MRI-R2: Acquisition of a Shared Isotope Ratio Mass Spectrometer for Ecological, Geological & Hydrological Research, Education & Training in the Central Appalachians

MRI-R2：购买用于生态、地质的共享同位素比质谱仪

• 批准号: 0958018
• 负责人: David Nelson
• 金额: $ 43.43万
• 依托单位: University of Maryland Center for Environmental Sciences
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-12-15 至 2011-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0958018&HistoricalAwards=false
• 关键词: MRI; R2; Acquisition; Shared; Isotope

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). Funds supplied by the NSF MRI-R2 program have helped to support the establishment of a facility for state of- the-art stable isotope measurements at the University of Maryland Center for Environmental Science Appalachian Laboratory. Acquisition of equipment for this Central Appalachians Stable Isotope Facility (CASIF) provides critical support to unique ongoing and planned research projects in multiple disciplines, including paleoecology and paleoclimatology, landscape ecology and remote sensing, biogeochemistry, hydrology & plant ecology. The funds were used to purchase a ThermoFisher Delta V+ isotope ratio mass spectrometer (IRMS), a spooling wire microcombustion device, an elemental analyzer, a high temperature conversion/elemental analyzer pyrolysis unit and a GasBench II. A critical mass of 13 new and existing faculty, including 7 early-career assistant professors who specialize in the application of isotopic and/or biogeochemical tracers are using the equipment to address pressing questions concerning the impacts of environmental change, including: long-term hydrologic variability in the flow of the Potomac River; the response of the nitrogen cycle to natural and anthropogenic perturbations; the impacts of invasive species and human activities on biogeochemical processes in soils and streams; and many other timely research topics. Together this group actively trains roughly 25 graduate students and postdoctoral researchers, and approximately 30 undergraduate researchers. Students and postdoctoral researchers, including women, minorities & first-generation students, are provided with opportunities to utilize state-of-the-art techniques and instruments at the CASIF. As a regional shared-use facility, the CASIF will promote synergistic research and education activities around common environmental-change research themes, thus enhancing intra- and inter-institution collaborations, and also helping the general public appreciate the utility of isotopes for understanding the impacts of environmental change. Results from the studies enabled by the new instrumentation will be disseminated through peer-reviewed scientific journals, and by student and faculty presentations at regional and national meetings.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。NSF MRI-R2计划提供的资金帮助支持在马里兰州大学环境科学中心阿巴拉契亚实验室建立最先进的稳定同位素测量设施。为阿巴拉契亚山脉中部稳定同位素设施（CASIF）购买设备为多个学科正在进行和计划进行的独特研究项目提供关键支持，包括古生态学和古气候学，景观生态学和遥感，地球化学，水文植物生态学。 这些资金用于购买一台ThermoFisher Delta V+同位素比质谱仪、一台绕线微燃烧装置、一台元素分析仪、一台高温转化/元素分析仪热解装置和一台GasBench II。 13名新的和现有的教师，包括7名专门从事同位素和/或地球化学示踪剂应用的早期职业助理教授，正在使用这些设备解决有关环境变化影响的紧迫问题，包括：波托马克河流量的长期水文变化;氮循环对自然和人为扰动的反应;入侵物种和人类活动对土壤和河流生态地球化学过程的影响;以及许多其他及时的研究课题。 这个小组一起积极培训大约25名研究生和博士后研究人员，以及大约30名本科生研究人员。 学生和博士后研究人员，包括妇女、少数民族第一代学生，有机会利用CASIF最先进的技术和仪器。 作为一个区域共用设施，CASIF将围绕共同的环境变化研究主题促进协同研究和教育活动，从而加强机构内和机构间的合作，并帮助公众了解同位素在了解环境变化影响方面的效用。 由新仪器支持的研究结果将通过同行评审的科学期刊以及学生和教师在区域和国家会议上的演讲进行传播。