Spatiotemporal Variations in Nitrous Oxide Emissions from an Open Fen on the Qinghai-Tibetan Plateau: a 3-Year Study
文献类型：期刊论文
| 作者 | Chen, Huai1,2; Wang, Yanfen3; Wu, Ning2,6; Zhu, Dan2; Li, Wei1 ; Gao, Yongheng4; Zhu, Qiu'an1; Yang, Gang1; Peng, Changhui1,5
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| 刊名 | WATER AIR AND SOIL POLLUTION
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| 出版日期 | 2012-11-01 |
| 卷号 | 223期号:9页码:6025-6034 |
| 关键词 | Inter-annual variations Global change Extreme climate events Greenhouse gases Biogeochemistry |
| ISSN号 | 0049-6979 |
| 通讯作者 | Wu, Ning |
| 英文摘要 | To understand spatial and temporal variations of nitrous oxide (N2O) fluxes, we chose to measure N2O emissions from three plant stands (Kobresia tibetica, Carex muliensis, and Eleocharis valleculosa stands) in an open fen on the northeastern Qinghai-Tibetan plateau during the growing seasons from 2005 to 2007. The overall mean N2O emission rate was about 0.018 +/- 0.056 mgN m(-2)h(-1) during the growing seasons from 2005 to 2007, with highly spatiotemporal variations. The hummock (K. tibetica stand) emitted N2O at the highest rate about 0.025 +/- 0.051 mgNm(-2)h(-1), followed by the hollow stands: the E. valleculosa stand about 0.012 +/- 0.046 mgNm(-2)h(-1) and the C. muliensis stand about 0.017 +/- 0.068 mgNm(-2)h(-1). Within each stand, we also noted significant variations of N2O emission. We also observed the significant seasonal and inter-annual variation of N2O fluxes during the study period. The highest N2O emission rate was all recorded in July or August in each year from 2005 to 2007. Compared with the mean value of 2005, we found the drought of 2006 significantly increased N2O emissions by 104 times in the E. valleculosa stand, 45 times in K. tibetica stand, and 18 times in the C. muliensis stand. Though there was no significant relation between standing water depths and N2O emissions, we still considered it related to the spatiotemporal dynamics of soil water regime under climate change. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 类目[WOS] | Environmental Sciences ; Meteorology & Atmospheric Sciences ; Water Resources |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Water Resources |
| 关键词[WOS] | RIPARIAN BUFFER ZONES ; METHANE EMISSIONS ; WATER-TABLE ; BOREAL PEATLANDS ; CONSTRUCTED WETLANDS ; NORTHERN PEATLANDS ; CARBON-DIOXIDE ; N2O FLUXES ; CH4 ; CLIMATE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000310913400040 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/9915]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.NW A&F Univ, Lab Ecol Forecasting & Global Change, Yangling 712100, Peoples R China 2.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 5.Univ Quebec, Dept Sci Biol, Inst Sci Environm, Montreal, PQ H2X 3Y7, Canada 6.Int Ctr Integrated Mt Dev, Kathmandu, Nepal |
| 推荐引用方式 GB/T 7714 | Chen, Huai,Wang, Yanfen,Wu, Ning,et al. Spatiotemporal Variations in Nitrous Oxide Emissions from an Open Fen on the Qinghai-Tibetan Plateau: a 3-Year Study[J]. WATER AIR AND SOIL POLLUTION,2012,223(9):6025-6034. |
| APA | Chen, Huai.,Wang, Yanfen.,Wu, Ning.,Zhu, Dan.,Li, Wei.,...&Peng, Changhui.(2012).Spatiotemporal Variations in Nitrous Oxide Emissions from an Open Fen on the Qinghai-Tibetan Plateau: a 3-Year Study.WATER AIR AND SOIL POLLUTION,223(9),6025-6034. |
| MLA | Chen, Huai,et al."Spatiotemporal Variations in Nitrous Oxide Emissions from an Open Fen on the Qinghai-Tibetan Plateau: a 3-Year Study".WATER AIR AND SOIL POLLUTION 223.9(2012):6025-6034. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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