Contrasting response of nitrification capacity in three agricultural soils to N addition during short-term incubation
文献类型：期刊论文
| 作者 | Shen, Ju-Pei ; Zhang, Li-Mei ; He, Ji-Zheng |
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
 |
| 出版日期 | 2014 |
| 卷号 | 14期号:11页码:1861-1868 |
| 关键词 | Ammonia oxidizing bacteria Ammonia oxidizing archaea Ammonium fertilizer Potential nitrification rate Soil type |
| ISSN号 | 1439-0108 |
| 中文摘要 | Human disturbance is a major culprit driving imbalances in the biological transformation of nitrogen from the nonreactive to the reactive pool and is therefore one of the greatest concerns for nitrogen (N) cycling. The objective of this study was to compare potential nitrification rates and the abundance of ammonia oxidizers responsible for nitrification, with the amendment of external N in different agricultural soils. Three typical Chinese agricultural soils, QiYang (QY) acid soil, ShenYang (SY) neutral soil, and FengQiu (FQ) alkaline soil, were amended with 0, 20, 150, and 300 mu g NH4 (+)-N g(-1) soil and incubated for 40 days. The abundance of ammonia oxidizing bacteria (AOB) and archaea (AOA) at the end of incubation in the soil microcosms was determined using the real-time PCR. There was a significant decrease in ammonium concentration in the QY soil from the highest to the lowest N-loading treatments, while no significant difference in ammonium concentrations was detected among the different N-loading treatments for the SY and FQ soils. A significantly higher potential nitrification rate (PNR) was observed in the FQ soil while lowest PNR was found in the QY soil. Quantitative PCR analysis of AOB amoA genes demonstrated that AOB abundance was significantly higher in the high N-loading treatments than in the control for the QY soil only, while no significant difference among treatments in the SY and FQ soils. A significant positive correlation between PNR and AOB amoA abundance, however, was found for the SY and FQ soils, but not for the QY soil. Little difference in AOA amoA abundance between different N-loading treatments was observed for all the soils. This study suggested that ammonia oxidation capacity in the FQ and SY soils was higher than those in the QY soil with the addition of ammonium fertilizer for a short-term. These findings indicated that understanding the differential responses of biological nitrification to varying input levels of ammonium fertilizer is important for maximizing N use efficiency and thereby improving agricultural fertilization management. |
| WOS记录号 | WOS:000343927600009 |
| 公开日期 | 2015-03-23 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9128]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 生态环境研究中心_土壤环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Shen, Ju-Pei,Zhang, Li-Mei,He, Ji-Zheng. Contrasting response of nitrification capacity in three agricultural soils to N addition during short-term incubation[J]. JOURNAL OF SOILS AND SEDIMENTS,2014,14(11):1861-1868. |
| APA | Shen, Ju-Pei,Zhang, Li-Mei,&He, Ji-Zheng.(2014).Contrasting response of nitrification capacity in three agricultural soils to N addition during short-term incubation.JOURNAL OF SOILS AND SEDIMENTS,14(11),1861-1868. |
| MLA | Shen, Ju-Pei,et al."Contrasting response of nitrification capacity in three agricultural soils to N addition during short-term incubation".JOURNAL OF SOILS AND SEDIMENTS 14.11(2014):1861-1868. |
入库方式： OAI收割
来源：生态环境研究中心
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