一、问题的提出《元史·地理志序》开篇即言:初,太宗六年甲午,灭金,得中原州郡。七年乙未,下诏籍民,自燕京、顺天等三十六路,户八十七万三千七百八十一,口四百七十五万四千九百七十五。宪宗二年壬子,又籍之,增户二十余万。世祖至元七年,又籍之,又增三十余万。十三年,平宋,全有版图。(至元)二十七 First, the issue put forward “Yuan Shi geography order” that is the beginning of words: early, Taizong six years afternoon, gold, Central Plains county. Seven years B, Xiazhao people, since Yanjing, Suncheon and other thirty-six road, eight hundred and seventy-three thousand seven hundred and eighty-one, mouth four hundred seventy-four thousand nine hundred seventy-five. Renzong two years Kenso, and membership, more than 200,000 households. Seven generations of the ancestors to Yuan, and membership, another more than 300,000. Thirteen years, Ping Song, all the territory. (To yuan) twenty-seven