基于GS徐州生态园林城市绿地时态特征分析摘要以徐州市泉山区、云龙区、鼓楼区、铜山区、金山桥经济开发区为研究区域，以“2015年徐州市城市绿地系统现状图”和“2015年徐州市城市绿地系统现状图”为数据源，通过ArcGIS10.2软件对研究区进行几何校正、新建研究区绿地矢量图、提取绿地信息、生成绿地属性数据库等处理后，利用Excl软件强大的计算和统计功能算出相应绿地时态特征评价指标。选用绿地面积、斑块数、斑块平均面积、斑块密度、斑块分维数、人均绿地面积、绿地覆盖率等指标对研究徐州市中心绿地时态特征变化，并分析变化原因，为城市绿地建设提出建议。研究结果表明：2020年相比于2015年绿地面积有明显增加，但其绿地覆盖率仍然没有达到国家园林城市规定的标准值(35%)：2020年城市绿地斑块数显著增加，但绿地破碎程度也随之增加，导致城市绿地生态功能减弱：2020年斑块分维数有所增加，但数值仍然偏小，不利于城市绿地生态系统的多样性和可持续发展：各行政区绿地面积都显著增加，但绿地分布不均衡，云龙区作为新城区，绿地面积和结构变化最大。本文针对徐州城市绿地时态特征中存在的问题提出了绿地优化的建议，为创建徐州主城区更加合适的城市绿地分布和结构，创建可持续发展的城市绿地与自然生态环境提供科学参考和理论依据。该论文有图16幅，表8个，参考文献52篇。关键词：GS城市绿地徐州市绿地变化Based on the GIS Xuzhou Eco-garden Urban GreenSpace Temporal Characteristics AnalysisAbstractThe research area is based on Quanshan Yunlong,Gulou Tongshan andJinshangiao economic development zone of Xuzhou,based on the "Xuzhou UrbanGreen System Map"in 2015 and 2020.Using ArcGIS 10.2 for geometric correction,establishment of the green space vector map,extraction of green space information,the formation of the green space property database,using the Excel calculate theindex of the green space temporal characteristics.The green space index used in thisarticle are Green Area,Patch Number,Average Patch Area,Patch Density,PatchFractal Dimension,Per Capita Green Area,Green Coverage,then analyze the reasonsand make suggestions.The results of the study show that:The green space in 2020 islarger than that of 2015,but greenfield coverage is lower than the national park citystandard (35%);The number of green patches in 2020 is much higher than in 2015,but the extent of the fragmentation has also increased,so the ecological function ofurban green space has been reduced;The number of plaques in 2020 is greater thanthat of 2015,but it's still small,it is bad for the diversity and sustainable developmentof urban green space ecosystem.The area of green space in each region has increasedsignificantly,but the green space is unbalanced,the Yunlong is a new city,so its greenspace and structural change more.This paper puts forward some suggestions on theproblems of Xuzhou green space,provide scientific reference and theoretical basis forcreating a more appropriate urban green space distribution and structure,creatingsustainable urban green space and natural ecological environment.Key Words:GIS Urban Green Space Xuzhou Green Space Changes目录摘要AbstractIV目录图清单表清单VI变量注释表1绪论1.1研究现状与研究进展1.2研究意义22研究区概况53研究方法3.1数据来源-3.2数据处理64结果与分析4.1城市绿地面积-64.2城市绿地分布4.3城市绿地位置5结论与讨论235.1结论235.2存在的问题2453建议参考文献致谢29