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》

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 Xigeda soil is made up of silty loam and silt soil in Panzhihua region, minerals of which are mainly quartz and plagioclase with clay minerals, montmorillonite, illite and kaolinite.

攀枝花地区昔格达土系粉砂壤土和粉砂土，土壤中原生矿物主要为石英和长石，次生矿物主要为蒙脱石、伊利石和高岭石。

youdao

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

VOA: special.2009.04.07