生物质炭之低碳农业

The Model of Low C Agriculture Based Upon Biochar

农业生产过程与全球气候变化息息相关,如何减少农业温室气体排放,并探寻土壤固炭方法已经成为当前农业与环境研究中的热点。旨在摸索一条由生物质炭化技术为基础的低碳农业发展的可能途径。从低碳这一热点问题出发,对低碳农业的定义、特征、途径进行了基本阐述,同时论述了生物质炭的基本特征,及生物质炭在应用上的农学和环境学价值,并重点讨论了如何利用生物质炭发展以低能耗、低排放、低污染为特征的低碳农业的可能模式,最后指出了当前生物质炭在低碳农业研究和利用方面所面临的问题和挑战。

Nowdays, agricultural is closely linked to the global climate changes exploring the way to reduce agricultural greenhouse gas emissions, and sequester soil carbon has become a hot issue in the current agricultural and environmental research. This paper aims at exploring the possible ways to develop low-carbon agriculture, which is characterized by low energy, low emissions and low pollution, by using biomass pyrolysis technique. Firstly, the definition, characteristics of low-carbon agriculture is described, and the ways to realize it are also discussed. Secondly, the basic characteristics of biochar, and its value in terms of agriculture and environment are discussed. Mostly, the possible modes of biochar integrated system are emphatically discussed in the context of low-carbon agriculture. Finally, the challenges exited nowadays are pointed out.