"Cookstove-Biochar Ecosystems" for Clean Cooking and Soil Restoration in Bangladesh

"Cookstove-Biochar Ecosystems" for Clean Cooking and Soil Restoration in Bangladesh

Bangladesh faces harsh challenges as it loses land to rising sea levels. However, the impact can be buffered if we raise the productivity of inland soils. Presently, yield is being limited by low soil organic matter.  We can increase soil humus by applying biochar fertilizers.  We have seen dramatic increases in crop yield. The challenge has been to make biochar, because good biomass in high demand for use as cooking fuel. We make biochar sustainably as a by-product of cooking by using a culturally-appropriate top-lit updraft (TLUD) gasifier stove for rural homes. When implemented in villages, we call this “the cookstove-biochar ecosystem” wherein the women with their cookstoves are ‘keystone’ species that make biochar possible, and farmers with their biochar are ‘ecosystem engineers’ that make ‘permanent’ increases in soil organic matter and biological productivity. Improved crop yields incentivize the adoption of cookstoves and the production of biochar.