在广大农村,每到夏收、秋收时节,大量秸秆、稻谷壳、果树枝等“废物”堆放在田间地头,最后被付之一炬。这不仅浪费了宝贵的物质资源,而且造成了严重的空气污染。其实这些农村废弃物中却蕴藏着巨大的能量,如果开发利用好了,可以循环 In the vast rural areas, during the summer harvest and harvest season, a large amount of “wastes” such as straw, rice hulls, and fruit twigs are piled up in the field and finally burned. This not only wastes valuable material resources, but also causes serious air pollution. In fact, these rural wastes contain enormous energy. If they are developed and utilized, they can be recycled.