Acidity mass-balance 1 Biomass 1 Biomass harvest 1 Biomass harvesting 1 Canada 1 Critical biomass harvest 1 Deposition 1 Forest biomass 1 Forest biomass harvesting Forest soils 1 Forestry 1 Fossil fuels 1 Harvesting 1 Indicator indicator 1 Mass balance 1 Netherlands 1 Public policy 1 Quebec [Canada] 1 Risk assessment 1 Risk perception 1 Soil acidity 1 Soil nutrient depletion 1 Soils 1 Sweden 1 biomass 1 extraction 1 forest soil 1 fossil fuel 1 harvesting 1 mass balance 1