集镇可持续发展的实质是既要让农村居民享受现代文明的城市生活,又要保护乡村良好的自然环境,这必然涉及到集镇群体的规模体系构成和职能分工。集镇规模体系是相对单个集镇而言,当社会经济发展到一定阶段时,县域内若干个社会、经济等方面相互联系的集镇,由于发展条件和历史选择不同,必然构成一个规模体系。它是在县域范围内具有不同规模等级、职能有一定分工、相互联系、空间分布有序的集镇群体。其职能是组织商品的生产、流通、提供各种服务、实施社会管理等。本文首先提出了集镇规模体系的优化标准,然后提出了江苏县域集镇规模体系的框架和逐步实现上述框架的集镇发展的程序。

The essence of the town sustainable development is to let rural residents enjoy modern urban life and at same time protect rural good environment, which must concern town scale system.Town scales system, which is different from single town, is consist of many towns which have economic and social relation and have different functions.This paper put forward criteria of town scale system, which meet above-mentioned conditions at first.Then the paper give frames of town scale system in Jiangsu and polices which can achieve frames of development of town scale system.