红壤是一种棕红色的土壤,广泛分布在我国南方山丘地区。在雨水丰富的地区,冲刷严重,具有酸性大、养分不足和结构不良、保水保肥力弱的特点,除采用相应的改良措施外,还应控制水土流失,不断提高地力,促进农业生产的发展。 (一)兴修水利,平整土地,克服干旱与冲刷红壤地区,多属丘陵地形,植被少,既缺水,又怕水。春、夏季雨水集中,降雨强度大,常造成表土严重侵蚀,土肥大量流失,致使士壤瘦瘠。秋、冬少雨,干旱较为严重。因此,必须因地制宜兴修山塘、水库,拦蓄雨水,既可防止土肥流失,又可供旱季使用;山垄 Red soil is a reddish brown soil, widely distributed in the hills in southern China. In areas with abundant rainstorms, the scouring is serious with the features of acidity, inadequate nutrients and poor structure and weak water and fertility. Besides the corresponding improvement measures, soil erosion and soil erosion should be controlled and soil fertility improved so as to promote the development of agricultural production. (A) to build water conservancy, land leveling, to overcome the drought and red soil erosion area, mostly hilly terrain, less vegetation, both water and water. Spring and summer rainwater concentration, rainfall intensity, often resulting in serious erosion of topsoil, soil loss in large quantities, resulting in lean soil thin. Autumn and winter less rain, the drought is more serious. Therefore, it is necessary to revise ponds and reservoirs and save rainwater according to local conditions, so as to prevent loss of soil fertilizers and use them during the dry season.