云南省新构造运动与土壤形成及分布的关系

Effects of Neotectonic Movement on the Soil Formation and Soil Development in Yunnan Province

云南在高原面及若干河谷高阶地上,有富铝化作用甚强的古红土,且纬度愈高,分布的海拔愈高,这与常理不符,它与各地新构造运动上升量的差异有关.新构造运动观点可圆满解释:红色盆地的分布状况、红色盆地内紫色土的淋溶程度差异、无量山主峰的形成,昆明山字型构造对土壤发育的影响、砖红壤与燥红土等土壤的形成规律等等.云南全境受新构造运动影响深刻,导致土壤分布复杂,本文对此做了“土壤四度空间分布”概念的分析.

In Yunnan Province on plateau plain and higher terraces of some valley the red paleosols with a deep allitic process can often be seen.Moreover with the increase of latitude the red paleosols are situated on a higher altitude,which are not accorded with the general rule and associated with the different uplift range of neotectonic movement. Neotectonic movement analysis can satisfactorily explain:the distribution pattern of red basins,different leaching degree of purple soil in the red basins,the formation of high peak of Wuliang mountain,influences of Kunnming Epsilon(∈)Type Structure on the soil development,distribution of lateritic soil and dry red soil etc. The whole area of Yunnan Province are deeply influenced by the neotectonic movement.It resulted a very complicated soil distribution,which is analysed by the con- cept of four-dimensional space.