Analysis Of Land Use Change In Wendeng District Of Weihai City Based On Remote Sensing And GIS

Wendeng District of Weihai City is located in the eastern part of Shandong Peninsula.Because of convenient marine transportation and abundant resources such as ocean and tourism,it has developed rapidly in recent years.At the same time of rapid economic development,land use has undergone rapid changes.By analyzing the spatial distribution of land use in Wendeng District,we can get a clearer understanding of the land resource distribution in the study area,Not only can it provide basic research data for land resource planning and management,but also has important significance for promoting urbanization and economic development.Remote sensing technology is usually used in land use change research.Because of its rich spectral information,high timeliness,and comprehensive information collection,which has been widely used in land use change investigations.Although remote sensing technology can greatly improve work efficiency,there are still certain errors in the actual investigation.In order to more accurately analyze the land use change in Wendeng District,the article uses remote sensing and GIS technology,based on high-resolution remote sensing images,using human-computer interaction to obtain land type utilization information in Wendeng District of Weihai City.Research land use change in the region from 2010 to 2018.The main contents are as follows:(1)Based on Google Remote Sensing Image with a resolution of 0.5 meters in Wendeng District of Weihai City in 2010 and 2018.According to the land use classification standards,the land use types are divided into eight categories:cultivated land,garden,woodland,grass,urban and rural residential and mining land,transportation land,water area and water conservancy facilities land,and other land.Using the supervised classification method,based on the eight land types,establishing interpreting signs and extracting image information.Using ArcGIS software in order to manually modify and adjust the earth polygon,currenting land use distribution map of Wendeng District and schematic diagram of land use change in Wendeng District in the past 8 years.(2)Based on various analysis methods,the spatial and temporal changes of land use in Wendeng District of Weihai City were analyzed.Analyze the land use change in Wendeng District from four aspects:land use change range,land use dynamic degree,land use degree,and land use status.Combining vector data,make a more comprehensive and in-depth analysis from the aspects of land use change quantity,land use change increase and decrease range,land reclamation degree,land development stage,land use type flow change.And summarized the characteristics and development laws of land use types in Wendeng District in the past 8 years,found that land use in Wendeng District has been in development.(3)Combined with the statistical yearbook and related statistical data of Wendeng District of Weihai City,a driving force analysis was conducted on the land use situation in the past 8 years.Through the analysis of the five aspects,which are including natural environmental factors,economic factors,population factors,transportation factors,and policy factors,the driving factors,identify the driving factors that affect the obvious changes in land use types in Wendeng District.The results show that the land use change in Wendeng District is greatly affected by economic,policy,and transportation factors,which directly affects the change in construction land area and indirectly changes the land use structure between agricultural land.(4)Summarize the land use changes in Wendeng District.It has elaborated the problems encountered in the management of land resources in the development of urbanization in the past 8 years and proposed corresponding solutions and suggestions,rationally planned land resources,and alleviated the contradiction between agricultural land and construction land in the region.Overall,research and analysis of land use changes in Wendeng District,that can intuitively understand the land development in Wendeng District in the past 8 years.Using the technical means of combining remote sensing and GIS,and adopting the method of human-computer interaction to improve the accuracy of the experiment.In the experimental analysis,it was found that the changes between the land use types and structures were influenced and restricted each other.in the study area.