Nansen Environmental Research Centre (India), Madavana, Kochi, Kerala, India.
Ministry of Earth Sciences, New Delhi, India.
Mar Pollut Bull. 2024 Oct;207:116908. doi: 10.1016/j.marpolbul.2024.116908. Epub 2024 Sep 3.
The increase in climate-related extreme events and ecosystem degradation demands consistent and sustainable climate mitigation efforts. Seagrass playing a key role in nature-based carbon sequestration mitigation strategy. Here, we investigated the role of coral reef connectivity in blue carbon dynamics with seagrass meadows with coral reef connectivity (SC areas) and without coral reef connectivity (SG areas) in Palk Bay, India. The high sediment organic carbon was recorded in SC areas (90.26 ± 25.68 Mg org.C/ha) and lower in SG areas (66.96 ± 12.6 Mg org.C/ha). The maximum above-ground biomass (AGB) was recorded in Syringodium isoetifolium (35.43 ± 8.50) in SC areas and the minimum in Halophila ovalis (7.59 ± 0.90) in SG areas, with a similar trend observed in below-ground biomass (BGB). Our findings highlight the importance of coral reefs in enhancing the blue carbon potential of seagrass ecosystems and underscore the need for integrated conservation and restoration strategies for coral reefs and seagrasses.
气候变化相关极端事件和生态系统退化的增加要求持续和可持续的气候缓解努力。海草在基于自然的碳封存缓解策略中发挥着关键作用。在这里，我们研究了印度帕尔克湾具有珊瑚礁连通性的海草草甸（SC 区）和没有珊瑚礁连通性的海草草甸（SG 区）的蓝碳动态中的珊瑚礁连通性的作用。SC 区记录到的高沉积物有机碳（90.26±25.68 Mg org.C/ha），而 SG 区则较低（66.96±12.6 Mg org.C/ha）。SC 区的最高地上生物量（AGB）记录为 Syringodium isoetifolium（35.43±8.50），而 SG 区的最低地上生物量为 Halophila ovalis（7.59±0.90），地下生物量（BGB）也呈现出类似的趋势。我们的研究结果强调了珊瑚礁在增强海草草甸生态系统的蓝碳潜力方面的重要性，并强调了需要综合保护和恢复珊瑚礁和海草的策略。
