前言我国部分农村严重缺乏燃料,甚至收获的农作物秸杆全部烧掉还不够煮饭之用,当地群众不得不进而挖草根、砍树木,这就造成植被大量减少,农田肥力下降,水土流失,生态失去平衡,气候和环境恶化,致使这些地区的农业生产长期停滞,群众生活十分困难。在世界上也有不少地区严重缺乏燃料,由于大量的挖草根、砍树木,而造成北非撒哈拉沙漠的扩展,印度河和恒河流域的洪水泛滥、南美亚马逊河的气候恶化。因此,农村燃料问题在国内外都是一个普遍、严重而又急待解决的问题。近年来我国从事太阳能利用的研究工作者,一向十分重视太阳灶的研制工作,以解 Foreword In some rural areas in our country, there is a serious shortage of fuel, and even the crop straw harvested is not enough for cooking. The local people have to dig their roots and cut trees, resulting in a large reduction of vegetation, declining farmland fertility, soil erosion, ecology Losing balance, deteriorating climate and the environment have caused long-term stagnation of agricultural production in these areas and made it very difficult for the people to live in the country. In many parts of the world, there is also a serious shortage of fuel. Due to extensive digging of the roots and cutting of trees, the expansion of the Sahara in North Africa and floods in the Indus and Ganges valleys have deteriorated the climate in the South American Amazon. Therefore, the rural fuel issue is a common, serious and urgent issue both at home and abroad. In recent years, China’s research workers engaged in solar energy utilization, has always attached great importance to the research and development of solar cookers to solve