The dark loessial soil (Heilutu) is not only a main zonal soil group in the loess plateau of northwestern China, but an ancient cultivated soil.
黑垆土是我国西北黄土侵蚀地区主要的地带性土类，也是一种古老的耕种土壤。
Huangma soil on the plain is the main cultivated soil on the Loess Plateau.
塬地黄麻土是黄土高原的主要土种。
Huangma soil on the plain is the main cultivated soil on the Loess Plateau.
塬地黄麻土是黄土高原的主要土种。
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