北京有河流，元明清時漕運船舶可以從江南抵達北京。由於氣候變化，北京地區的河流水量漸少，難以為繼。

來源: 信筆由墨於 2023-07-20 16:53:47 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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