通过海藻养殖去除碳和减缓气候变化:一项知识状况审查
Albert Pessarrodona1, Jennifer Howard2, Emily Pidgeon2
1UWA Oceans Institute and School of Biological Sciences, University of Western Australia, Crawley, Western Australia 6009, Australia; Conservation International, Arlington, VA, USA; International Blue Carbon Institute, Singapore.
The Science of the total environment
|February 3, 2024
概括
为了去除二氧化碳 (CDR),海藻养殖是有希望的,但有限的. 目前的农场短期储存碳,并有排放抵消去除,需要供应链去碳化以减缓气候变化.
科学领域:
- 海洋科学 海洋科学
- 减缓气候变化减缓气候变化减缓
- 碳封存是一种碳封存方式.
背景情况:
- 对海洋二氧化碳去除 (CDR) 解决方案的兴趣日益增长.
- 海藻养殖是大气碳捕获的一种拟议方法.
- 关于海藻养殖实际减缓气候变化潜力的有限的综合评估.
研究的目的:
- 综合关于海藻养殖场二氧化碳去除 (CDR) 能力的证据.
- 审查加强海藻养殖减缓气候变化贡献的干预措施.
- 评估海藻养殖在减缓气候变化的当前和未来作用.
主要方法:
- 对100多篇关于海藻养殖和CDR的出版物的系统审查.
- 碳储存储库的分析 (短期与长期).
- 考虑农场排放的净碳平衡的第一阶段估计.
主要成果:
- 大多数固定碳储存在短期储存库中 (例如产品).
- 长期储存 (例如海洋沉积物) 中的碳封存有限.
- 目前全球海藻养殖面积极小 (0.06%的野生面积).
- 观察到净碳排放,农场运营依赖化石燃料.
- 全球平均余额: -0.11 Tg C yr−1 (净排放者).
结论:
- 海藻养殖目前的CDR能力受到短期储存和运营排放的限制.
- 减碳供应链和将生物质转向长期储存至关重要.
- 扩张需要解决科学,工程和经济方面的挑战.
- 为了有效的气候核算,需要强大的模型来追踪海藻的碳命运.
相关概念视频
Adaptations that Reduce Water Loss
25.6K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.6K
Bioremediation
18.4K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.4K
Responses to Salt Stress
13.1K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.1K
The Calvin Benson Cycle
4.5K
Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...
4.5K


