可耕地麵積，可澆灌的耕地麵積，可抵抗一定程度的自然災害的可澆灌的耕地麵積，也是重要因素。

來源: 吾於 2019-05-04 05:11:57 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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