Influences of N deposition on soil microbial respiration and its temperature sensitivity depend on N type in a temperate forest
文献类型：期刊论文
| 作者 | Wang, Qingkui1,2; Liu, Shengen1,4; Wang, Yanping3; Tian, Peng1,4; Sun, Tao1 |
| 刊名 | AGRICULTURAL AND FOREST METEOROLOGY
 |
| 出版日期 | 2018-10-15 |
| 卷号 | 260页码:240-246 |
| 关键词 | Microbial respiration Temperature sensitivity Nitrogen availability Soil microbial community |
| ISSN号 | 0168-1923 |
| DOI | 10.1016/j.agrformet.2018.06.018 |
| 英文摘要 | Knowledge on temperature sensitivity (Q(10)) of soil microbial respiration is crucial to improving the accuracy in predicting soil organic carbon (C) dynamics in climate-C models. However, the responses of soil microbial respiration and its Q(10) to nitrogen (N) deposition, particularly different N types, remain unclear. Therefore, we incubated surface soils collected from a temperate forest receiving simulated N deposition under 15 degrees C and 25 degrees C for 150 days to examine the effects of different types of N deposition on soil microbial respiration and its Q(10) and reveal their underlying mechanisms. A mixture of inorganic and organic N had the highest suppression on soil microbial respiration, followed by organic N and inorganic N. This suggested that the suppression effect of atmospheric N deposition on microbial respiration was underestimated by previous studies based on single inorganic N. Q(10) values in all soils ranged from 1.96 to 2.76 with a mean of 2.41 at the end of incubation. Inorganic N significantly increased the averaged Q(10) values, suggesting that inorganic N caused soil microbial respiration to become more sensitive to climate warming than organic N. Across the incubation period, 4:210 values exhibited substantial temporal variation, which depended on the N type. Soil microbial respiration was negatively controlled by NO3--N and bacteria:fungi and gram-positive:gram-negative bacteria ratios. However, Q(10) was positively controlled by soil NH4+ -N. Our results highlighted the effects of inorganic and organic N deposition on microbial respiration and its potential mechanisms and implied the necessity of considering the N type when predicting soil C cycling and dynamics in increasing N deposition scenario. |
| 资助项目 | National Key Research and Development Program of China[2016YFA0600801] ; National Natural Science Foundation of China[31570466] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB15010301] ; Shandong Double Tops Program[SYL2017XTTD03] |
| WOS研究方向 | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000445306700022 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://210.72.129.5/handle/321005/123078]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Wang, Qingkui; Wang, Yanping |
| 作者单位 | 1.Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Huitong Expt Stn Forest Ecol, Huitong 418307, Peoples R China 3.Shandong Agr Univ, Coll Forestry, Tai An 271018, Shandong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Qingkui,Liu, Shengen,Wang, Yanping,et al. Influences of N deposition on soil microbial respiration and its temperature sensitivity depend on N type in a temperate forest[J]. AGRICULTURAL AND FOREST METEOROLOGY,2018,260:240-246. |
| APA | Wang, Qingkui,Liu, Shengen,Wang, Yanping,Tian, Peng,&Sun, Tao.(2018).Influences of N deposition on soil microbial respiration and its temperature sensitivity depend on N type in a temperate forest.AGRICULTURAL AND FOREST METEOROLOGY,260,240-246. |
| MLA | Wang, Qingkui,et al."Influences of N deposition on soil microbial respiration and its temperature sensitivity depend on N type in a temperate forest".AGRICULTURAL AND FOREST METEOROLOGY 260(2018):240-246. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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