Loam is a soil with roughly equal proportions of clay, sand and silt.

壤土是由大约等份的黏土、沙和粉砂合成的。

《牛津词典》

Loam is a mixture of sand, silt, and clay.

壤土是砂粒、粉粒和粘粒的混合物。

youdao

The result showed: (1) With the development of community, soil texture changed from silt to clay loam, soil texture was improved obviously.

结果显示：(1)随着群落的发育，土壤质地由群落发育中期的粉土逐渐过渡到发育后期、末期的粘壤土，土壤质地得到了明显的改善。

youdao

The soil should be full of loam, a mixture of sand, silt,clay and organic material.

VOA: special.2009.04.07