine Meadow on the Tibetan Plateau.POLISH JOURNAL OF ENVIRONMENTAL STUDIES,27(3),1353-1358.
MLA Cao Yingfang,et al."Nitrous Oxide Emission Rates over 10 Years in an Alpine Meadow on the Tibetan Plateau".POLISH JOURNAL OF ENVIRONMENTAL STUDIES 27.3(2018):1353-1358.
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