景观指数化视角下的榆林古城文化景观特征解析及格局修补

Character Analysis and Pattern Repair of Cultural Landscape in Yulin Ancient Town From Landscape Indexation Viewpoint

在全球化背景下,城市发展普遍面临文化失语与文化迷失的双重困境。城市文化景观作为反映城市特色并有效提高城市辨识度的核心要素,必须予以高度关注。文章以榆林古城为研究对象,从景观指数化视角出发,参考城市建设用地分类标准并结合城市文化景观的土地利用形态,建立城市文化景观的土地利用分类体系。在此基础上,依托GIS及FRAGSTAGS平台,选择景观破碎度指数、蔓延度指数、连通度指数、最大斑块指数、散布与并列指数等解析榆林古城文化景观“域面—廊道—斑块”的系统格局特征,着重从分区优化、廊道织补与斑块复兴3个层面提出城市文化景观格局修补策略。

Cities are losing cultural identities in the course of globalization,and cultural landscape shall be highlighted in that it reflects city character and improve urban image.Viewing Yulin ancient city from landscape indexation angle,the paper sets up a cultural landscape land use categorization system with reference to urban construction land use categorization standard.With GIS and FRAGSTAGS platforms,the paper analyzes the“surface-corridor-plaque”pattern character of Yulin ancient city cultural landscape based on analysis of landscape indices such as fragmentation,extension,connection,largest plaque,dispersion,and juxtaposition etc.It proposes cultural landscape repair strategies from three aspects:zoning optimization,corridor weaving and plaque rejuvenation.