以山东省37个主要园林城市为研究区,利用高分辨遥感影像提取城市公园绿地空间分布信息; 基于GIS技术利用11种网格尺度(500～1 500 m)对城区进行网格化; 按照绿地空白网格区与公园绿地500 m服务盲区最大一致性原则,以相似优先比、最小二乘拟合等方法研究网格单元最优尺度及网格起点,建立公园绿地空间分布均匀度网格评价模型; 并对研究区中的9个地级市城市公园绿地均匀度进行评价和分析。结果表明:800 m网格产生的绿地空白网格区与500 m服务盲区一致性最好,且起点变化时,绿地空白网格区面积稳定; 在9个参与评价的城市中,东营市的公园绿地空间分布均匀; 临沂市、莱芜市、枣庄市、济宁市、德州市和滨州市的趋于均匀; 泰安市和菏泽市的不均匀。
Abstract
Based on high spatial resolution RS images, the urban park green space distribution information of the 37 main garden cities in Shandong province was obtained. Then, each urban was girded by 11 kinds of scale grids(500-1 500 m)using GIS. According to the maximum consistency principle between the green space blank grid area and 500 m service blind area of park green space, the optimal scale of grid unit and starting point of urban grid was obtained by using similarity priority ratio and least square fitting analysis methods. Then, grid evaluation model for uniformity degree of the urban park green space spatial location was established. Using the evaluation model, the uniformity degree of park green space spatial location in the 9 prefecture-level cities among study area was evaluated. The result showed that the green space blank grid area of 800 m grid had the best consistency with 500 m service blind area of urban park green space and its area size had better stability when the urban grid starting point changed, so 800 m should be the priority scale for evaluation model. In the 9 evaluated cities, the spatial location of the urban park green space in Dongying city was uniform; the spatial location in Linyi, Laiwu, Zhaozhuang, Jining, Dezhou and Binzhou city tended to be uniform and the spatial location in Taian and Heze city was not uniform.
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基金
收稿日期:2012-09-10 修回日期:2013-09-13
基金项目:国家自然科学基金项目(31070626); 江苏省测绘科研项目(JSCHKY201212); 江苏省高校“青蓝工程”项目; 江苏省“六大人才高峰”项目
第一作者:高祥伟,讲师,博士。*通信作者:张志国,教授,博士。E-mail: zgzhangcn@163.com。
引文格式:高祥伟,张志国,费鲜芸. 城市公园绿地空间分布均匀度网格评价模型[J]. 南京林业大学学报:自然科学版,2013,37(6):96-100.
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