Effects of Nitrogen Addition on Potential Soil Nitrogen-Cycling Processes in a Temperate Forest Ecosystem
文献类型：期刊论文
| 作者 | Bai, Edith1; Sun, Jianfei1,2; Peng, Bo1,2; Li, Wei1,2; Qu, Guifang1,2; Dai, Weiwei1; Dai, Guanhua1; Jiang, Ping1; Han, Shijie1 |
| 刊名 | SOIL SCIENCE
 |
| 出版日期 | 2016 |
| 卷号 | 181期号:1页码:29-38 |
| ISSN号 | 0038-075X |
| 关键词 | Nitrogen Deposition N-15 Tracing Gross n Transformation Rates Microbial c And n |
| DOI | 10.1097/SS.0000000000000134 |
| 英文摘要 | Anthropogenic nitrogen (N) deposition substantially alters N cycling in terrestrial ecosystems because of its effects on soil physicochemical properties and soil microbes. Responses of N transformation processes to consecutive N additions are unclear, pointing to a lack of systematic understanding of N cycling under long-term N addition. This work combines N-15 tracing laboratory incubation with the FLUAZ model to study potential gross N-cycling processes in a temperate forest ecosystem in eastern Asia after 6 years of consecutive N additions at a rate of 50 kg N ha(-1) year(-1). Soils from plots that received N additions had greater gross N mineralization probably because of higher soil carbon (C) and N than soils from control plots. Gross nitrification in soil from plots receiving N additions was inhibited likely because of lower pH in these plots. Higher NH4+ concentrations under N addition increased N immobilization by microbes, but NO3- immobilization was much lower than NH4+ immobilization. Our results also show that N remineralization was stimulated by N addition and that microbes in N addition plots had greater N uptake probably because they adapted to high N concentration that led to accelerated microbial N turnover rate. This research highlights the importance of considering the effects of increasing N deposition on N processes mediated by microbes. |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| 出版者 | LIPPINCOTT WILLIAMS & WILKINS |
| WOS记录号 | WOS:000369989300004 |
| 源URL | [http://210.72.129.5/handle/321005/122463]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Bai, Edith |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Edith,Sun, Jianfei,Peng, Bo,et al. Effects of Nitrogen Addition on Potential Soil Nitrogen-Cycling Processes in a Temperate Forest Ecosystem[J]. SOIL SCIENCE,2016,181(1):29-38. |
| APA | Bai, Edith.,Sun, Jianfei.,Peng, Bo.,Li, Wei.,Qu, Guifang.,...&Han, Shijie.(2016).Effects of Nitrogen Addition on Potential Soil Nitrogen-Cycling Processes in a Temperate Forest Ecosystem.SOIL SCIENCE,181(1),29-38. |
| MLA | Bai, Edith,et al."Effects of Nitrogen Addition on Potential Soil Nitrogen-Cycling Processes in a Temperate Forest Ecosystem".SOIL SCIENCE 181.1(2016):29-38. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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