Remote Sensing Dynamic Monitoring Of Land Use And Cover Change In Hannan District

Land resources are a very important resource in the natural environment,and land use reflects the relationship between people and land.With the continuous growth of population and social industrialization and the continuous advance of urbanization,the rational use of land resources is more and more important,and reasonable and healthy land use can serve people's life.Wuhan,as the provincial capital of Hubei city is located in the Yangtze River Basin.Hannan District,as the economic development zone of Wuhan City,studies the temporal and spatial characteristics of land use / cover in Hannan District,and explores and rationally sets out relevant land management policies for the rational planning and management of land in Hannan District,Sustainable use is of great significance.With the help of remote sensing and GIS technology,this paper study the land use change and land cover and its evolution law of the research area(Hannan area).and the main research results and contents are as follows:(1)Combining the Landsat terrestrial satellite data at different time in the Hannan area,the land use status of the study area was classified by ENVI5.1 software,and the land use status of the land was analyzed.(2)Based on the results of land classification,combined with the statistical analysis and spatial analysis function of ArcGIS,the land transfer matrix and area of each land type are extracted.In 20 years,the overall trend of land use change in the study area is as follows: the cultivated land area is decreasing,and the area of forest land is decreasing first and then increasing,while the water area increases first and then decreases,and the area of construction land is increasing.(3)Based on the study of the three-stage land use transfer matrix in Hannan District,the actual situation of land use change in Hannan area was analyzed from the above.This paper studies the rate of change of various types of landforms in the Hannan area from the attitude of land use change.The fastest change in construction land is 17.848%,followed by unused land,which is 4.811%.(4)The factors of land use change were analyzed qualitatively and quantitatively.The factor analysis module of SPSS software was used to analyze the socioeconomic statistics of Hannan District from 2004 to 2013.The main factors affecting the land use were agricultural,GDP and policy.