海洋养殖结构调整,以实现中国的碳中和,减轻气候变化
Chi Song1, Yonglong Xiong1, Peng Jin2
1State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China.
The Science of the total environment
|June 23, 2023
概括
中国的海洋培养贝类释放的二氧化碳明显超过了大藻类的排放量,阻碍了碳中和目标. 扩大宏观藻类的种植,特别是高隔离物种,对于缓解气候变化至关重要.
科学领域:
- 海洋生物学 海洋生物学
- 气候科学是气候科学.
- 生物地质化学生物地质化学
背景情况:
- 中国是全球贝类和藻生产的领导者.
- 海洋养殖在碳循环中发挥着重要作用.
- 了解水产养殖中的二氧化碳动态对于减缓气候变化至关重要.
研究的目的:
- 综合评估中国海洋培养的贝类和大藻类的二氧化碳释放和封存情况.
- 评估贝类和巨藻养殖对碳排放的净影响.
- 为实现水产养殖中碳中和提供见解.
主要方法:
- 使用二氧化碳释放系数 (Φ) 来量化贝类化产生的二氧化碳释放量.
- 从贝类呼吸中测量的二氧化碳释放.
- 评估贝类和大藻类在沉积物和贝中的有机碳封存.
- 对两种水产养殖类型的净二氧化碳平衡计算.
主要成果:
- 海洋培养的贝类释放了净1.136 ± 0.011 Tg C yr-1,主要是通过化和呼吸.
- 大藻隔离了0.280 ± 0.010 Tg C yr-1,远远少于贝类的释放量.
- 像Gracilariopsis lemaneiformis和Undaria pinnatifida这样的特定大藻类显示出高碳捕获率.
结论:
- 贝类海洋养殖目前有助于净二氧化碳排放,挑战碳中和.
- 宏观藻类的种植,特别是高效的种类,为碳捕获提供了潜力.
- 为实现中国的碳中和目标,建议战略扩大宏观藻类养殖和对贝类养殖的潜在限制.
更多相关视频
05:58Author Spotlight: Advancing Coral Culture - Creating a Semi-Quantitatively Controlled Microenvironment System to Counter Current Limitations
Published on: July 21, 2023
2.0K
04:29Author Spotlight: Developing Synthetic Microbial Communities for Generating Second-Generation Biofertilizers
Published on: May 24, 2024
870
相关概念视频
00:46Bioremediation
19.1K
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.
19.1K
01:28Carbon-dioxide Fixation
42
Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
42
01:14The Carbon Cycle
38.6K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
38.6K