Advance of GIS Technology and Application in Agriculture, Forestry as Well as the Resources and Environment of Water and Earth

The visual sense of map integrated with the analytical function of geographical space and database through GIS,provides an intellectual means of analyzing,synthesizing and inquiring the space data.With the development of the computer technology,GIS technology is growing rapidly,which application is also extending and deepening.This paper will review as comprehensive as possible the late advance of its technology and its application in agriculture,forestry and the resources of water and earth.