科学家估计约60%的波罗的海沿海海草床已经消失 1。德国研究人员和初创企业正在通过移植幼苗、使用专用机器播种及种植种子等方式，尝试恢复这些受损的海草床 1。尽管损失巨大，但衰退趋势已停止，且2021年在德国波罗的海水域种植的第一片海草床经检查显示生长非常密集 1。海草床在保护海岸线、维持生物多样性和高效固碳方面具有重要价值，海草在海底储存碳的速度比森林快30到50倍 1。
在具体技术路径上，ZosteraTec初创公司利用专门开发的机器将种植的海草束与可生物降解线结合，以减少水下潜水工作量 1。与此同时，GEOMAR Helmholtz Center for Ocean Research Kiel的研究人员正在测试使用种子的方法，因为只有10%的植物产生种子，但种子能提供更高的遗传多样性 1。Thorsten Reusch认为最有希望的方法是先种植单个幼苗作为基础，然后在其间播种以增加遗传多样性 1。
Scientists estimate that approximately 60% of the seagrass meadows along the coast of the Baltic Sea have disappeared 1. Despite this significant loss, researchers at the GEOMAR Helmholtz Center for Ocean Research Kiel and other organizations are actively testing various rehabilitation techniques in German waters, including near Dahme 1. Seagrass beds play a critical role in protecting coastlines, supporting biodiversity, and sequestering carbon, with studies indicating they store carbon in the seabed 30 to 50 times faster than forests 1.
Current restoration strategies involve both mechanical planting and experimental seeding methods aimed at improving efficiency and genetic diversity. The startup ZosteraTec has developed specialized machinery that combines planted seagrass bundles with biodegradable thread, significantly reducing the amount of underwater diving work required for installation 1. Concurrently, researchers at GEOMAR are exploring seed-based approaches; although only 10% of plants produce seeds, this method offers higher genetic diversity compared to vegetative propagation 1. Thorsten Reusch suggests that the most promising strategy involves first establishing individual seedlings as a foundation, then sowing seeds among them to enhance genetic variation 1. Early results appear positive, as inspections of the first seagrass bed planted in German Baltic waters in 2021 revealed very dense growth 1.
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