Nitrogen addition reduces dissolved organic carbon leaching in a montane forest
文献类型：期刊论文
| 作者 | Chang, Ruiying1 ; Li, Na2,3; Sun, Xiangyang1; Hu, Zhaoyong1; Bai, Xuesong1; Wang, Genxu1
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| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
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| 出版日期 | 2018-12-01 |
| 卷号 | 127页码:31-38 |
| 关键词 | Anthropogenic nitrogen deposition Zero-tension lysimeters Seasonal pattern DOC production DOC retention Extracellular enzyme activity |
| ISSN号 | 0038-0717 |
| DOI | 10.1016/j.soilbio.2018.09.006 |
| 通讯作者 | Wang, Genxu(wanggx@imde.ac.cn) |
| 英文摘要 | Dissolved organic carbon (DOC) plays a significant role in the forest soil carbon cycle and can be regulated by nitrogen (N) addition. However, the regulatory direction, mechanism and seasonal pattern of DOC under N addition are less clear. Here, in a montane evergreen forest located at the eastern edge of the Tibetan Plateau, 2 levels of N were applied over 2 years to determine the effects of N addition on DOC release from organic (O layer) and mineral soil. Frequent sampling revealed that high levels of N addition could decrease the concentration of DOC and the flux from the O layer but not from mineral soil and that moderate N addition had no effect on DOC leaching from either the O or mineral layer. The effect of N addition on DOC leaching from the O layer was seasonally dependent, showing a significant reduction in DOC leaching during autumn/winter but no changes during summer and spring. This seasonally different response of DOC to N addition affected the seasonal pattern of DOC leaching. Soil and leachate pH were not influenced by N addition in the short term, indicating that there was not enough difference in DOC retention by mineral soil to significantly affect DOC leaching under N addition. In contrast, N addition-derived reduction in DOC leaching was likely to be due to suppressed fresh litterfall-derived DOC production during autumn/winter; this speculation was supported by lower values of O layer water-extractable organic carbon and microbial biomass carbon as well as lower saccharase and cellulose activities found with high N addition. These results suggested that the processes in control of DOC leaching and their responses to N addition were different for O and mineral soil and that short-term N addition could decrease O-layer DOC leaching, which is likely associated with decreased DOC production rather than greater DOC retention. |
| WOS关键词 | NORTHERN HARDWOOD FORESTS ; MICROBIAL BIOMASS-C ; SOIL SOLUTION ; MATTER DECOMPOSITION ; TEMPERATE FORESTS ; MINERAL SOIL ; DEPOSITION ; ECOSYSTEM ; LITTER ; DOC |
| 资助项目 | National Key Research and Development Program of China[2016YFC0502105] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-DQC006] ; 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS[SDS-135-1702] ; Youth Innovation Promotion Association CAS[2018406] ; Natural Science Foundation of China[41301219] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000449895600004 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Key Research and Development Program of China ; Key Research Program of Frontier Sciences, CAS ; 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS ; Youth Innovation Promotion Association CAS ; Natural Science Foundation of China |
| 源URL | [http://ir.imde.ac.cn/handle/131551/24374]  |
| 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 |
| 通讯作者 | Wang, Genxu |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Environm Evolvement & Regulat, Chengdu, Sichuan, Peoples R China 2.Chinese Acad Sci, Chengdu Inst Biol, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliz, Chengdu, Sichuan, Peoples R China 3.Chinese Acad Sci, Chengdu Inst Biol, Ecol Restorat & Biodivers Conservat Key Lab Sichu, Chengdu, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chang, Ruiying,Li, Na,Sun, Xiangyang,et al. Nitrogen addition reduces dissolved organic carbon leaching in a montane forest[J]. SOIL BIOLOGY & BIOCHEMISTRY,2018,127:31-38. |
| APA | Chang, Ruiying,Li, Na,Sun, Xiangyang,Hu, Zhaoyong,Bai, Xuesong,&Wang, Genxu.(2018).Nitrogen addition reduces dissolved organic carbon leaching in a montane forest.SOIL BIOLOGY & BIOCHEMISTRY,127,31-38. |
| MLA | Chang, Ruiying,et al."Nitrogen addition reduces dissolved organic carbon leaching in a montane forest".SOIL BIOLOGY & BIOCHEMISTRY 127(2018):31-38. |
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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