摘要
运用GIS技术和Fragstats4.2景观指数分析,采用绿地面积和植被覆盖度2个空间构成指标和5个常用景观指数,从总体构成、具体河段以及主城与郊区差异比较3个方面分析滨河区主干河流周边绿地的空间格局。结果表明,整体区域植被覆盖度不高。休闲服务类绿地占比较小,分布分散,连通度低。自然形态类绿地占比相对较大,集中分布,连接度低。农业生产类占比大,集中成片,连接度高;中小型河流的公园休闲服务空间体系完善,连接度较好。区域性和流域性两级河流绿地空间功能单一,连接度需提升;主城区主体类型公园和乔木林地分布较之郊区分散,连通性更好。研究结果为城市滨河区域空间格局优化提供方法借鉴,对于提升复合生态功能非常重要。
The holistic characteristics of the green space pattern in the riverfront area is very important for improving the compound ecological function.Using GIS technology and landscape index analysis by Fragstats4.2,two spatial composition indices of green spaces,e.g.,area and vegetation coverage,and five commonly used landscape indices were selected to analyze the spatial pattern of green spaces around the backbone rivers in Shanghai,from the perspectives of three aspects:overall composition,specific river segments and comparison of differences between downtown and suburban areas.The results showed that the vegetation coverage of the study area was not high.Leisure service style of green space occupied a relatively small proportion,which had scattered distribution and low connectivity.The proportions of nature style of green spaces were relatively large with concentrated distribution and low connectivity.Agricultural production service style accounted for a large proportion,concentrated into large green patches with high connectivity.The leisure service space system of parks along small and medium-sized rivers had complete spatial system and good connectivity.The riverfront green spaces at regional and basin-level had relatively single function,and the connectivity degree should be improved.The main types of parks and woodlands in the downtown area were more scattered distribution than those in the suburbs,and with better connectivity degree.The study can provide a reference for the method of the optimization of urban riverfront spatial pattern.
作者
姜允芳
李笑琳
黄静
石铁矛
JIANG Yun-fang;LI Xiao-lin;HUANG Jing;SHI Tie-mao(School of Urban and Regional Science,East China Normal University,Shanghai 200241,China;The Center for Modern Chinese City Studies,East China Normal University,Shanghai 200241,China;College of Architecture and Planning,Shenyang Jianzhu University,Shenyang 110000,Liaoning,China)
出处
《西北林学院学报》
CSCD
北大核心
2023年第1期247-256,共10页
Journal of Northwest Forestry University
基金
国家自然科学基金(51878279,51878418)。
关键词
滨河空间
绿地
蓝绿基础设施
景观格局指数
上海市
riverfront space
green space
blue-green infrastructure
landscape pattern index
Shanghai
