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研究土壤的地理分布,和各地区土壤的成因、特性和改良的方法,是土壤地理学的重要任务之一。这些研究的成果是可以直接供给各地区的植物种植、农业生产、水利工程和建设工程等等的参考。因之,大力地展开对土壤地理的研究,在当前是一件重要的工作。土壤,是由四种成份组成的。一般说来,在土壤中含量最多的,是矿物质。它是由成土的母质——岩石,在长时期内,经过化学分解或物理分解而变成的。母岩对於土壤的性状是有很大的关系的。我
The study of the geographical distribution of soil and the origin, characteristics, and methods of soil improvement in each region is one of the important tasks of soil geography. The results of these studies can be directly referenced to plant cultivation, agricultural production, water conservancy projects, and construction projects in various regions. Because of this, vigorously conducting research on soil geography is currently an important task. Soil is composed of four components. In general, the most abundant minerals in the soil are minerals. It is formed by rock-forming parent material, which has been chemically or physically decomposed over a long period of time. Mother rock has a great relationship with soil properties. I