笔者所在的湖南省桂阳县素有“八宝之地”和“有色金属之乡”的美誉,境内现已探明的矿藏达11类103种,铅、锌、银、铁、锰、石墨等储量位居全国前列,其中隐晶质石墨储量在5000万吨以上,占全国的三分之一。从整个县域来讲,矿产业及其相关产业成为全县经济的支柱,对全县经济的贡献率达 Guiyang County, where the author is located, is known as “Babao land” and “hometown of non-ferrous metals”. Up to now, there are 11 kinds of ore reserves of 103 kinds in China, with lead, zinc, silver and iron Manganese, graphite reserves ranked the forefront of the country, of which cryptocrystalline graphite reserves of 50 million tons or more, accounting for one third of the country. From the perspective of the entire county, the mining industry and its related industries have become the pillar of the county economy, the contribution rate of the county economy