29-01-2025

Artikel in Landschap over veenmosteelt

Recent verscheen het artikel van Ralph Temmink en collegae, waarin meer dan tien jaar onderzoek aan veenmosteelt in Duitsland wordt samengevat. Dit wordt ook vertaald naar mogelijkheden voor de situatie in Nederlandse veenweiden. Het onderzoek betreft een samenwerking tussen Copernicus Institute of Sustainable Development, Utrecht University, Department of Ecology (Radboud University) van Radboud Institute for Biological and Environmental Sciences (RIBES), Universität Greifswald en B-WARE Research Centre.

Samenvatting (ENG)

Drained peatlands emit large amounts of greenhouse gases and cause downstream nutrient pollution. Rewetting aids in restoring carbon storage and sustaining the unique biodiversity of peatlands. However, rewetting for nature restoration is not always socio-economically feasible. As an alternative, the cultivation of Sphagnum biomass after rewetting allows agricultural production (paludiculture). In this paper, we summarize over ten years of research on Sphagnum paludiculture and translate the results to the Dutch context. We studied organic matter buildup, and carbon and nutrient accumulation at a 16-ha Sphagnum paludiculture area in Northwest-Germany. We show that 10 years of Sphagnum growth resulted in a new 30 cm thick organic layer, sequestering 2,600 kg carbon, 56 kg nitrogen, 3.2 kg phosphorus, and 9.0 kg potassium per ha/yr. These results highlight that Sphagnum paludiculture results in a rapid buildup of organic matter and can be a sustainable alternative for conventional drainage-based land use. The translation of the results to a Dutch context warrants system knowledge, as the studied system is low in bicarbonate and relatively nutrient poor, while a large proportion of the Dutch peatlands (mainly fen systems) are characterized by high bicarbonate concentrations (toxic for peat mosses) and relatively nutrient rich. We conclude that Sphagnum paludiculture advances rapidly with various pilots in Germany and the Netherlands and shows promise for large-scale implementation.

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Bericht van 28 januari 2025 op LinkedIn.