Responses of soil nitrous oxide flux to soil environmental factors in a subtropical coniferous plantation: A boundary line analysis
文献类型：期刊论文
| 作者 | Yu, Guangxia1; Cheng, Shulan1; Fang, Huajun1,2,3; Tian, Jing2; Xu, Meng2; Yu, Guirui2; He, Shun1; Geng, Jing2; Cao, Zicheng1 |
| 刊名 | EUROPEAN JOURNAL OF SOIL BIOLOGY
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 86页码:16-25 |
| 关键词 | Atmospheric N deposition Soil N2O flux Soil driving factors Boundary line approach Subtropical plantation forest |
| ISSN号 | 1164-5563 |
| DOI | 10.1016/j.ejsobi.2018.02.002 |
| 通讯作者 | Cheng, Shulan(slcheng@ucas.ac.cn) ; Fang, Huajun(fanghj@igsnrr.ac.cn) |
| 英文摘要 | Soil N2O responds differently to various soil variables; moreover these driving variables usually have low explanatory capacity of soil N2O flux variability. Anthropogenic nitrogen (N) deposition inputs to the subtropical plantation forests markedly increase N2O emission from soils, but the relative contribution of deposited NH4+ and NO3- is not well understood. Based on a two-type (NH4Cl and NaNO3) and three-level (0, 40, 120 kg N ha(-1) yr(-1)) N addition experiment, we simultaneously determined soil N2O flux and related soil variables once a week in 2015. Boundary line analysis was used to describe the maximum responses of soil N2O fluxes to different soil variables. Four years of N addition led to significant accumulations of soil NH4+-N and NO3--N, thereby accelerating soil acidification. Nitrogen addition significantly increased soil N2O fluxes by 4.7-19.3 folds relative to control; moreover, the promotions to soil N2O emission and soil acidification were greater with ammonium-N addition than with nitrate-N addition. The relationships between the maximum soil N2O fluxes and individual soil variables were well fitted to the Gaussian equations, and the optimum values of soil temperature, moisture, pH, and NO3--N content indicate that nitrification dominated soil N2O production. Overall, our results suggest that exogenous NH4+ input to the subtropical plantation appears to have greater negative effects on soil acidification and N2O emission compared with NO3- input. Boundary line analysis well depicts the shape and magnitude of response functions of soil N2O fluxes against soil variables, which should be incorporated into terrestrial ecosystem process models. |
| WOS关键词 | AMMONIA-OXIDIZING ARCHAEA ; FILLED PORE-SPACE ; N2O EMISSIONS ; FOREST SOILS ; NITRIC-OXIDE ; TERRESTRIAL ECOSYSTEMS ; PHOSPHORUS ADDITIONS ; AGRICULTURAL SOILS ; CARBON-DIOXIDE ; NORWAY SPRUCE |
| 资助项目 | National Natural Science Foundation of China[31770558] ; National Natural Science Foundation of China[41471212] ; National Natural Science Foundation of China[31470558] ; National Key R&D Program of China[2017YFA0604804] ; National Key R&D Program of China[2017YFA0604802] ; National Key R&D Program of China[2016YFC0500603] ; National Key R&D Program of China[2016YFC0503603] ; Youth Innovation Research Team Project[LENOM2016Q0004] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000436056400003 |
| 出版者 | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; National Key R&D Program of China ; Youth Innovation Research Team Project |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/54621]  |
| 专题 | 地理科学与资源研究所_生态系统研究网络观测与模拟重点实验室_CERN水分分中心 |
| 通讯作者 | Cheng, Shulan; Fang, Huajun |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.11A Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Guangxia,Cheng, Shulan,Fang, Huajun,et al. Responses of soil nitrous oxide flux to soil environmental factors in a subtropical coniferous plantation: A boundary line analysis[J]. EUROPEAN JOURNAL OF SOIL BIOLOGY,2018,86:16-25. |
| APA | Yu, Guangxia.,Cheng, Shulan.,Fang, Huajun.,Tian, Jing.,Xu, Meng.,...&Cao, Zicheng.(2018).Responses of soil nitrous oxide flux to soil environmental factors in a subtropical coniferous plantation: A boundary line analysis.EUROPEAN JOURNAL OF SOIL BIOLOGY,86,16-25. |
| MLA | Yu, Guangxia,et al."Responses of soil nitrous oxide flux to soil environmental factors in a subtropical coniferous plantation: A boundary line analysis".EUROPEAN JOURNAL OF SOIL BIOLOGY 86(2018):16-25. |
入库方式： OAI收割
来源：地理科学与资源研究所
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