Peatlands have been disturbed throughout the Anthropocene. Peat extraction and use leads to significant greenhouse gas emissions over a short period. However, not all extracted peat carbon is immediately released into the atmosphere. Our research aims to: (1) develop an environmental systems model to analyse land use changes, the impact of management practices and the fate of peat, (2) determine net biospheric carbon emissions according model scenarios and parameter variation. The model approximates peat mass and accumulation in an undisturbed peatland system, then simulates peat extraction for horticulture. It is coupled with a basic hydrological sub-model and was evaluated using field sample measurements from Eastern Quebec. We will present how management practices such as extraction duration, extraction intensity, and restoration delay impact simulated biospheric carbon emissions. Our simulations will also include the fate of extracted peat, demonstrating how peat use, storage and stabilised peat carbon impact net emissions. Our current restoration and extraction scenarios suggest that it takes several millennia to restore the biospheric carbon store of an extracted peatland. Preliminary work suggests that the biospheric restoration time of carbon can be reduced by 50-75% depending on the assumed fate of peat scenario. Subsequently, offsets required for irreducible emissions to meet the 2050 net-zero target can also be reduced. Our results enable the Canadian peat industry to employ a backwards induction approach to meeting net-zero targets by inferring when net-zero biospheric carbon emissions and carbon neutral conditions will be met with and without offset mechanisms.