国土资源部副部长蒋承菘在讲话中指出：我国煤炭资源十分丰富，经过几十年的努力，全国累计探明煤炭储量已达９０００亿ｔ，产地４９００多个。但是，由于我国人口众多，人均煤炭资源占有量并不丰富，特别是在煤炭资源的开发利用过程中，一些小煤矿的粗放经营、乱采滥挖，... Jiang Chengtao, deputy director of the Ministry of Land and Resources, pointed out in his speech: China’s coal resources are very rich. After several decades of efforts, the accumulated coal reserves in the country have reached 900 billion tons and more than 4,900 sites have been established. However, due to the large population in our country, the per capita possession of coal resources is not rich, especially in the process of development and utilization of coal resources. Some small coal mines operate extensively and indiscriminately.