海洋牧场增强生态系统稳定性和生物固碳潜力：Ecopath与Ecosim模型对中国国家海洋牧场30年生态路径的模拟

IF 2.8 2区生物学 Q1 MARINE & FRESHWATER BIOLOGY

Frontiers in Marine Science Pub Date : 2025-04-29 DOI:10.3389/fmars.2025.1583896

Jiale Yan, Yan Chen, Yingkun Cao, Jiamin Sun, Bin Wen, Xiaowei Gao, Gang Wang, Lixin Gong, Huixin Liu, Qian Li, Xiujin Liu, Jiabo Zhang, Zepeng Li, Futang Ma, Haien Zhang, Weidong Li, Zhe Pan

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引用次数: 0

摘要

海洋牧场是一项有效的海洋生态系统保护措施，不仅有助于保护海洋资源，而且具有重要的碳汇功能。方法以渤海海之都海洋牧场为研究对象，构建了20个官能团，采用Ecopath生态系统模型（EwE）和稳定同位素（δ13C和δ15N）对系统进行建模，评价了系统中不同官能团的生物结构、能量传递效率和生态承载力（ECC）。计算贝类达到ECC时的固碳潜力以及海洋牧场建设对系统稳定性和成熟度的影响。结果与讨论海洋牧场系统特征参数研究结果表明：在海之都海洋牧场生态系统中，生物量最高的功能群是沉积物碎屑类（37.75 t/km2），其次是浮游植物（21.40 t/km2），最低的是其他中上层鱼类（0.26 t/km2）；营养等级最高的是indicus Platycephalus(3.70)，其次是sebases schlegelii和头足类（3.43）；能量传递效率主要集中在营养级1和营养级2。贝类的ECC仿真结果表明，该系统贝类的ECC为49.21 t/km2。当系统达到该容量时，贝类固碳潜力为12.44 t/km2，系统总固碳量可增加12.90 t/km2。同时，贝类向生态圈扩散时，生态系统表现出高度的成熟和稳定。综上所述，在海洋牧场管理过程中，合理控制贝类的数量可以提高系统的稳定性，增加其固碳能力。研究结果可为未来海洋牧场的生态服务功能提供科学参考，增强海洋牧场生态系统的固碳服务功能。

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Marine ranching enhances ecosystem stability and biological carbon sequestration potential: insights from Ecopath with Ecosim model simulation of 30-year ecological path of a national marine ranching in China

IntroductionMarine ranching is an effective marine ecosystem protection measure that not only helps protect marine resources, but also has an important carbon sink function.MethodsThis study took the Haizhidu marine ranching in the Bohai sea of China as the research object, constructed 20 functional groups in the area, and used the ecosystem model Ecopath with Ecosim (EwE) and stable isotopes (δ13C and δ15N) to model the system, evaluate the biological structure, energy transfer efficiency, and ecological carrying capacity (ECC) of different functional groups in the system, and calculate the carbon sequestration potential when shellfish reach ECC and the impact of marine ranching construction on system stability and maturity.Results and DiscussionThe results of the study on the characteristic parameters of the marine ranching system show that in the Haizhidu marine ranching ecosystem, the functional group with the highest biomass is the sediment detritus functional group (37.75 t/km2), followed by phytoplankton (21.40 t/km2), and the lowest is the other pelagic fishes (0.26 t/km2); the highest trophic level is the Platycephalus indicus (3.70), followed by the 3.43 of Sebastes schlegelii and cephalopods; the energy transfer efficiency is mainly concentrated in the trophic levels I and II. The simulation results of the shellfish ECC show that the ECC of shellfish in this system is 49.21 t/km2. When the system reaches this capacity, the carbon sequestration potential of shellfish is 12.44 t/km2, and the total carbon fixation of the system can increase by 12.90 t/km2. At the same time, the ecosystem showed a high degree of maturity and stability when the shellfish proliferated to the ECC.ConclusionIn general, the results show that in the process of marine ranching management, reasonable control of the number of shellfish can improve the stability of the system and increase its carbon sequestration capacity. The research results can provide a scientific reference for the ecological service function of marine ranching in the future and increase the carbon sequestration service function of marine ranching ecosystems.

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来源期刊

Frontiers in Marine Science Agricultural and Biological Sciences-Aquatic Science

CiteScore

5.10

自引率

16.20%

发文量

2443

审稿时长

14 weeks

期刊介绍： Frontiers in Marine Science publishes rigorously peer-reviewed research that advances our understanding of all aspects of the environment, biology, ecosystem functioning and human interactions with the oceans. Field Chief Editor Carlos M. Duarte at King Abdullah University of Science and Technology Thuwal is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics, policy makers and the public worldwide. With the human population predicted to reach 9 billion people by 2050, it is clear that traditional land resources will not suffice to meet the demand for food or energy, required to support high-quality livelihoods. As a result, the oceans are emerging as a source of untapped assets, with new innovative industries, such as aquaculture, marine biotechnology, marine energy and deep-sea mining growing rapidly under a new era characterized by rapid growth of a blue, ocean-based economy. The sustainability of the blue economy is closely dependent on our knowledge about how to mitigate the impacts of the multiple pressures on the ocean ecosystem associated with the increased scale and diversification of industry operations in the ocean and global human pressures on the environment. Therefore, Frontiers in Marine Science particularly welcomes the communication of research outcomes addressing ocean-based solutions for the emerging challenges, including improved forecasting and observational capacities, understanding biodiversity and ecosystem problems, locally and globally, effective management strategies to maintain ocean health, and an improved capacity to sustainably derive resources from the oceans.