红壤在亚洲、非洲、拉丁美洲和北美洲有着广泛的分布。我国红壤带跨越热带、亚热带地区,主要分布在长江以南十一省、区,面积达2170000平方公里,占我国土地总面积的20%。红壤地区土壤类型多,资源丰富,是我国主要的粮食基地,也是热带、亚热带 Red soil is widely distributed in Asia, Africa, Latin America and North America. China’s red soil zones span the tropical and subtropical regions, mainly in 11 provinces and regions south of the Yangtze River, covering an area of ​​2.17 million square kilometers, accounting for 20% of China’s total land area. Red soil area soil type, rich in resources, is China’s major grain base, but also tropical and subtropical