东北平原
From Wikipedia, the free encyclopedia
东北平原来勒中国东北部大兴安岭、小兴安岭搭长白山之间,北起嫩江中游,南至辽东湾,海拔大多低于200米,面积达35万平方公里,是中国面积最大个平原。东北平原土层厚,土地肥沃,耕地广阔,属于世界三大黑土区其中之一,是中国主要个粮食产区。
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