20056(173)ACADEMICFORUMNO.6,2005(CumulativelyNO.173)(,530001)[],,,,GIS,,,[];;[]F590.7[]A[]1004-4434(2005)06-0075-03,,,,;,,,,;,,,,,2001[2001]92001,2001,,2004103,,,,,,:[]2005-04-20[](:03DJY003)[](1963),,,,,,:57©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),,,,,,,,,,,,,,,,,,,,50,20,,,2090,12512,,,,,,,,,,,20033.3,,,,,,,,,,2004,,(),,,,,,,,,,67©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(1),,,,,,,(2),,,,,,(3),,(4),,:(5),,,,,,,,:(6),,,,,:,,,:(1)(2),,,,,(3)GIS,,,,,,,,,,,,[][1].[J].,1999,(2).[2].[J].,2003,(2).[3].[J].,2004,(1).[:]77©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.