Design and realization of GPS and GIS integration technology in wetland study

Discusses some important problems in applying integration technology of GPS (Global Positioning System) and GIS (Geographical Information System) to wetland study. The study focuses on both dynamic data exchange of GPS and GIS technology and wetland resource investigation on current status using information integration technology of GPS and GIS. Study points´ position in subject digital maps can be displayed and tracked using GPS and GIS integration technology. Ecological environment changes can be found. The GPS study points´ position information and satellite status data can be displayed and be used to update the wetland database. GPS data communication technology, positioning data process method and data display techniques are presented in This work. A special resolving method, flow charts and the data processing method are discussed in detail. The GIS platform is Arc/Info 8.2 of ESRI. The data communication is realized by using MSComm Control. The study is undertaken on Zhalong Wetland, Qiqihaer City, Heilongjiang Province, China. The result of practice proves that the integration technology of GIS and GPS can orient changed areas accurately and reflect the current situation and historical background of wetland comprehensively. It is an efficient method in dynamic analysis of wetland protection and is helpful in trend prediction of wetland for the sustainable development of regional economy. It offers basic data for some macro adjustments and government policy.