基于sDNA的路网演变及其对景观格局的影响  

Road Network Evolution Based on sDNA and Its Influence on Landscape Pattern

作　　者：张丰凡 吴昊 刘明波[1] ZHANG Fengfan;WU Hao;LIU Mingbo(Northwest Engineering Corporation Limited,Power China Group,Xi’an Key Laboratory of Clean Energy Digital Technology,Xi’an 710065,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安市清洁能源数字化技术重点实验室,陕西西安710065

出　　处：《地理空间信息》2024年第9期67-71,共5页Geospatial Information

基　　金：中国电建集团西北勘测设计研究院有限公司科技资助项目(XBY-ZDKJ-2020-08)。

摘　　要：为探讨路网空间结构对景观格局的影响,以招远市为例,获取2009—2018年路网数据和土地利用数据,利用sDNA模型和路网密度计算方法,计算道路接近度和路网密度,作为道路网络结构评价指标;选取PD、ED、LPI、LSI、AI、SHDI等指数构建景观格局评价体系,从而分析城市道路网络空间结构对景观格局的影响。结果表明,2009—2018年招远市道路接近度和路网密度自中心向周围呈递减态势;研究区景观呈多样性、复杂性、破碎化发展态势,道路接近度与景观格局指数的相关性更高,因此在表征景观格局变化时,道路接近度比路网密度更加准确。In order to explore the spatial structure influence of road network on the landscape pattern,taking Zhaoyuan City as an example,based on the road network data and land-use data from 2009 to 2018,we used sDNA model and the road network density calculation method to calculate the road proximity and road network density,which as the evaluation indexes of the road network structure.We selected PD,ED,LPI,LSI,AI,SHDI and other indices to construct the landscape pattern evaluation system,so as to analyze the influence of urban road network spatial structure on landscape pattern.The result showed that the road proximity and road network density in Zhaoyuan City decreased from the center to the surrounding from 2009 to 2018.Compared with the road network density,the road proximity has a higher correlation with the landscape pattern indices,so it can be more accurate when representing the changes of landscape pattern.

关 键 词：道路接近度 路网密度 景观格局 破碎化 相关性 

分 类 号：TU983[建筑科学—城市规划与设计]