Effect of Nitrogen and Phosphorus on Soil Enzyme Activities and Organic Carbon Stability in Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Zhai, Jiaying; Zhou, Huakun ; Wu, Yang; Wang, Guoliang; Xue, Sha
|
| 刊名 | AGRONOMY-BASEL
 |
| 出版日期 | 2024 |
| 卷号 | 14期号:7 |
| 英文摘要 | Alpine grassland ecosystems are the most important ecosystem type, exhibiting a high sensitivity to anthropogenic nitrogen (N) and phosphorus (P) inputs into terrestrial ecosystems and significantly affecting the carbon (C) cycle within these ecosystems. However, the effects of N and P additions on soil C stability and the processes of organic C transformation remain unclear. This study measured the soil enzyme activities and oxidizable C fractions over a 9-year period following N and P additions to an alpine meadow in the Qinghai-Tibet Plateau. It included four treatments: control (CK), N addition, P addition, and combined N and P addition (NP), utilizing statistical methods such as analysis of variance (ANOVA), correlation analysis, and redundancy analysis. The findings indicated that NP addition significantly increased the non-labile soil oxidizable C fraction in the topsoil layer. Redundancy and correlation analyses revealed strong associations between the vegetation characteristics, C-cycling enzyme activities, soil-oxidized C fractions, and SOC stability index. These results underscore the role of NP addition in enhancing SOC accumulation and stability in grassland ecosystems, with the soil vegetation properties and C source enzyme activities serving as key regulators of the SOC stability. This study offers valuable insights into predicting the SOC dynamics amid rising N and P availability, thereby elucidating the effect of nutrient addition on soil C-cycling mechanisms. |
| 源URL | [http://210.75.249.4/handle/363003/62000]  |
| 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 | Zhai, Jiaying,Zhou, Huakun,Wu, Yang,et al. Effect of Nitrogen and Phosphorus on Soil Enzyme Activities and Organic Carbon Stability in Qinghai-Tibet Plateau[J]. AGRONOMY-BASEL,2024,14(7). |
| APA | Zhai, Jiaying,Zhou, Huakun,Wu, Yang,Wang, Guoliang,&Xue, Sha.(2024).Effect of Nitrogen and Phosphorus on Soil Enzyme Activities and Organic Carbon Stability in Qinghai-Tibet Plateau.AGRONOMY-BASEL,14(7). |
| MLA | Zhai, Jiaying,et al."Effect of Nitrogen and Phosphorus on Soil Enzyme Activities and Organic Carbon Stability in Qinghai-Tibet Plateau".AGRONOMY-BASEL 14.7(2024). |
入库方式： OAI收割
来源：西北高原生物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。