以耕层土壤质地类别作为制图单位，分为轻粘土、重壤土、中壤土、轻壤土和砂质土五种类型。

The soil were divided into five groups of soil, e, g, light clay, heavy loam, medium loam, light loam and sandy soil, using the group of soil texture of plowed layer as the mapping unit.

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无耕最好是用在砂土中，不过在重质黏土中，秋天传统的耕作需要去充分地打散泥土为了庄稼足够的产量。

No-till works best in sandy soils, but in the heavier clay soils, fall traditional plowing is required to break the soil up enough for adequate crop yields.

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