[討論] 盆地容易發展成大都市?
如題 這是長久以來的疑惑
除了港口 河岸之外 盆地常是現代大都市容易發展的地形
但是 為什麼呢? 是因為河川沖積利於農作嗎 還是容易防衛..?
當初人口聚居之初 都市快速發展的關鍵原因是什麼?
除了有河川流過的城市之外 其他的案例呢
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