Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 31500365 |
| 荒漠草原土壤氨氧化微生物的丰度和群落组成对模拟增温和氮沉降的响应机制 | |
| 贾美清 | |
| 主持机构 | 天津师范大学 |
| 开始日期 | 2016 |
| 结束日期 | 2018 |
| 资助经费 | 200000(CNY) |
| 项目类别 | 青年科学基金项目 |
| 资助机构 | CN-NSFC（国家自然科学基金） |
| 语种 | 中文 |
| 国家 | 中国 |
| 英文简介 | The impact researches of climate warming and nitrogen deposition on grassland ecosystem and its feedback are focus in recent years. However, many researches focused on impact on community composition of vegetation, soil and others caused by the change of single climate factor. The effect research about grassland caused by the interaction of climate warming and nitrogen deposition were very small, and there wasn’t research about response mechanism of the abundance and community composition of ammonia-oxidizing Archaea and Bacteria on simulated greenhouse and nitrogen deposition. We will carry out this research in Inner Mongolia desert grassland by the way of long-term simulating greenhouse and increasing nitrogen in field and simulation experiment in lab, using Real-time Quantitative PCR Detecting System，Terminal Restriction Fragment Length Polymorphism and cloning technique. Then we will research the abundance and community composition of ammonia-oxidizing Archaea and Bacteria of different soil depth in different plants’ growth period and conduct bioinformatics analysis. And by analyzing with the control T-RFLP spectra, we will obtain sensitive strains to the change of temperature and nitrogen's quantity. Through physiological and biochemical analysis on sensitive strains combined with physical and chemical properties of soil, we investigate on the response mechanism of sensitive strains to climate warming, nitrogen deposition and the interaction of them in order to provide scientific basis for thorough evaluation ecological effect caused by climate warming and nitrogen deposition and setting corresponding policies. |
| 中文关键词 | 荒漠草原 ; 短花针茅 ; 气候变暖 ; 氮沉降 ; 氨氧化微生物 |
| 来源机构 | 天津师范大学 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/346967 |
| 推荐引用方式 GB/T 7714 | 贾美清.荒漠草原土壤氨氧化微生物的丰度和群落组成对模拟增温和氮沉降的响应机制.2016. |
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