Microbes drive global soil nitrogen mineralization and availability
文献类型：期刊论文
| 作者 | Li, Zhaolei2; Tian, Dashuan2; Wang, Bingxue2; Wang, Jinsong2; Wang, Song2,3; Chen, Han Y. H.4; Xu, Xiaofeng1; Wang, Changhui5; He, Nianpeng2,3; Niu, Shuli2,3 |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 25期号:3页码:1078-1088 |
| 关键词 | croplands dominant factor microbial biomass natural ecosystems nitrogen availability nitrogen mineralization soil properties |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/gcb.14557 |
| 通讯作者 | Niu, Shuli(sniu@igsnrr.ac.cn) |
| 英文摘要 | Soil net nitrogen mineralization rate (N-min), which is critical for soil nitrogen availability and plant growth, is thought to be primarily controlled by climate and soil physical and/or chemical properties. However, the role of microbes on regulating soil N-min has not been evaluated on the global scale. By compiling 1565 observational data points of potential net N-min from 198 published studies across terrestrial ecosystems, we found that N-min significantly increased with soil microbial biomass, total nitrogen, and mean annual precipitation, but decreased with soil pH. The variation of N-min was ascribed predominantly to soil microbial biomass on global and biome scales. Mean annual precipitation, soil pH, and total soil nitrogen significantly influenced N-min through soil microbes. The structural equation models (SEM) showed that soil substrates were the main factors controlling N-min when microbial biomass was excluded. Microbe became the primary driver when it was included in SEM analysis. SEM with soil microbial biomass improved the N-min prediction by 19% in comparison with that devoid of soil microbial biomass. The changes in N-min contributed the most to global soil NH4+-N variations in contrast to climate and soil properties. This study reveals the complex interactions of climate, soil properties, and microbes on N-min and highlights the importance of soil microbial biomass in determining N-min and nitrogen availability across the globe. The findings necessitate accurate representation of microbes in Earth system models to better predict nitrogen cycle under global change. |
| WOS关键词 | ORGANIC-MATTER MINERALIZATION ; TEMPERATURE SENSITIVITY ; ENZYME-ACTIVITIES ; N MINERALIZATION ; CLIMATE-CHANGE ; CARBON-CYCLE ; BIOMASS ; RESPIRATION ; RESPONSES ; PH |
| 资助项目 | Ministry of Science and Technology of China[2016YFC0501803] ; Postdoctoral Science Foundation of China[2018M641459] ; CAS international collaboration program[131A11KYSB20180010] ; National Natural Science Foundation of China[31625006] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000459456700024 |
| 出版者 | WILEY |
| 资助机构 | Ministry of Science and Technology of China ; Postdoctoral Science Foundation of China ; CAS international collaboration program ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/49459]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Niu, Shuli |
| 作者单位 | 1.San Diego State Univ, Dept Biol, San Diego, CA 92182 USA 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 4.Lakehead Univ, Fac Nat Resources Management, Thunder Bay, ON, Canada 5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhaolei,Tian, Dashuan,Wang, Bingxue,et al. Microbes drive global soil nitrogen mineralization and availability[J]. GLOBAL CHANGE BIOLOGY,2019,25(3):1078-1088. |
| APA | Li, Zhaolei.,Tian, Dashuan.,Wang, Bingxue.,Wang, Jinsong.,Wang, Song.,...&Niu, Shuli.(2019).Microbes drive global soil nitrogen mineralization and availability.GLOBAL CHANGE BIOLOGY,25(3),1078-1088. |
| MLA | Li, Zhaolei,et al."Microbes drive global soil nitrogen mineralization and availability".GLOBAL CHANGE BIOLOGY 25.3(2019):1078-1088. |
入库方式： OAI收割
来源：地理科学与资源研究所
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