据《中国的百家姓》一书介绍,单,有四个读音,shan、chan、dan、ta n,而且各自为姓。其中,作第一种读音时并不少见,位列《百家姓》第182位。它分布较广,来源也很多:有些出自姬姓,是黄帝的后代;有些出自古代氏族;有些是由少数民族姓氏所改或简化。笔者走访了户籍部门得知,全市共有单姓5560人,永嘉县就占了一半,集中在桥头一带。瓯北、上塘镇少量的单姓人家也是由桥头迁入。鹿城区有单姓2150 According to “China's hundred surnames,” a book introduction, single, there are four pronunciation, shan, chan, dan, ta n, and each surname. Among them, as the first pronunciation is not uncommon, ranked “Baccarat” 182th. It is widely distributed and has many origins: some come from Ji, the descendants of the Yellow Emperor, some from the ancient clans, and others are simplified or simplified by the surnames of ethnic minorities. I visited the household registration department that the city has a single single surname 5560 people, Yongjia County accounted for half, concentrated in the bridge area. Oubei, on the town a small number of single-family name is also moved into the bridge. Lucheng District has a single name 2150