Concurrent nitrogen and phosphorus enrichment increases ecosystem carbon use efficiency in an alpine grassland
文献类型：期刊论文
| 作者 | Li, Wenyu2,3; He, Yunlong2; Shen, Ruonan2,3; Hou, Ge2; Zheng, Zhoutao2; Zhao, Bo2; Zheng, Jiahe2,3; Jiang, Qianxin2,3; Zhang, Xianzhou2,3; Zhang, Yangjian1,2,3 |
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 375页码:109182 |
| 关键词 | Carbon flux Climate Grassland Nutrient enrichment |
| DOI | 10.1016/j.agee.2024.109182 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Ecosystem carbon use efficiency (CUEe) is a crucial indicator for assessing the capacity of ecosystems to sequester atmospheric carbon (C). However, it remains unclear how nitrogen (N) and phosphorus (P) influence CUEe and how climatic factors regulate CUEe. Here, a four-year manipulative experiment was conducted in a semi-arid alpine grassland ecosystem to explore the response of CUEe to N and P additions with fluctuating interannual precipitation. Our study revealed that the N and P combination synergistically improved CUEe; the single additions of N or P did not affect CUEe. The variation in CUEe was correlated to a larger in net ecosystem CO2 exchange (NEE) relative to gross ecosystem productivity (GEP). Similarly, the combination of N and P significantly increased aboveground biomass, whereas addition alone did not. Under the combined addition of N and P, a significant decrease in species diversity led to decreases in CUEe. Moreover, precipitation indirectly increased CUEe by increasing NEE. Our findings underscore the co-limitation of N and P resources for CUEe in the alpine grassland ecosystem and identify community structure and climate factors as key drivers of CUEe variations following nutrient enrichment. |
| WOS关键词 | SOIL RESPIRATION ; INCREASED PRECIPITATION ; TERRESTRIAL ECOSYSTEMS ; GLOBAL ANALYSIS ; LIMITATION ; DIVERSITY ; PRODUCTIVITY ; RESPONSES ; EXCHANGE ; BIOMASS |
| WOS研究方向 | Agriculture ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:001284241900001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206872]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Zhu, Juntao |
| 作者单位 | 1.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modelling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Wenyu,He, Yunlong,Shen, Ruonan,et al. Concurrent nitrogen and phosphorus enrichment increases ecosystem carbon use efficiency in an alpine grassland[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2024,375:109182. |
| APA | Li, Wenyu.,He, Yunlong.,Shen, Ruonan.,Hou, Ge.,Zheng, Zhoutao.,...&Zhu, Juntao.(2024).Concurrent nitrogen and phosphorus enrichment increases ecosystem carbon use efficiency in an alpine grassland.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,375,109182. |
| MLA | Li, Wenyu,et al."Concurrent nitrogen and phosphorus enrichment increases ecosystem carbon use efficiency in an alpine grassland".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 375(2024):109182. |
入库方式： OAI收割
来源：地理科学与资源研究所
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