Land Use Remote Sensing Dynamic Monitoring Technology And Applied Research

Land utilization dynamic monitoring is to come true at present have forceful resource situation means in hand all- round , timely. The tradition land utilization dynamic monitoring mission is that land utilization is completed from the manpower coming investigation, but on inquiry, manpower land utilization wastes time and energy, blows the expense at, poor efficiency . Nowadays, with the remote sense and geographic information system technology being on the rise, with gradually, mature , fully utilizing, these high technology achievement, makes use of status and covers to monitoring land resources to become possibility and conduct institute common view.This dissertation discusses the techniques and methods regarding monitoring land Use dynamic county level based on change detection technique of remote sensing data Update and analysis based on software of ERDAS IMAGINE8.5 and MAPGIS6.5. The above methods and techniques are applied to the waters of DIAN CHI, land use changes from 2000 to 2004.On the extracted information aspect that transform the data fuse being in progress to ETM data on 2000 year first with wave, the result shifting the queen portrait's gives analytical valuation to wave. Be to adopt to blend classification combining with closing visual be sentenced to read experience in the field of classification method. First, be in progress must super classification , judge that the initial category affirms an attribute to two portraits .second, The classification attribute mistake of the be sentenced to read queen is superintended classifying gauge becomes the classification form board document applying to supervision classification by that spectrum clustering handles conversion, and then carry out supervision classification again. Two time images, the portrait classification accuracy is that 88% in 2000, is 82.5% in 2004 , reaches the classed standard equally each other respectively. During the 4 years, land utilization quantity structure change analyses , land utilization revolution of type analysis and the land utilization driving force analyses the area being in progress according to classification achievement studying. Come result to be area land utilization/ land's turn to be covered by change indicating 4 years very big: 10.85%'s speed has increased construction with field area with every year , has occupied large amount of cultivated land; Corresponding cultivated land and a great quantity notmaking use of land area fall off , the decreasing rate is 46.23% and 63.8% respectively; Though water area and forest grassplot area having, the atrophy, but change is not big. Analysis reaches the cause affecting inherent drive of land utilization change main part thereby being: The fleetness being industrialized and urbanizing develops, high speed increases population and The urban planning has the guiding effect to land utilization.