Distribution and Classification of Red Soils in China

摘要: Red soils in China include latosols, lateritic red earths, and yellow earths are mainly equivalent to Oxisols, Ultisols, some Alfisols the US Taxonomy. They cover an area of 102 million ha distributed tropical subtropical regions China, including Hainan, Guangdong, Yunnan, Taiwan, Fujian, Guangxi, Jiangxi, Hunan, Sichuan, Guizhou, Zhejiang, Anhui. Having been subjected intensive weathering, these usually dominated by variable charge minerals such as kaolinite Fe Al oxides. Most acidic, nutrient-deficient low organic matter cation exchange capacity, partly because soil erosion use.