Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 0444592 |
| Loss and Retention of Nitrogen in an Artic Landscape: Key Pathways and Process Regulation | |
| Gaius Shaver | |
| 主持机构 | Marine Biological Laboratory |
| 开始日期 | 2005-01-15 |
| 结束日期 | 2008-12-31 |
| 资助经费 | 924000(USD) |
| 项目类别 | Continuing Grant |
| 资助机构 | US-NSF（美国国家科学基金会） |
| 项目所属计划 | ECOSYSTEM STUDIES |
| 语种 | 英语 |
| 国家 | 美国 |
| 英文简介 | The broad aim of this research is to improve understanding of how nitrogen (N) loss and retention processes affect long-term N accumulation and "N limitation" in terrestrial ecosystems. The specific aim is to determine the major pathways of N loss from Alaskan tundra ecosystems, the controls over those losses, and the importance of the losses for N accumulation and for interactions with the carbon (C) cycle. The field research will be based at Toolik Field Station, Alaska, and the research design is built around three core questions: What are the major forms and rates of N loss from different tundra ecosystem types? What are the major environmental and biological controls over these N losses? What are the impacts of N loss on overall N and C budgets of tundra ecosystems? The research design includes both field and laboratory experiments, and also the monitoring of N movement through soils and surface waters of a small watershed, Imnavait Creek. Simulation models will be used to construct N budgets at various timescales and to predict changes in N and C cycling in response to climate change and other disturbances. |
| 来源学科分类 | Biological Sciences |
| URL | https://www.nsf.gov/awardsearch/showAward?AWD_ID=0444592 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/341317 |
| 推荐引用方式 GB/T 7714 | Gaius Shaver.Loss and Retention of Nitrogen in an Artic Landscape: Key Pathways and Process Regulation.2005. |
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