Based On Gis In Grassland Eco-warning System

Grasslan ecosystem refers to a variety of herbs as the main body of the biological communities and their environment posed by terrestrial ecosystems.Grassland ecosystem is constituted in the vertical profile by three-tiers:the sub-herb layer,ground layer and the root layer whose structures are relatively simple.Also,the Leve of differentialtaion was not obvious.Grassland ecosystem,in which birds are fewer, is characterized by troglodytism Mammals and the bigherbivores which are accomplished in renning;The height of layers of vegetation are different. Plant individual is small, but the density is big. In the world ,the area of the Grassland seconds only to the forest area,about 45 million ha,accounting for about 24% of land area,mainly in the drouthy zone.Prairie disaster warning refers to monitor the situation of the natural ecollgical environment of grassland and grassland resources,forecast the level and area and grade of Prairie disaster, to achieve the critical alertness of status of grassland,To develop appropriate prevention and control measures in order to maintain the suostainable use of grassland resources and the ecological balance of grasslands in cass of the safety of grassland.This thesis discussed the role and development trend of GIS research in Inner Mongolia grassland monitoring. In this paper,the Prairie in region Bayannao'er is used to as a example, grassland science and geographic system theory as a guide. The paper surveyed and researched the ecosystem of glassland, the status of Physical Geography, collected a large number of geo-data, used flexibly as software roof garden and Collated the data on the map, Studied overall design of grassland eco-warning information system and key technologies for each module in the system.