基于GIS的焦作市土地利用类型及景观格局演变分析

Analysis of Land Use Types and Landscape Pattern Evolution in Jiao⁃zuo City Based on GIS

对土地利用与土地覆盖变化的研究探讨可以有效应对城市生态建设,因此,针对城市用地进行分析研究对城市规划至关重要。基于此,本研究选取焦作市2011—2021年5个研究时期的Landsat遥感影像数据,对用地类型进行分类,同时计算景观格局指数。结果表明:①2011—2021年焦作市域内的主要用地类型为农田;②2011—2021年焦作市的农田是最优势景观类型,建设用地和农田的景观破碎度最高;③2011—2021年焦作市蔓延度指数整体有所升高。

The study of land use and land cover change can effectively cope with urban ecological con⁃struction,so the analysis and study of urban land use is crucial for urban planning.Based on this re⁃search objective,this paper selects the landsat remote sensing image data of five research periods from 2011 to 2021 in Jiaozuo City,classifies the land use types,and calculates the landscape pattern index.The results show that:①The main land types in Jiaozuo City from 2011 to 2021 are farmland;②Farm⁃land in Jiaozuo City from 2011 to 2021 is the most advantageous landscape type,and the landscape frag⁃mentation degree of construction land and farmland is the highest;③From 2011 to 2021,the overall spread index of Jiaozuo Market has increased.