Application Of 3S Technology In The Dynamic Monitoring Of Forest Resources

In this article 3S(GIS:Geographical Information System、GPS:Global Positioning System and RS:Remote Sensing) technology are used for the dynamic monitoring of forest resources, access the changed information of forest resources, and study the process of updating sub-compartment data.3S technology are used for the dynamic monitoring of forest resources, It can full use their technical characteristics, provide technical support efficiently and resource integration platform for dynamic monitoring of forest resources by efficiently. Among them, RS provide the new image information, GPS provide the location information, GIS provide the technical tools and platforms, they closely provide the strong technical support and scientific solutions for dynamic monitoring of forest resources. Remote sensing image processing is the primary task and the important technical aspects for dynamic monitoring of forest resources to carry out in sub-compartment data, it directly affect the quality and accuracy of follow-up work.In this study, remote sensing image processing include:geometric correction and image fusion.Analysis and processing the same area images of at different phases was acted on spatial information detecting changes in forest resources, identify the changes of sub compartment by changes on remote sensing image, the changed Information was extracted in sub-compartment depend on the interpretation signs and practical experience. GIS spatial analysis of mathematical models was built for dynamic monitoring of forest resources. Geoprocessing workflows and scripts graphical structure were brought about by modelbuilder. Accordingly simplifyed complex geoprocessing and standardized data processing.Through processing the images, detecting the spatial variation of forest resource information, visual interpretation, establishing the model of sub-compartment updating, to achieve updating sub-compartment data of dynamic monitoring of forest resources.Combined with 3S technology and dynamic monitoring of forest resources, develop the 3s technology and methodology for serving to dynamic monitoring of forest resources directly; forme the system of combined with situation data of forest resources and 3s monitoring technology, thus analyze and evaluate of forest resources, provide the best technical support for improving the management of forest resources, promote the forestry digitizing, forestry information and wisdom.