生态敏感性高的城市地域的土地利用是城市规划、建设、管理过程中比较"棘手"的问题之一,经常因为环境保护与建设发展的矛盾而使之处于两难的境地。本文在总结和思辨一般性城市土地利用模式的基础上,借助GIS技术对长春市净月经济开发区的土地利用现状进行生态敏感性评价。结果显示,因特定的水域和人工林环境导致净月区总体上生态敏感性较高,按照划分的极高、高、中、低、非敏感5种生态敏感区,其中度及以上生态敏感区占全区50%左右。作者进一步以生态敏感性分区为前提,总结提出其土地利用的空间结构模式、类型结构模式和管理模式,并指出其中后二者尚在不断完善过程中。

Land-use of urban ecological sensitive region is one of the toughest questions in the domain of urban planning, urban construction and urban management, where dilemmas between environmental protection and urban construction can always be witnessed. Based on identifying and summarizing land-use models of general cities, this paper makes an ecological sensitive assessment on current land-use of Changchun Jingyue Economic Development Zone (the Jingyue Zone) by using GIS. The result indicates that the Jingyue Zone owns a high ecological sensitivity, which can be explained by the special water area and planted forests of the Jingyue Zone. Furthermore, the paper proposes a spatial structure model, a land-use type structure model and a management model of the Jingyue Zone land-use and notifies that the latter 2 models are still in the process of improvement. Besides, this paper also puts forward:1) In the latest 30 years, urban land-use has scarcely been formulized when increasingly complicated modern city, or even post-modern city, is coming into being; 2) The Jingyue Zone, belonging to the typical urban region of ecological sensitivity is restrained by natural and human impacts internally and bound by functional limitation externally; 3) Ecological sensitivity taken into consideration, the land-use of the Jingyue Zone should take a spatial pattern of "low density, multiple clusters and gradient grey"; 4) During land-use structure adjustment and optimization, the proportion of environmental positive land-use and dual-impact land-use should be enlarged to over 90%. This forms the basic land-use pattern that can meet the function designated to the Jingyue Zone and the request of environmental protective screen in the ecological sensitive region; 5) A dual model of development and protection should be set up to manage the land-use of the Jingyue Zone.