四川省生态环境动态数据库建立与应用研究

Establishment and Application of Ecological Environment Databases of Sichuan Province

为建立四川省生态环境本底数据库，实现生态环境动态监测，运用遥感（RS），地理信息系统（GIS）和全球定位系统（GPS）技术，以2004年中巴资源卫星（CBERS-02）遥感影像为信息源，2000年TM遥感影像解译的数据为基础，对2004年遥感影像进行动态变化解译，修改2000年数据库；手持GPS接收机，在野外对解译成果进行验证，更新数据库，最终建成四川省生态环境本底数据库；最后对四川省土地利用／覆被变化信息进行了分析研究，为四川省生态环境下一步研究指明了方向。

The establishment of ecological environment databases of Sichuan province to efficiently fulfil dynamic monitoring on the ecological environment has been based on techniques of RS （remote sensing）, GIS （geographic information system） and GPS （global positioning system）. Firstly, land use and land cover changes （LUCC） were interpreted according to the China-Brazil earth resource satellite CBERS-02 image of 2004 on the basis of a database interpreted from TM （thematic mapper） in 2000. Secondly, the interpreted result from CBERS- 02 was validated in the field through GPS receiver to update the database. Thus, the ecological environment databases were established. Finally, a primary analysis was conducted to point out the way for further research on the ecological environment of Sichuan province.