Comparative Ecosystem Analysis Using Inverse Parameter Retrieval

使用逆参数检索的比较生态系统分析

• 批准号: 0743251
• 负责人: Russell Monson
• 金额: $ 55.9万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-03-15 至 2013-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0743251&HistoricalAwards=false
• 关键词: Comparative; Ecosystem; Analysis; Using; Inverse

There are over 100 monitoring sites in forests across the globe that continuously measure the rate and magnitude of CO2 exchange between the forest and atmosphere, and some of these sites are now approaching, or have exceeded, ten years of measurements. Computer models of ecosystem processes, focusing on those involved with photosynthesis and respiration, will be used to evaluate the data from 20 of these forest monitoring sites in order to comparatively evaluate which forests have the highest potential to affect the atmospheric CO2 concentration, and why.An understanding of the processes that result in the accumulation of atmospheric CO2 and thus, impacts to future climate warming, require that we understand how forest ecosystems across the globe exchange CO2 with the atmosphere, and ultimately sequester some of the CO2 in the trees and soils of the forest. The research will facilitate the development of new computer modeling approaches to be applied to CO2 flux monitoring sites including those in an emerging national network of environmental monitoring sites known as the National Ecological Observatory Network (NEON).

全球有100多个森林监测点不断测量森林和大气之间二氧化碳交换的速度和幅度，其中一些监测点现在接近或已经超过了十年的测量值。生态系统过程的计算机模型，重点是那些与光合作用和呼吸作用有关的，将被用来评估来自20个森林监测点的数据，以便比较评估哪些森林最有可能影响大气中的二氧化碳浓度，以及为什么。要理解导致大气二氧化碳积累的过程，从而对未来气候变暖的影响，我们需要了解全球森林生态系统如何与大气交换二氧化碳，并最终隔离森林树木和土壤中的部分二氧化碳。这项研究将促进开发新的计算机模拟方法，应用于二氧化碳通量监测点，包括国家生态观测站(NEON)这一新兴的国家环境监测站网络中的监测点。