Exploring the Impact of Future Land Use Change on Global Air Quality and Nutrient Deposition

探索未来土地利用变化对全球空气质量和养分沉积的影响

• 批准号: 2223070
• 负责人: Colette Heald
• 金额: $ 64.94万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-01-01 至 2025-12-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2223070&HistoricalAwards=false
• 关键词: Exploring; Impact; Future; Land; Use

The objective of this project is to characterize the impact of anticipated land-use change over the next century on air quality (ozone and fine particulate matter, PM 2.5) and nutrient deposition (nitrogen and phosphorus) from the atmosphere. This effort includes coupling the results of a land-use model with a global chemical transport model to better predict biosphere-atmosphere exchanges that are modulated by land use change. The project will couple output from Community Land Model (CLM2) simulations, driven by the Shared Socioeconomic Pathways (SSP) land use change scenarios, to the global chemical transport model, GEOS-Chem. Four modules will be modified: biogenic VOC emissions, soil NOx emissions, bioaerosol emissions, and dry deposition. The project includes the development and observational evaluation of a phosphorus model and a harmonized land use scheme for GEOS-Chem. There are two overarching goals for this project: (1) Assessing the impact of projected land use change on short-lived atmospheric constituents (O3 and PM); and (2) Assessing the impact of projected land use change on nutrient deposition (phosphorus and nitrogen).This research effort will be led by a graduate student and a postdoctoral fellow. Continuation of the Frontiers in Atmospheric Chemistry Seminar Series (FACSS) will also be supported by this project.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目的目标是描述下个世纪预期的土地利用变化对空气质量（臭氧和细颗粒物，PM 2.5）和大气养分沉积（氮和磷）的影响。这项工作包括将土地利用模型的结果与全球化学品运输模型相结合，以更好地预测受土地利用变化调节的生物圈-大气交换。该项目将把由共享社会经济路径 (SSP) 土地利用变化情景驱动的社区土地模型 (CLM2) 模拟的输出与全球化学品运输模型 GEOS-Chem 结合起来。将修改四个模块：生物挥发性有机化合物排放、土壤氮氧化物排放、生物气溶胶排放和干沉降。该项目包括磷模型的开发和观测评估以及 GEOS-Chem 的统一土地利用方案。该项目有两个总体目标： (1) 评估预计土地利用变化对短期大气成分（O3 和 PM）的影响； (2) 评估预计土地利用变化对养分沉积（磷和氮）的影响。这项研究工作将由一名研究生和一名博士后研究员领导。大气化学前沿研讨会系列 (FACSS) 的延续也将得到该项目的支持。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。