沈抚连接带“三生”空间的功能均衡性分析

随着人口增长和城市化发展,国土空间利用类型之间的竞争关系逐步增强,空间问题日益突显。自十八大报告明确提出"三生"空间以来,以生产、生活、生态划分的土地空间类型越来越被关注。该研究以沈抚连接带为研究区域,从土地空间的生产、生活和生态功能出发,构建"三生"功能评价指标体系。采用熵权法进行"三生"功能评价,利用GIS技术分析"三生"功能的空间格局。研究结果表明,"三生"功能均较强的街道具有较高的经济发展水平,如五三街道、李石街道,分值为64.96、54.59;生活功能较强的街道一般相邻城市,如五三街道、白塔街道、李石街道,分值为23.15、15.82、11.14,人均道路面积和公共服务设施完备度是主要影响因素;生态功能较高的街道多集中在浑河景观带和北部生态区,如高坎街道、满堂街道、东陵街道,分值为20.50、19.98、19.96,水面面积率、森林覆盖率和景观Shannon多样性是主要影响因素;生产功能较强的街道集中在建设快速区内,如李石街道、五三街道,分值为39.25、25.85,工业产值和服务业产值是主要影响因素。总体上看,受城市和经济建设活动影响强烈的街道的"三生"空间的功能不均衡性较为明显。

THE PROPORTIONALITY OF THE FUNCTIONS OF PRODUCTION,LIFE AND ECOLOGY IN CONNECTION ZONE BETWEEN SHENYANG AND FUSHUN

tWith the population growth and urbanization development, the competition for the land space is increasingly highlighted. Since the concept of the space of production, life and ecology was put forward inthe 18th National Congress of CPC, the land spacehas been attracted wide attention. Taking the connection zone between Shenyang and Fushun as the research area, this paper constructed the assessment index system of production function, life function and ecology function (i.e., three functions), and analyzed the space patterns of three function adopting the entropy and GIS methods. The results showed that the sub-district with stronger three functions had better economic development in space. For example, the three functions in Wusan and Lishi scored 64.96 and 54.59. The district with stronger living function was close to urban living space. For example, the living functionin Wusan, Baita and Lishi scored 23.15, 15.82, and 11.14. The road area per capita and public service facilities were the main factors for stronger living function. The district with stronger ecology function was close to Hun River landscape belt or its northern ecology zone. For example, Gaokan, Mantang and Dongling scored 20.50, 19.98, and 19.96 for ecology function. Water surface area ratio, forest coverage and Shannon diversity were the main factors. The district with strong production function was in constructing zone. For example, Lishi and Wusan scored 39.25 and 25.85, due to the industrial output value. The district with low proportionality on three functions was near the center or in the constructing zone of Shenyang city or Fushun city.