贵州土壤的发生特性及分布规律

贵州省在云贵高原的东部,大地构造是滇桂台向斜和鄂黔台向斜的一部分.境内地形地貌复杂,山峦起伏,丘陵盆地,高山峡谷和宽谷盆地交错分布,具有显著的高原岩溶地貌特征.高原面呈阶梯状上升,海拔高度由600米左右逐渐升高到2300米左右.成土母质类型在山区以残积物和坡积残积物为主.

THE CHARACTERISTICS OF SOIL GENESIS AND THE REGULARITY OF SOIL DISTRIBUTION IN GUIZHOU PROVINCE

Guizhou is a mountainous plateau situated in subtropical region.Desilicification and allitic processes are both occurred in soil forming process of the regional soils such as yellowbrown earth,yellow earth,red earth and latosol.The effect of parent material on the soil depends on the types and property of different parent rocks.For regional soils,parent material is the criterion for the classification of soil family level.The formation and property of regosols are affected more greatly by the parent material,while the influence of regionality is only reflected in the classification of suborder level.The influence of vegetation and cultivative activity on the soil genetic property is reflected markedly in fertility of soil and the most remarkable influence of human activity is on the paddy soil.Guizhou is a mountainous plateau situated in subtropical region.Desilicification and allitic processes are both occurred in soil forming process of the regional soils such as yellowbrown earth,yellow earth,red earth and latosol.The effect of parent material on the soil depends on the types and property of different parent rocks.For regional soils,parent material is the criterion for the classification of soil family level.The formation and property of regosols are affected more greatly by the parent material,while the influence of regionality is only reflected in the classification of suborder level.The influence of vegetation and cultivative activity on the soil genetic property is reflected markedly in fertility of soil and the most remarkable influence of human activity is on the paddy soil.