农业废弃物生物黑炭转化还田作为低碳农业途径的探讨

Biochar From Agro-Byproducts Used as Amendment to Croplands:An Option for Low Carbon Agriculture

生物黑炭是有机废弃物转化的稳定性碳物质。国际农业废弃物生物黑炭转化技术研究日益活跃,并正在进行农田增汇减排的试验示范。文章介绍了生物黑炭技术发展的背景,以及生物黑炭技术转化和应用研究的国际动态,讨论了生物黑炭技术在应对气候变化中对农业生产和固碳减排的潜在作用,并分析将其纳入国际碳贸易市场和国内自主减排碳交易市场的可能性。最后,提出我国开展农作物废弃物生物黑炭转化与农业应用研究的建议。

Biochar is a relatively stable carboncious material converted from organic waste.Currently more and more attention and efforts are being given worldwide to development of technologies of converting agricultural waste into biochar and field experiments are being carried out on effect of its use on expansion of carbon pool in and mitigation of carbon emission from farm fields.A brief introduction is presented to the background of the development of biochar technologies as well as the progresses worldwide in the study on production and application of biochar.Meanwhile discussions are carried out on potential effects of the application of biochar on crop productivity and sequestration/release of carbon in agriculture and hence on climate change,and analyses are done on the possibility of including the use of biochar into the world C trade and the country＇s independent C emissions trading market.Eventually suggestions are brought forth for research on production and application of biochar in agriculture of the country.