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.
大气逆辐射在东北冷区最明显， 在黄土高原区最弱；地表长波辐射在西北干旱区最强而在东北冷区最弱。
The downward long-wave radiation is strongest in the cold region and weakest in the Loess Plateau while the upward long-wave radiation is obvious in the arid region and weak in the cold region.
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