壤土指土壤颗粒组成中黏粒、粉粒、砂粒含量适中的土壤。质地介于黏土和砂土之间,兼有黏土和砂土的优点,通气透水、保水保温性能都较好,是较理想的农业土壤。 重壤土是由粗细不一的粉末组成,其中粉沙和粘粒占多数,略有粗糙感。可塑性明显,可揉成1.5~3mm细条,并能弯曲成2~3cm直径的土环,不断裂,但有裂缝。 特点是调水后用手摸时没有砂性感觉,用手指压时可留下明显的指纹。
该土属红壤亚类,土壤质地以中壤土和重壤土为主,氮、磷及有机质含量中等偏下。
The soil which is mainly composed of middle and heavy clayey loam belongs to sub-laterite.
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.
对松嫩平原地区苏打渍盐土公路的路基壤土本土化利用有十分重要的意义。
Songnen plain areas of saline soil type soda highway roadbed soil using the importance of localization significance.
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