Assessing Impacts of Environmental Perturbations on Urban Biogenic Carbon Exchange in the Chicago Region
Assessing Impacts of Environmental Perturbations on Urban Biogenic Carbon Exchange in the Chicago Region
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DOI：
10.1029/2023ms003867
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发表时间：
2023-10
影响因子：
6.8
通讯作者：
Peiyuan Li;Ashish Sharma;Zhi-Hua Wang;D. Wuebbles
中科院分区：
文献类型：
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作者：
Peiyuan Li;Ashish Sharma;Zhi-Hua Wang;D. Wuebbles
二氧化碳(CO2)的量化对于评估城市层面的碳排放和城市的可持续发展至关重要。虽然城市植被具有提供热和碳缓解等环境效益的潜力，但来自生物部门的二氧化碳交换及其环境扰动的影响往往被忽视。在复杂的城市地形中模拟植物功能也是一项具有挑战性的工作。这项研究提出了一种基于过程的模拟方法，利用天气研究和预报-城市生物碳交换模型来评估芝加哥大都会地区植被区的生物碳通量。我们研究了热波和灌溉条件下CMA中CO2汇功率的变化。结果表明，植被在城市碳排放总量中占有重要地位，园林绿化管理具有显着的碳减排潜力。此外，基于本研究确定的生物碳平衡中的竞争机制，我们开发了一个新的环境效益得分度量框架，以确定CMA中与基于自然的解决方案(NBS)相关的脆弱性和缓解措施。通过使用这项研究中提出的广义可移植框架和我们的科学-政策融合分析，全球城市可以最大限度地发挥国家统计局的有效性，促进碳中和。
Carbon dioxide (CO2) quantification is critical for assessing city‐level carbon emissions and sustainable urban development. While urban vegetation has the potential to provide environmental benefits, such as heat and carbon mitigation, the CO2 exchange from biogenic sectors and its impact from the environmental perturbations are often overlooked. It is also challenging to simulate the plant functions in the complex urban terrain. This study presents a processed‐based modeling approach to assess the biogenic carbon fluxes from the vegetated areas over the Chicago Metropolitan Area (CMA) using the Weather Research and Forecast—Urban Biogenic Carbon exchange model. We investigate the change of CO2 sink power in CMA under heatwaves and irrigation. The results indicate that the vegetation plays a significant role in the city's carbon portfolio and the landscaping management has the potential to reduce carbon emissions significantly. Furthermore, based on the competing mechanisms in the biogenic carbon balance identified in this study, we develop a novel Environmental Benefit Score metrics framework to identify the vulnerability and mitigation measures associated with nature‐based solutions (NbS) within CMA. By using the generalized portable framework and our science‐policy confluence analysis presented in this study, global cities can maximize the effectiveness of NbS and accelerate carbon neutrality.