黄土堆积的总厚度在地域上有明显的变化，陇东、陕北、晋西是黄土分布的中心区。
The aggregate thickness of loess has a clear regional variation with the east of Gansu, the north of Shannxi, the east of Shanxi being the center regions.
晋西北黄土高原丘陵区是黄土高原水土流失最为严重的地区之一，生态环境极其恶劣。
The hilly Loess Plateau in North-west of Shanxi province is one of the most serious soil erosion in Loess Plateau, the ecological environment is extremely bad.
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