USING BIOCHAR FOR COST-EFFECTIVE CO2 SEQUESTRATION IN SOILS
Biochar, when placed in soil, greatly improves the soil – leading to much improved productivity, as well as a reduced need for fertilizers. Such biochar also removes carbon dioxide from the atmosphere – perhaps for millenia, and this form of carbon sequestration may be cheaper than by any other means. The millenia claim is based on experience with ancient Amazonian “terra preta (dark earth) soils. When the biochar is produced, one hopes for a high-value use for the accompanying pyrolysis gases. Two such early high-value applications are the sugar refining industry and charcoal-making (not charcoal-using) cook-stoves. At this time, there is no accepted methodology for providing carbon credits for these potentially huge triple (energy-atmosphere-soil) benefits. Emphasis below is on commercialization status, building on its importance to rural societies. This paper expands on the authors first biochar paper from ten months earlier, during which time much has happened.
Ronal W.Larson
Larson Consulting 21758 Mountsfield Drive Golden, Colorado 80401, USA
国际会议
2007世界太阳能大会(Proceedings of ISES Solar World Congress 2007)
北京
英文
2007-09-18（万方平台首次上网日期，不代表论文的发表时间）