There are no changes in dark loessial soils and loessial soils in the Loess Plateau, Cinnamon soils in Shanxi Province and irrigated silting soils in northeastern Xinjiang.

 
  • 黄土高原的黑垆土和黄绵土区,山西北部的褐土区、新疆西北部的灌耕土区没有明显变化。
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