200917SCIENCE&TECHNOLOGYINFORMATIONGPS、,GIS。、、、、,。GISGPS、RS,GISCAD,GISGIS。GISGIS,、、、、、。GIS,GIS。GPSGIS。1.GPSGISGPSGIS:1.1GIS,GIS,GIS,。,。1.2,,,。、。,,,GIS,。,,,,,。,。2.GPSGISGPSGIS:1)GPSGIS。2)GPSGIS,。,GPSGIS,。GPSGIS。2.1GISGPS。(GIS),,。,GPS,。GPS,、。2.2GIS,,,,,。GPS,,,,,,,,。GPSRTK,10~20KM。,10~20km,,。RTK,,,0.1M。2.3,,。GPS。GPS。,GPS。,。,20m,,GPS,。,,。。,1:51:10,,GPS。,,,,。1:1、,1.0m,,。20km,,30km,,,。,GPS,。2.4,GPS。,,。,,,GPS。,20km,,,,20km,。2.5GPSGISGPS,,GPSGIS,GIS。3.(GPS),、、、、、,GIS。[:]GPSGIS12(1.450000;2.450000)【】GPSGIS。GIS,、。GPSGIS。【】GPS;GIS;;;○○21