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- and have the nature of high surface humus, medium and slight acid reaction, low BS, strong soil leaching;mesic soil temperature regime and Udic soil moisture regime. 表层腐殖质含量较高，土壤呈中性到微酸性反应，盐基饱和度较低，淋溶作用强烈；
- and 4 diagnostic characteristics, such as Anthrostagnic moisture regime, Udic soil moisture regime, Thermic soil temperature regime and Ferric property. 按照诊断层和诊断特性，划分出各个土系的高级分类单元。
- Hapli-Udic Isohumosol 黑土
- udic moisture regime 湿润水分状况
