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四川盆地内丘陵地区主要成土母岩系中生代侏罗、白垩系,紫色、紫红色页岩,局部夹砂岩。地面土层瘦薄,雨水冲刷严重,丘坡地母岩大面积出露,分布范围约占全省耕地的一半。对紫色页岩如何进行合理改造,变不利因素为有利条件,变瘦薄土层为肥厚土壤,这是果树上山,大搞农田基本建设,实现农业机械化,应该首先研究解决的问题。
The main rocks in the hilly area of Sichuan Basin are Mesozoic Jurassic, Cretaceous, purple and purple shale and partial sandstone. Thin surface soil, rain erosion serious, Qiupo mother rock exposed large area, the distribution of about half of the province’s arable land. The purple shale how to make a reasonable transformation, unfavorable factors for the favorable conditions, thin soil is thin soil, which is the fruit trees up the farmland infrastructure, agricultural mechanization, we should first study to solve the problem.