Study on the Relation between Development and Protection of Greenary in Built-up Areas.

我国大都市区建成区绿地稀缺问题日益严重，本文通过分析我国城市规划体系中绿地减少与土地开发之间的关系来考察这一问题。建成区绿地稀缺的原因之一是开发许可上的“漏洞”。由于开发许可制度是对开发商施加繁重条件的工具，开发商理应找到一个“漏洞”。为了应对绿色空间的稀缺，保护绿色开放空间，一些大都市地区的地方政府开始实施一些制度。这些制度分为四种类型：1.开发后保护绿地；2.允许开发时保护绿地；3.地方政府与森林所有者达成协议在一定时期内保护森林；4.保护绿地基金。我们对这四种类型进行了研究，并提出了一种新的综合制度来保护我国大都市区的空地。

The Problem about Scarcity of Greenary in Built-up Areas is Getting Worse in Our Metropolitan Areas.We Examine this Problem by Getting Light on the Relation between Decrease of Greenary and Development of Land through City Planning System in our Country. One of Causes of the Scarcity of Greenary in Built-up Areas is "Loopholes" in Development Permission. Since Development Permission System is a Vehicle for Imposing Onerous Conditions on Developers, it Behooves Developers to Find a "Loophhole".To Cope with the Scarcity of Greenary and to Protect Green Open Spaces, Some Local Government in Metroporitan Areas Put Some Systems into Practice. Those Systems on Grouped Four Types as Follows:1. Protection of Greenary after Development is Practiced, 2. Protection of Greenary when Development is Permitted, 3. Protection of Forests for a Fixed Period of Time by Agreement between Local Gorvernment and the Forest Owner, 4. Fund for Protection of Greenary.We Examine those Four Types and Propose a New Comprehensive System to Protect Open Spaces in our Metroporitan Areas.