Quantification of biomass availability for wood harvesting and storage in the continental United States with a carbon cycle model

IF 3.9 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Carbon Balance and Management Pub Date : 2024-09-28 DOI:10.1186/s13021-024-00270-4

Henry Hausmann, Qixiang Cai, Ning Zeng

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引用次数: 0

Abstract

Background

Wood Harvesting and Storage (WHS) is a form of Biomass Carbon Removal and Storage (BiCRS) that utilizes a combined natural and engineered process to harvest woody biomass and put it into long term storage, most frequently in the form of subterranean burial. This paper aims to quantify the availability of woody biomass for the purposes of WHS in the continental United States using a carbon cycle modeling approach. Using a regional version of the VEGAS terrestrial carbon cycle model at 10 km resolution, this paper calculates the annual woody net primary production in the continental United States. It then applies a series of constraints to exclude woody biomass that is unavailable for WHS. These constraints include fine woody biomass, current land use, current wood utilization, land conservation, and topographical limitations. These results were then split into state by state and regional totals.

Results

In total, the model projects the continental United States could produce 1,274 MtCO₂e (CO₂ equivalent) worth of coarse woody biomass annually in a scenario with no anthropogenic land use or constraints. In a scenario with anthropogenic land use and constraints on wood availability, the model projects that 415 MtCO₂e of coarse woody biomass is available for WHS annually. This is enough to offset 8.5% of the United States’ 2020 greenhouse gas emissions. Of this potential, 20 MtCO₂e is from the Pacific region, 77 MtCO₂e is from the Western Interior, 91 MtCO₂e is from the Northeast region, and 228 MtCO₂e is from the Southeast region.

Conclusion

There is enough coarse woody biomass available in the continental United States to make WHS a viable form of carbon removal and storage in the country. There is coarse woody biomass available across the continental United States. All four primary regions analyzed have enough coarse woody biomass available to justify investment in WHS projects.

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利用碳循环模型量化美国大陆用于木材采伐和储存的生物质可用性

背景木材采伐与封存（WHS）是生物质碳清除与封存（BiCRS）的一种形式，它利用自然与工程相结合的方法采伐木质生物质并将其长期封存，最常见的形式是地下埋藏。本文旨在利用碳循环建模方法，对美国大陆用于 WHS 的木质生物质可用性进行量化。本文使用分辨率为 10 千米的 VEGAS 陆地碳循环模型区域版，计算了美国大陆每年的木本净初级生产力。然后，它应用了一系列约束条件，以排除无法用于 WHS 的木质生物量。这些限制因素包括细木质生物量、当前土地利用、当前木材利用、土地保护和地形限制。结果该模型预测，在没有人为土地使用或限制的情况下，美国大陆每年可生产价值 12.74 亿吨 CO2（二氧化碳当量）的粗木质生物质。在人为使用土地并限制木材供应的情况下，该模型预测每年可用于 WHS 的粗木质生物量为 4.15 亿吨 CO2e。这足以抵消美国 2020 年 8.5% 的温室气体排放量。在这一潜力中，太平洋地区为 2,000 万吨 CO2e，西部内陆地区为 7,700 万吨 CO2e，东北部地区为 9,100 万吨 CO2e，东南部地区为 2.28 亿吨 CO2e。美国大陆各地都有粗木质生物量。所分析的四个主要地区都有足够的粗木质生物量，足以证明对 WHS 项目的投资是合理的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Carbon Balance and Management Environmental Science-Management, Monitoring, Policy and Law

CiteScore

7.60

自引率

0.00%

发文量

审稿时长

14 weeks

期刊介绍： Carbon Balance and Management is an open access, peer-reviewed online journal that encompasses all aspects of research aimed at developing a comprehensive policy relevant to the understanding of the global carbon cycle. The global carbon cycle involves important couplings between climate, atmospheric CO2 and the terrestrial and oceanic biospheres. The current transformation of the carbon cycle due to changes in climate and atmospheric composition is widely recognized as potentially dangerous for the biosphere and for the well-being of humankind, and therefore monitoring, understanding and predicting the evolution of the carbon cycle in the context of the whole biosphere (both terrestrial and marine) is a challenge to the scientific community. This demands interdisciplinary research and new approaches for studying geographical and temporal distributions of carbon pools and fluxes, control and feedback mechanisms of the carbon-climate system, points of intervention and windows of opportunity for managing the carbon-climate-human system. Carbon Balance and Management is a medium for researchers in the field to convey the results of their research across disciplinary boundaries. Through this dissemination of research, the journal aims to support the work of the Intergovernmental Panel for Climate Change (IPCC) and to provide governmental and non-governmental organizations with instantaneous access to continually emerging knowledge, including paradigm shifts and consensual views.