红壤是我国南方的主要土壤资源。合理利用红壤,是进一步落实毛主席“以粮为纲,全面发展”方针的一个重要方面,具有广阔的前景。我省的红壤多分布在海拔200—500公尺的山地、丘陵地区。成土母质多为辉绿岩、花岗岩和花岗斑岩、沙岩等。土层深度一般在一米以上,风化层有时可深达15—30米。开垦 Red soil is the main soil resource in southern China. The rational use of red soils is an important aspect for further implementing Chairman Mao’s principle of “taking grain as the key link and all-round development” and has broad prospects. Red soils in our province are mostly distributed in mountainous and hilly areas of 200-500 meters above sea level. The parent material is mostly diabase, granite and granite porphyry, sandstone and so on. Soil depth is generally more than one meter, weathered layer can sometimes be as deep as 15-30 meters. reclamation