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栗钙土系列包括栗钙土、棕钙土和灰钙土.是中国北方分布范围极广的一些草原土壤。这类土壤均具有较明显的腐殖质累积和石灰的淋溶一淀积过程.并多存在弱度的石膏化和盐化过程。湿带半干旱地区干草原下形成的土壤.表层为栗色或暗栗色的腐殖质量.厚度为25~45厘米.有机质含量多在1.5%~4.0%;腐殖质层以下为含有多量灰白色斑状或粉状石灰的钙积层石灰含量达10~30%。中国栗钙土土壤性质表现出明显的地区差异。东部内蒙古高原的栗钙土具少腐殖质、少盐化.少碱化和无石膏或深
Chestnut soil series includes chestnut soil, brown earth and lime soil, which are some of the most widely distributed grassland soils in northern China. All of these soils have obvious accumulation of humus and leaching of lime, and there are many weak gypsum and salinization processes. Wetlands in the semi-arid region formed under the steppe steppe. The surface is a maroon or dark chestnut humus quality. Thickness of 25 to 45 cm. Organic matter content of more than 1.5% to 4.0%; humus layer below contains a large amount of gray-white spots or powder Lime calcareous lime content of 10 ~ 30%. The soil properties of Chinese chestnut soil showed obvious regional differences. Chestnut soil in eastern Inner Mongolia plateau is less humus, less salinized, less alkalized and gypsum-free