CAREER: Retention and Mobility of Beryllium in Soils and Sedimentary Environments

职业：铍在土壤和沉积环境中的保留和移动性

• 批准号: 1554134
• 负责人: Jane Willenbring
• 金额: $ 51.07万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-02-15 至 2016-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1554134&HistoricalAwards=false
• 关键词: CAREER; Retention; Mobility; Beryllium; Soils

Maintenance of soil is critically important for sustaining the world's growing population. This project aims to enhance scientific understanding of soil sustainability by developing a tool for measuring modern landscape change and reconstructing past Earth conditions. The project will help build the foundation for the career of a promising female earth scientist. She will contribute towards the development of a diverse workforce capable of tackling society's environmental challenges. Her efforts on this project will highlight the importance of soil as a resource and broaden citizen awareness of pollutants in their neighborhoods through K-12 education and a citizen-science activity called "Soil Kitchen", which will take place in one of the "Promise Zones" identified by the White House initiative as an area of economic need and community revitalization.This interdisciplinary project aims to improve our understanding of the limitations and opportunity of using beryllium isotopes as a tool for tracking sediment movement on landscapes. Beryllium isotopes sorbed to sediments are now being measured extensively to understand movement of soil particles and natural feedbacks. However, we lack understanding of the mechanisms of adsorption and desorption processes that are critical for the interpretation of new data. This project will use a combination of laboratory experiments and field-scale measurements to understand beryllium mobility and what it can tell us about the Earth's critical zone today and in the past. The project will engage a team of undergraduate students, graduate students, and a postdoctoral scholar in all aspects of the work. Data will be archived in NSF-supported databases.

维持土壤对于维持世界不断增长的人口至关重要。该项目旨在通过开发一种用于测量现代景观变化并重建过去地球条件的工具来增强对土壤可持续性的科学理解。该项目将有助于为一位有前途的女性地球科学家的职业奠定基础。她将为发展能够应对社会环境挑战的各种劳动力的发展做出贡献。她在该项目上的努力将强调土壤作为资源的重要性，并通过K-12教育和一项称为“土壤厨房”的公民科学活动在其社区中对污染物的意识扩大，该活动将在白宫倡议确定的一个“承诺区”中进行，这是经济需求和社区恢复的领域。用于跟踪景观上的沉积物运动。现在，正在广泛测量被吸附到沉积物到沉积物的铍同位素，以了解土壤颗粒和自然反馈的运动。但是，我们缺乏对对新数据解释至关重要的吸附和解吸过程机制的了解。该项目将结合实验室实验和现场尺度测量，以了解铍的流动性及其可以告诉我们有关当今和过去的地球临界区的内容。该项目将在各个方面与本科生，研究生和博士后学者组成。数据将在NSF支持的数据库中存档。