Effects of nitrogen and phosphorus addition on the mineralization potential of soil organic carbon and the corresponding regulations in the Tibetan alpine grassland
文献类型：期刊论文
| 作者 | Wenjing Gao; Tian Ma ; Biwan Shi; Zhiying Yang; Yifan Li; Jianxiao Zhu; Jin-Sheng He
|
| 刊名 | Applied Soil Ecology
 |
| 出版日期 | 2024-02 |
| 卷号 | 196页码:1-9 |
| 关键词 | SOC Microbial richness and diversity Soil properties N and P addition |
| ISSN号 | 0929-1393 |
| DOI | 10.1016/j.apsoil.2025.105880 |
| 文献子类 | Article |
| 英文摘要 | As a crucial property for assessing the stability of soil organic carbon (SOC), the mineralization potential of SOC (RSOC) is often considered vital for soil carbon (C) dynamics. Previous studies have investigated the responses of RSOC and the corresponding regulation of increased nitrogen (N) and phosphorus (P) inputs, among which, the response of RSOC would affect SOC accumulation directly, emphasizing the significance of investigating RSOC. Hence, based on a long-term nutrient addition experiment in a Tibetan alpine grassland, this study assessed RSOC using a 45-day soil incubation experiment with 13C-glucose labeling method and explored the underlying mechanisms. The results demonstrated bacterial richness and diversity decreased in the topsoil due to the lower pH caused by the continuous N addition, whereas fungal richness and diversity had no significant change. And RSOC decreased with N addition in the topsoil because of suppressing the physiological process of microbes for N. Our results highlighted the crucial role of C availability (indicated by dissolved organic carbon) and N avail ability (indicated by total nitrogen) in controlling RSOC with long-term nutrient addition in the top- and subsoil, respectively. Overall, this study elucidated the impact of N and P addition on RSOC and offered the regulatory mechanisms of RSOC by considering soil, plant and microbial properties. These findings can serve as a basis for anticipating the changes in SOC dynamics in response to enhanced N and P deposition. |
| WOS关键词 | MICROBIAL COMMUNITIES ; BACTERIAL DIVERSITY ; FUNGAL COMMUNITIES ; TROPICAL FOREST ; CLIMATE-CHANGE ; RESPONSES ; TOPSOIL ; MATTER ; FERTILIZATION ; DECOMPOSITION |
| 语种 | 英语 |
| WOS记录号 | WOS:001179198000001 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/40087]  |
| 专题 | 个人在本单位外知识产出 |
| 通讯作者 | Tian Ma |
| 作者单位 | State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, and College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China |
| 推荐引用方式 GB/T 7714 | Wenjing Gao,Tian Ma,Biwan Shi,et al. Effects of nitrogen and phosphorus addition on the mineralization potential of soil organic carbon and the corresponding regulations in the Tibetan alpine grassland[J]. Applied Soil Ecology,2024,196:1-9. |
| APA | Wenjing Gao.,Tian Ma.,Biwan Shi.,Zhiying Yang.,Yifan Li.,...&Jin-Sheng He.(2024).Effects of nitrogen and phosphorus addition on the mineralization potential of soil organic carbon and the corresponding regulations in the Tibetan alpine grassland.Applied Soil Ecology,196,1-9. |
| MLA | Wenjing Gao,et al."Effects of nitrogen and phosphorus addition on the mineralization potential of soil organic carbon and the corresponding regulations in the Tibetan alpine grassland".Applied Soil Ecology 196(2024):1-9. |
入库方式： OAI收割
来源：烟台海岸带研究所
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