我国碳酸盐岩分布很广,占全国土地总面积的七分之一,而以广西、贵州和云南最为集中。在热带、亚热带地区,由其风化发育的土壤与赤红壤、红壤显著不同,通称为石灰土,归于隐域土中。我国对石灰土研究颇早,四十年代即有红色石灰土和黑色石灰土之 Carbonate rocks in China are widely distributed, accounting for one seventh of the total land area of ​​the country, while Guangxi, Guizhou and Yunnan are the most concentrated. In the tropical and subtropical regions, the soils developed by the weathered soils are remarkably different from the lateritic and red soils, commonly known as lime-soils, and they are classified as hidden soil. Lime soil study quite early, the forties that are red lime soil and black lime soil