Collaborative Research: Intereactions Among Global Change Stressors in Northern Fens: Atmospheric CO2, Temperature, and Nitrogen Deposition

合作研究：北部沼泽全球变化压力源之间的相互作用：大气二氧化碳、温度和氮沉降

• 批准号: 0235333
• 负责人: Scott Bridgham
• 金额: $ 58.93万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-06-01 至 2004-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0235333&HistoricalAwards=false
• 关键词: Collaborative; Research; Intereactions; Among; Global

This project will investigate how increased atmospheric CO2, warmer climatic conditions, and changing soil moisture will influence ecosystem processes, nutrient cycling and the carbon balance (net uptake or loss of CO2) in northern peatlands at a research site in northern Minnesota. This is a collaborative project between investigators at the University of Minnesota-Duluth (PI: J. Pastor) and the University of Oregon (PI: S. Bridgham). This team will work closely with Dr. Patrick Megonigal (Smithsonian Environment Research Center, Edgewater MD) who has requested support from the US DOE Biological and Environmental Research Program to construct and operate a FACE (Free-Air CO2 Enrichment) ring at the research site. This NSF-DOE will investigate processes that control carbon storage and turnover in peatlands under current conditions and under a projected doubling of atmospheric CO2 and warming of north temperate and boreal peatlands. The results will be relevant to the issue of the long-term sustainability of peatlands as carbon sinks. Additionally, this research will provide opportunities for undergraduate researchers, graduate students and post doctoral to participate in interdisciplinary global change research.

该项目将在明尼苏达州北部的一个研究地点调查大气中二氧化碳的增加、气候条件的变暖和土壤湿度的变化如何影响生态系统过程、养分循环和碳平衡（二氧化碳的净吸收或损失）。这是明尼苏达大学德卢斯分校（PI: J. Pastor）和俄勒冈大学（PI: S. Bridgham）的研究人员之间的合作项目。该团队将与Patrick Megonigal博士（史密森尼环境研究中心，Edgewater MD）密切合作，他已经请求美国能源部生物和环境研究计划的支持，在研究地点建造和运行一个FACE（自由空气CO2富集）环。美国国家科学基金会-能源部将研究控制泥炭地碳储存和转换的过程，在当前条件下，在预计大气中二氧化碳翻倍和北温带和北方泥炭地变暖的情况下。研究结果将与泥炭地作为碳汇的长期可持续性问题有关。此外，本研究将为本科生、研究生和博士后提供参与跨学科全球变化研究的机会。