That sounds interesting. An important value to planning potentials and possibilities. It would be good to know something about the available waste biomass stock in the area, and to try to get a grasp of numbers to help us understand thresholds of sustainable harvesting. When we have a better understanding of available sustainable sources and quantities, we calculate benefits of biochar amended soils to growth rate ( RE: Conversion of CO2 & H2O to carbohydrates ). Considering different biomass growth zones, such as various food crops, forests, edible forest gardens, and all other unique ecosystems, there should be a sweet spot where we can go beyond sustainability, accelerating growth of the biosphere's carbon capturing biomass stocks. It seems this thinking will transform our destructive over consumption to a natural-whole symbiosis of humans within our biosphere.