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几千年来,作物秸杆和薪柴一直为农村提供了大部分生活用的能源。由于农村人口的增加,作物秸杆绝大部分作为燃料还不敷需要,因之对薪柴的需要量也日益增加,再加经济建设对木材的需要,不少地区出现了林木消耗量超过生长量的现象。从生物圈的物质和能量循环来看,太阳能的一部分能量通过光合作用固定在植物体内,直接或间接地成为动物界的能量来源。各种动物蛋白则都是从植物所含营养物质转换得来的。作物秸杆和杂草自古以来是食草家畜的主要饲料,所以作物秸杆的直接燃烧,就会影响动
For many thousands of years, crop straws and firewood have provided most of the energy for life in rural areas. Due to the increase of rural population, the vast majority of crop straw is still not enough for fuel. As a result, the demand for firewood is also increasing. Coupled with the need for economic construction for timber, forest consumption exceeds growth in many areas The phenomenon of volume. From the biospheric material and energy cycle point of view, part of the solar energy through photosynthesis in plants fixed in the body, directly or indirectly, as the energy source of the animal kingdom. All kinds of animal protein are derived from the nutrients contained in the plant. Crop straw and weeds have been the main feed for herbivores since ancient times, so the direct burning of crop straws can affect moving