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.

该项目的目的是表征下个世纪预期的土地利用变化对空气质量（臭氧和细颗粒物质，PM 2.5）的影响，以及从大气中的营养沉积（氮和磷）。这项工作包括将土地利用模型的结果与全球化学转运模型耦合，以更好地预测由土地利用变化调节的生物圈 - 大气交换。该项目将从共享的社会经济途径（SSP）土地利用变化方案的驱动到全球化学运输模型Geos-Chem的驱动到社区土地模型（CLM2）模拟中的输出。将修改四个模块：生物VOC排放，土壤NOX排放，生物溶质排放和干沉积。该项目包括磷模型的开发和观察评估以及用于GEOS-CHEM的统一土地使用方案。该项目有两个总体目标：（1）评估预计土地利用变化对短暂的大气成分（O3和PM）的影响； （2）评估预计土地使用变化对养分沉积的影响（磷和氮）。这项研究工作将由研究生和博士后研究员领导。大气化学研讨会系列（FACSS）的前沿也将得到该项目的支持。该奖项反映了NSF的法定任务，并且使用基金会的知识分子优点和更广泛的审查标准，被认为值得通过评估来获得支持。