And the boundary of them has the same lithologic character: the ravinement surface of river course or exposure mudstone of flooding plain and root clay.
二者的界面是相同的，均为河道砂体底部的冲刷侵蚀面或者是暴露过泛滥平原泥岩、根土岩等。
Is the existing root zone high in silt and clay?
当前的根系层是否高含淤泥和粘土？
The utility model relates to a blackland and clay root and stem crop ditch loosening machine for loosening soil.
本实用新型涉及一种疏松土壤的黑粘土地根茎作物沟土疏松机。
The research indicates that red clay and mantle rock soil, which distribute both sides of gully and with rich groundwater, are better for shallow-root tree to grow.
研究结果表明，红胶泥和风化岩沫土土壤地类主要位于沟谷两岸，地下水供给较为充裕，是浅根性树木生长发育的良好土壤类型；
The research indicates that red clay and mantle rock soil, which distribute both sides of gully and with rich groundwater, are better for shallow-root tree to grow.
研究结果表明，红胶泥和风化岩沫土土壤地类主要位于沟谷两岸，地下水供给较为充裕，是浅根性树木生长发育的良好土壤类型；
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