四川盆地多为紫色土壤，气候暖湿，农作物可四季生长，盛产水稻、油菜和甘蔗。
The purplish soil of the warm and humid Sichuan Basin is green with crops in all four seasons, including paddy rice, rapeseed and sugarcane.
红紫泥、灰棕紫泥、红棕紫泥依次是四川盆地典型具有代表性的酸性、中性和石灰性紫色土。
The typical and representative purple soils in Sichuan Basin are red purple soil (acidic), gray-brown purple soil (neutral), and red-brown purple soil (calcareous).
采用比较研究法和辅以定点追踪观测，研究了四川盆地丘陵区几种主要紫色土退化的微形态特征。
The micromorphology of main kinds of degradated purple soils in the hilly area, Sichuan Basin, have been revealed by contrasting with normal soils and trace researching in the same site.
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