brown soil
1. 棕壤：(3)棕壤(brown soil) 棕壤主要分布于暖温带湿润的低山丘陵区,以辽东半岛、山东半岛、河北东部较为集中. 现大部分已垦殖农用或栽果木. (4)褐土(cinnamon soil) 褐土主要分布于陕西关中、山西东南部、河北东北部、山东泰山、沂山西北部山前地区、河南西部,
2. 棕色土：如红化(red earthening)土壤、假潜育化土壤和硬结的砖红壤性土壤与那些尚未变化的棕色土(brown soil)普遍很难区别,但是用土壤微形态技术就较易分辨. 其中盐基饱和的变种是热带最肥沃的土壤,不用土壤薄片技术就不能分清硬化砖红物质与沼铁矿硬层的区别.
3. 棕土：brown rendzina 棕色石灰土 | brown soil 棕土 | brown turf 棕色草炭
4. 棕钙土：brown snow 褐雪 | brown soil 棕鈣土 | Brownian movement 布朗運動
1. There are about 21 kinds of soil in Hebei province, but brown earth is the most common.
2. The fertile and soft brown soil, plenty of rain and small lakes dot the plantation.
3. In the southern corner of the vast complex, dozens of diggers are gouging out the brown soil.