城市建筑2025，Vol.22Issue(11)：201-205,5.DOI:10.19892/j.cnki.csjz.2025.11.44
基于景观格局指数的空间尺度效应分析
Analysis on Spatial Scale Effects Based on Landscape Pattern Index:A Case of Tianjin City
摘要
Abstract
This paper takes Tianjin as the research area,uses ArcGIS and Fragstats platforms to calculate the response law of raster data at different granularities to granularity changes,and innovatively explores the impact of different land use classifications on granularity selection,providing new ideas for the study on landscape scale effects and land classification.The results indicate that:①at the type level,strip land use types are highly sensitive to changes in grain size,with roads and strip water bodies showing the most drastic changes at a grain size of 15～30 m.②At the landscape level,the subdivision of water types has a significant impact on the granularity effects of Shannon diversity index,Shannon evenness index,and sprawl index,and has a significant impact on the first scale domain of maximum patch area index,patch size variation coefficient,fragmentation,and separation index.③ Most landscape pattern indices have significant granularity effects at both the type and landscape level,and the selection of landscape scale is influenced by both land use classification and intrinsic scale.关键词
尺度效应/粒度/景观格局指数/第一尺度Key words
scale effect/granularity/landscape pattern index/the first scale分类
土木建筑引用本文复制引用
李程蓉,刘艳,纪芊羽..基于景观格局指数的空间尺度效应分析[J].城市建筑,2025,22(11):201-205,5.基金项目
湖南省教育厅科学研究项目(22B0238) （22B0238）
湖南省哲学社会科学基金项目(22YBA114) （22YBA114）
