Supply Chain Dynamics of Moving from Peat-Based to Peat-Free Horticulture
Nazli Koseoglu, Michaela Roberts
Abstract
Healthy peatlands provide valuable ecosystem services. Peat extraction damages peatlands, leading to carbon emissions. One of the main reasons for peat extraction is for use in horticulture. Replacing peat with recycled organic materials in horticulture is critical to preserve the valuable ecosystems provided by peatlands and to establish more circular supply chains that are reliant on recycling rather than extraction. Despite the strong policy commitment and budget allocation to restore peatlands, the demand for peat-based growing media remains high and drives most of the peat demand. In our research, we mapped the growing media supply chain, held semi-structured interviews with key stakeholders representing different interests, and surveyed amateur gardeners in the UK to understand the bottlenecks experienced by each profile in ending peat use and how to overcome them. We employed semi-structured key expert surveys to understand the supply chain dynamics and consumer demand, informed by these early interviews and the previous literature, we prepared and distributed an online consumer survey and interviewed supply-side stakeholders to understand their perspectives. The findings indicate that the barriers of availability, cost, and performance are shared between the supply-and-demand-side stakeholders. A portfolio of financial, educational and logistic interventions is required to simultaneously support the supply side to accelerate the transformation of production and supply patterns and to aid the demand side to adapt to growing with compost of recycled organic materials. The policies promoting recycled organic material use in horticulture must be coordinated within the UK and with other parts of Europe focusing on the elimination of the peat content in products rather than peat extraction to avoid extraction and the associated destruction of peat stocks elsewhere.