Laudon Hjalmar, Järveoja Järvi, Ågren Anneli, Peichl Matthias, Lindgren Amelie
Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden.
Department of Earth Sciences, University of Gothenburg, 405 30, Gothenburg, Sweden.
Ambio. 2025 Dec;54(12):2092-2104. doi: 10.1007/s13280-025-02220-x. Epub 2025 Jul 16.
Peatland rewetting has developed into a key strategy to limit greenhouse gas (GHG) emissions, enhance carbon uptake, and restore biodiversity. With an increasing political ambition to enhance rewetting across many countries, there is a risk of prioritizing peatlands that are most readily available before the ones that result in the largest climate and biodiversity benefits. Based on the best current understanding, we provide a conceptual model of the climate impact and discuss some key steps of progress needed. We focus on Swedish conditions, but also use relevant studies from similar hydroclimatic conditions elsewhere. We argue that the large political interest and investments now made to rewet large areas of peatlands, in combinations with the many unknowns, make it more important than ever to start new rewetting research studies that includes various key aspects of GHG, hydrology, and biodiversity along large climate, land-use history, and nutrient gradients.
泥炭地再湿润已发展成为一项关键战略，用于限制温室气体排放、增强碳吸收并恢复生物多样性。随着许多国家增强再湿润的政治雄心日益增强，存在一种风险，即优先考虑那些最容易进行再湿润的泥炭地，而不是那些能带来最大气候和生物多样性效益的泥炭地。基于目前的最佳认识，我们提供了一个气候影响的概念模型，并讨论了所需进展的一些关键步骤。我们关注瑞典的情况，但也借鉴了其他类似水文气候条件地区的相关研究。我们认为，目前对大面积泥炭地进行再湿润的巨大政治兴趣和投资，再加上诸多未知因素，使得开展新的再湿润研究变得比以往任何时候都更加重要，这些研究应涵盖温室气体、水文学和生物多样性等各个关键方面，涉及大尺度气候、土地利用历史和养分梯度。
