农业利用有机废弃物的生态工程

The Ecological Engineerings of Organic Wastes in Agricultural Utilization

本文运用生态工程将农业利用有机废弃物的主要用途划分为作饲料、肥料、能源、培养料和多层次循环利用5种方式，论述了中国农业利用有机废弃物的历史、现状与水平，对农业利用作物秸秆、畜禽粪便、沼气发酵残余物和有机垃圾的主要生态工程技术、效益作了分析，并探讨了当前农业利用有机废弃物中存在的主要问题和未来发展趋势．

This paper divided the main methods of organic wastes'agricultural utilization into five ways by applying ecological engineerings:as feed, fertilizer,energy source,colture material and multiple-step circulatory utilizati0n,and expounded tbe history,status quo and standard of organic wastes'agricultural utilization. This paper analyzed the principal ecological engineeting techiques and its benefits of utilizing crop residues, livestock excreta,the fermented remainder of marsh gas and organic refuse. At last,the existing problems in the utilization of organic wastes and its future developing trend are also discussed.