【摘要】 以"国家园林城市"——福州市主城区为例,利用2010年Spot卫星遥感影像图,基于GIS集成技术,用1km×1km、1.5km×1.5km和2km×2km3种尺度的方格网将研究区划分为若干个样本单元,引入种群生态学空间分布聚集度测定指标和模型,并结合分形模型,对其公园绿地空间格局特征进行定量分析.结果表明:(1)福州市主城区公园绿地总体配置水平不高,3种覆盖方格网比例均低于40%;(2)3种方格网尺度下,均呈现明显的聚集分布特征,聚集强度的尺度效应为2km×2km>1.5km×1.5km>1km×1km,面积聚集强度大于数量聚集强度;(3)空间分布呈向心指向,城市"绿心"格局显著,但过于集中.该研究旨在丰富城市绿地空间分布的研究方法,也为研究区公园绿地的规划设计提供科学的决策依据.更多还原

【Abstract】 Taking the main urban area of Fuzhou(National Garden City) for example and using satellite remote sensing imagine of Spot in 2010,the research area is divided into several sample units in three sizes(1 km×1 km,1.5 km×1.5 km and 2 km×2 km) of grids by GIS technology.Combined with fractal model,in-depth quantitative analysis on its spatial distribution pattern of public green space is made by attempting to apply aggregation index of ecosystem spatial distribution and model.The results show as follows:(1) the public green space is not well distributed in general,and the scale of the three grids covered by the green space is below 40%;(2) the green space distribution is obviously clumped as the size effect of the aggregation intensity is 2 km×2 km>1.5 km×1.5 km>1 km×1 km,with area aggregation intensity higher than number aggregation intensity;(3) the spatial distribution of the public green space is oriented towards the center.And the urban "green center" pattern is significant but too clumped.This paper aims at enriching the research methods of the urban public green space distribution,and providing the scientific basis for the policy-making in the planning and designing of the public green space in the research area.更多还原