Nitrogen Significantly Affected N Cycling Functional Gene Abundances Compared with Phosphorus and Drought in an Alpine Meadow
文献类型：期刊论文
| 作者 | Li, Haiyan; Zhang, Jiaqi2; Tian, Dashuan3; Liu, Yinghui; Dong, Jingyi |
| 刊名 | AGRONOMY-BASEL
 |
| 出版日期 | 2023-04-01 |
| 卷号 | 13期号:4页码:1041 |
| 关键词 | differential response drought interaction effect N cycling functional gene nitrogen addition phosphorus addition |
| DOI | 10.3390/agronomy13041041 |
| 文献子类 | Article |
| 英文摘要 | Human activities and global climate change have greatly increased nitrogen (N) and phosphorus (P) inputs and altered precipitation patterns in alpine meadows. Functional genes are important indicators of microorganisms that drive the nitrogen cycling process; however, the functional gene responses of soil nitrogen cycling to soil N and P availability and drought remain unclear. Separate or combined treatments of nitrogen and phosphorus fertilization and drought were conducted on the Zoige Wetland in the Qinghai-Tibet Plateau, and the abundances of nitrification functional genes AOA amoA and AOB amoA and denitrification functional genes nirS, nirK, and nosZ were measured to explore the response of functional genes to these treatments. Seven treatments, including control (CK), N addition (N), P addition (P), 50% reduction in precipitation (D), N and P addition (NP), N addition with drought (ND), and NP addition with drought (NPD), were investigated. The results indicated that N application significantly increased AOB amoA abundance, while P application and drought had no significant effects on the abundance of functional genes. The combined treatment of N and P addition and drought increased AOB amoA abundance but did not significantly affect AOA amoA abundance, suggesting that AOB amoA was more responsive to soil N and P availability and moisture change than AOA amoA. However, the abundance of denitrification functional genes was not affected by these treatments. Denitrification functional genes were less sensitive to soil N and P availability and moisture change than nitrification functional genes. The integrated effects of N addition, P addition, and drought did not affect the abundance of the above N cycling functional genes. These results indicate that AOB amoA may play a more critical role in the process of ammonia oxidation than AOA amoA in alpine meadows, and the denitrification genes (nirK, nirS, and nosZ) were better than ammoxidation genes (AOA and AOB) at adapting to the soil environmental changes caused by increasing N and P deposition and drought in alpine meadows. |
| WOS关键词 | AMMONIA-OXIDIZING BACTERIA ; COMMUNITY STRUCTURE ; N2O EMISSIONS ; SOIL ; FERTILIZATION ; ARCHAEA ; DENITRIFICATION ; NITRIFICATION ; OXIDATION ; IMPACTS |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS记录号 | WOS:000978117600001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200842]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100020, Peoples R China 2.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China 3.Tsinghua Univ, Inst Environm & Ecol, Tsinghua Shenzhen Int Grad Sch, Future Ecosyst Lab, Shenzhen 518071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Haiyan,Zhang, Jiaqi,Tian, Dashuan,et al. Nitrogen Significantly Affected N Cycling Functional Gene Abundances Compared with Phosphorus and Drought in an Alpine Meadow[J]. AGRONOMY-BASEL,2023,13(4):1041. |
| APA | Li, Haiyan,Zhang, Jiaqi,Tian, Dashuan,Liu, Yinghui,&Dong, Jingyi.(2023).Nitrogen Significantly Affected N Cycling Functional Gene Abundances Compared with Phosphorus and Drought in an Alpine Meadow.AGRONOMY-BASEL,13(4),1041. |
| MLA | Li, Haiyan,et al."Nitrogen Significantly Affected N Cycling Functional Gene Abundances Compared with Phosphorus and Drought in an Alpine Meadow".AGRONOMY-BASEL 13.4(2023):1041. |
入库方式： OAI收割
来源：地理科学与资源研究所
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