湖南衡阳、郴州、零陵一带,山脉纵横,地形复杂,矿产资源丰富,已发现的有金、银、铜、铁、锡、钨、锰、锑、铝、铀、铅、锌、硼、砷、镁等金属和非金属矿十多种。受这些矿藏影响,这里分布有各式各样的非常特殊的土壤。常宁县东南曲谭、双安、白砂沿线若干河谷盆地,地势平坦,土层深厚,自流灌溉,在历史上盛产柑桔、柚子等名 The areas of Hengyang, Chenzhou and Lingling in Hunan Province have vertical and horizontal mountain ranges, complex terrain and rich mineral resources. Gold, silver, copper, iron, tin, tungsten, manganese, antimony, aluminum, uranium, lead, zinc, boron and arsenic have been found , Magnesium and other metal and non-metallic mineral ten kinds. Affected by these deposits, there is a wide variety of very special soils distributed. Changning County, southeast of Qu Tan, double security, a number of valley along the white sand basin, flat, deep soil, gravity irrigation, in the history of rich citrus, grapefruit and other names