Competition for nitrogen between plants and microorganisms in grasslands: effect of nitrogen application rate and plant acquisition strategy
文献类型：期刊论文
| 作者 | Zhang, Li2; Liu, Jie2,3; Xi, Jiazhen3; Pang, Rui1; Gunina, Anna4,5; Zhou, Shurong6 |
| 刊名 | BIOLOGY AND FERTILITY OF SOILS
 |
| 出版日期 | 2023-12-08 |
| 页码 | 10 |
| ISSN号 | 0178-2762 |
| 关键词 | Nitrogen cycling Plant functional composition Plant-microbial N competition Rhizosphere interactions Root traits |
| DOI | 10.1007/s00374-023-01782-w |
| 通讯作者 | Zhou, Shurong(zhshrong@hainanu.edu.cn) |
| 英文摘要 | Several studies have investigated how nitrogen (N) addition changes N competition between focal plant species and soil microorganisms; still, the impact on community-level plant-microbial N competition and the underlying mechanisms remain unclear. We conducted a short-term (4 h) N-15 labeling experiment in an alpine meadow subjected to 7 years of NH4NO3 additions (0, 5, 10, and 15 g N m(-2) year(-1)), by monitoring changes in soil properties (e.g., pH, Al3+, NH4+, NO3-), microbial biomass (MB), plant community composition, root traits (e.g., root length, root area, specific root length), as well as the plant (nine focal species and at the community level) and microbial N uptake. Change in the N competition between the nine focal plant species and microorganisms following N addition depended on the species. At the community level, the N addition rate did not affect plant-microbial competition for NH4+ and NO3- (P > 0.05). Nitrogen addition directly decreased NH4+ competition (beta = - 0.700) but indirectly increased because of improved plant uptake due to increased N availability (beta = 1.214). Competition for NO3- was dependent on microbial uptake (beta = - 0.953) and was influenced by opposing effects of increased N availability (beta = 1.342) and reduced MB (beta = - 0.439). Thus, the effects of increased soil N availability and suppressed MB on plant and microbial N competition offset each other, while the plant community had a negligible impact. Such responses should be taken into account for better predictions of the effect of N addition on net primary productivity and ecosystem stability. |
| WOS关键词 | INTRASPECIFIC VARIABILITY ; MICROBIAL IMMOBILIZATION ; BIODIVERSITY LOSS ; SOIL MICROBES ; MECHANISMS ; DIVERSITY ; NITRATE ; RETENTION ; AMMONIUM ; GROWTH |
| 资助项目 | National Natural Science Foundation of China |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:001117693200001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200391]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhou, Shurong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China 2.Nanjing Forestry Univ, Bamboo Res Inst, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing 210037, Peoples R China 3.Nanjing Forestry Univ, Coll Ecol & Environm, Nanjing 210037, Peoples R China 4.Univ Kassel, Dept Environm Chem, D-37213 Witzenhausen, Germany 5.RUDN Univ, Peoples Friendship Univ Russia, Moscow 117198, Russia 6.Hainan Univ, Coll Forestry, Key Lab Genet & Germplasm Innovat Trop Special For, Minist Educ, Haikou 570228, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Li,Liu, Jie,Xi, Jiazhen,et al. Competition for nitrogen between plants and microorganisms in grasslands: effect of nitrogen application rate and plant acquisition strategy[J]. BIOLOGY AND FERTILITY OF SOILS,2023:10. |
| APA | Zhang, Li,Liu, Jie,Xi, Jiazhen,Pang, Rui,Gunina, Anna,&Zhou, Shurong.(2023).Competition for nitrogen between plants and microorganisms in grasslands: effect of nitrogen application rate and plant acquisition strategy.BIOLOGY AND FERTILITY OF SOILS,10. |
| MLA | Zhang, Li,et al."Competition for nitrogen between plants and microorganisms in grasslands: effect of nitrogen application rate and plant acquisition strategy".BIOLOGY AND FERTILITY OF SOILS (2023):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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