我国每年大约有5亿t秸秆被浪费掉,现在农村到处有丢弃的秸秆,不仅污染环境还污染水流、堵塞河道,也威胁了水库的安全;而焚烧秸秆产生的浓烟,既影响飞机升降、高速交通的畅通,也污染了空气,成为一大公害问题。我国又是种草少,秸秆利用率低的国家,利用率只有20%,浪费严重。 About 500 million tons of straw are wasted every year in our country. Nowadays, there are discarded straw everywhere in the countryside. Not only pollute the environment but also pollute the water flow, blocking the rivers, threatening the safety of reservoirs. Incinerating the thick smoke generated by the straw not only affects the movements of the aircraft, The smooth flow of high-speed traffic also pollutes the air and becomes a major public hazard issue. China is another country with less grass and a lower utilization rate of straw, with only 20% utilization rate and serious waste.