Soil properties and fungal community jointly explain N2O emissions following N and P enrichment in an alpine meadow
文献类型：期刊论文
| 作者 | Lin, Zhenrong; Shi, Lina; Wei, Xiaoting; Han, Bing; Peng, Cuoji; Yao, Zeying; He, Yicheng; Xiao, Qing; Lu, Xinmin; Deng, Yanfang |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2024 |
| 卷号 | 344 |
| 英文摘要 | Nutrient enrichment, such as nitrogen (N) and phosphorus (P), typically affects nitrous oxide (N2O) emissions in terrestrial ecosystems, predominantly via microbial nitrification and denitrification processes in the soil. However, the specific impact of soil property and microbial community alterations under N and P enrichment on grassland N2O emissions remains unclear. To address this, a field experiment was conducted in an alpine meadow of the northeastern Qinghai -Tibetan Plateau. This study aimed to unravel the mechanisms underlying N and P enrichment effects on N2O emissions by monitoring N2O fluxes, along with analyzing associated microbial communities and soil physicochemical properties. We observed that N enrichment individually or in combination with P enrichment, escalated N2O emissions. P enrichment dampened the stimulatory effect of N enrichment on N2O emissions, indicative of an antagonistic effect. Structural equation modeling (SEM) revealed that N enrichment enhanced N2O emissions through alterations in fungal community composition and key soil physicochemical properties such as pH, ammonium nitrogen (NH4+-N), available phosphorus (AP), microbial biomass carbon (MBC), and microbial biomass nitrogen (MBN)). Notably, our findings demonstrated that N2O emissions were significantly more influenced by fungal activities, particularly genera like Fusarium, rather than bacterial processes in response to N enrichment. Overall, the study highlights that N enrichment intensifies the role of fungal attributes and soil properties in driving N2O emissions. In contrast, P enrichment exhibited a nonsignificant effect on N2O emissions, which highlights the critical role of the fungal community in N2O emissions responses to nutrient enrichments in alpine grassland ecosystems. |
| 源URL | [http://210.75.249.4/handle/363003/62108]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Lin, Zhenrong,Shi, Lina,Wei, Xiaoting,et al. Soil properties and fungal community jointly explain N2O emissions following N and P enrichment in an alpine meadow[J]. ENVIRONMENTAL POLLUTION,2024,344. |
| APA | Lin, Zhenrong.,Shi, Lina.,Wei, Xiaoting.,Han, Bing.,Peng, Cuoji.,...&Shao, Xinqing.(2024).Soil properties and fungal community jointly explain N2O emissions following N and P enrichment in an alpine meadow.ENVIRONMENTAL POLLUTION,344. |
| MLA | Lin, Zhenrong,et al."Soil properties and fungal community jointly explain N2O emissions following N and P enrichment in an alpine meadow".ENVIRONMENTAL POLLUTION 344(2024). |
入库方式： OAI收割
来源：西北高原生物研究所
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