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黑钙土
温带半干润气候地区草原植被条件下形成的,表层具有深厚腐殖质层、下部具有钙积层或石灰反应的土壤。在中国土壤系统分类为均腐土纲,半干润均腐土亚纲;在美国土壤系统分类中,黑钙土属于软土纲的多种类型:冷冻性冷凉软土、黏化冷冻软土、钙化冷凉软土、黏化半干润软土、弱发育半干润软土、钙质半干润软土等。
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national "double first-class" discipline construction institutions in grassland science discipline
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