Research And Detect On Geological Disasters To The Upriver Of Jin Sha Jiang By Remote Sensing And GIS

The geological disaster is one of the most serious environment problem in the world nowadays.The geological disaster includ collapses,slips,mudslide etc.that have something to do with geological function and endanger or will endanger people's life caused by the natural factor or perhaps human activities.Our country's territory is broad, densely populated, the weather much changes and geological condition is very complicated. It's one of nations which have the most heavy geological disasters in the world.In the paper,the writer analysed the geografical disaster's growth and distributing of the upriver of Jin Sha Jiang, espasially collapses,slips,mudslides.First of all , various remote sensing images are interpreted consulting the information collected previously.In the process,we insist the principia ,from the whole to the part.And consequently we get the vector image in different scale of the workaround, including collapses,slips,mudslide etc. geological disasters'vector image and faults image.Then,the result from the last step is validated, offering a practical data. After that,the data from the upper step is contrasted,and the last result is made out.In the last,many relations are analysed from various aspects.What relation between the geological disasters and the gradient? What relation between the geological disasters and the stratums? What relation between the geological disasters and lithology? What relation between the geological disasters and rainfall,earthquake etc.And a grade image where the geological disaster is more gently .