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The evenness degree evaluation of parkland location in the main province garden cities of Shandong Province based on 1km grid model

机译:基于1KM网格模型的山东省主省花园城市的均匀度评价

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摘要

The evenness is one of the most important evaluation indexes for urban park green space quality. In this study, four province garden cities were chosen as the study area, including Tai'an, Linyi, Dezhou, Binzhou, and Dongying in Shandong Province. First, the limit and parkland digital location map of each urban area were obtained by visual interpretation from high spatial images such as, Quickbird and Spot5. Then, using GIS technology, the 1km grid with definite start point was drawn. Based on the 1km grid, according to national garden city standards published by State Ministry of Construction, the evenness model was developed using two factors, the ratio of blind grid zone of green space in entire urban area and the standard error of ratio of green space in service grid. Using the developed model, the spatial location evenness degree (SLED) of each city was computed. The result showed that Linyi city has the largest parkland area and Per capita park green space. But the SLED is only 3. Dongying city has the best SLED, although the per capita park green space is smaller than that of Linyi city. In Binzhou and Tai'an city, the SLED is similar, although the quantity has obvious difference. Hence, the evenness evaluation based on 1km model is more comprehensive for indicating the quality of parkland space quality.
机译:均匀性是城市公园绿色空间质量最重要的评价指标之一。在这项研究中,选择了四个省的花园城市作为研究区,包括泰安,临沂,德州,滨州和山东省东营。首先,通过从高空间图像(如Quickbird和Spot5)的视觉解释获得每个城市地区的极限和坦克数字定位图。然后,使用GIS技术,绘制了具有明确起点的1km网格。基于1公里的网格,根据国家建设部出版的国家园林城市标准,均匀模型采用了两个因素,整个城市地区的绿地空间盲栅区的比例和绿地的标准误差在服务网格中。使用开发的模型,计算每个城市的空间位置均匀度(SLED)。结果表明,临沂市拥有最大的公园地区和人均公园绿地。但雪橇只有3.东营城拥有最好的雪橇,虽然人均公园绿地小于临沂市。在滨州和泰安市,雪橇类似,虽然数量有明显的差异。因此,基于1km模型的均匀性评估对于表明乐园空间质量的质量更全面。

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