Mechanisms underlying soil microbial regulation of available phosphorus in a temperate forest exposed to long-term nitrogen addition
文献类型：期刊论文
| 作者 | Wang, Shiqi1; Song, Minghua2; Wang, Chunmei1; Dou, Xiaomin1; Wang, Xinqing1; Li, Xingyue1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-12-15 |
| 卷号 | 904页码:12 |
| ISSN号 | 0048-9697 |
| 关键词 | Phosphorus cycling Nitrogen addition Functional genes Phosphorus solubilizing microbes Phosphatase |
| DOI | 10.1016/j.scitotenv.2023.166403 |
| 通讯作者 | Wang, Chunmei(wangcm@bjfu.edu.cn) |
| 英文摘要 | With exogenous nitrogen (N) input into soil, phosphorus (P) could become a limiting nutrient for plant growth. Soil microbes play a crucial role in regulating soil P cycle and availability. P functional genes, further, regulate soil P availability. It is unclear how the addition of N in different chemical forms and rates influences the composition of soil microbes associated with P cycling and the abundance of P functional genes. A long-term experiment of N addition in three chemical forms with two levels in a temperate forest was performed to reveal the influences and the underlying mechanisms. We found that both chemical N forms and N rates selected for different P-solubilizing microbes. Ammonia form-N increased the abundances of P-solubilizing bacteria at low and high rates. Continuous N deposition included a significant decrease in soil pH and inhibited the viability and activity of bacterial communities in soil, especially the P-solubilizing bacteria. Thus, it restricted inorganic P mobilization and led to a decrease in soil available P. In addition, ammonium-N enhanced the relative abundance of most of the functional genes related to organic P mineralization, while nitrate-N presented a decrease trend. Ammonium-N significantly decreased most of the functional genes relevant to P transportation, whereas the other chemical N forms did not change them. Although N-addition consistently decreased the functional genes relevant to inorganic P solubilization, two of them (ppx and ppa) were the exceptions and showed an increase trend. N addition also decreased soil pH and altered soil properties, and indirectly contributed to the changes in community composition of P-solubilizing microbes and the abundances of multiple P functional genes. Our results provide a mechanistic explanation for the regulation of microbes on N-induced available P limitation via tuning the compositions of P-solubilizing microbes and the abundances of multiple P functional genes |
| WOS关键词 | RESPONSES ; DEPOSITION ; BIOMASS |
| 资助项目 | National Natural Science Foundation of China[41971024] ; National Natural Science Foundation of China[41373069] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001061522100001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/194724]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Chunmei |
| 作者单位 | 1.Beijing Forestry Univ, Coll Environm Sci & Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, A11,Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shiqi,Song, Minghua,Wang, Chunmei,et al. Mechanisms underlying soil microbial regulation of available phosphorus in a temperate forest exposed to long-term nitrogen addition[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,904:12. |
| APA | Wang, Shiqi,Song, Minghua,Wang, Chunmei,Dou, Xiaomin,Wang, Xinqing,&Li, Xingyue.(2023).Mechanisms underlying soil microbial regulation of available phosphorus in a temperate forest exposed to long-term nitrogen addition.SCIENCE OF THE TOTAL ENVIRONMENT,904,12. |
| MLA | Wang, Shiqi,et al."Mechanisms underlying soil microbial regulation of available phosphorus in a temperate forest exposed to long-term nitrogen addition".SCIENCE OF THE TOTAL ENVIRONMENT 904(2023):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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