江西东江源保护区生态环境监测数据库的构建与应用

The Application and Construction of Eco-Environment Monitoring Database on the Dongjiang Reserves,Jiangxi Province

地处江西省东南边陲武夷山南缘的东江源保护区,是珠江的第三大支流-东江的发源地,其生态环境状况不仅影响江西的生态环境质量,更直接关系到粤港地区饮用水安全,关系到区域生态、经济社会的发展。阐述了东江源保护区生态环境监测数据库的构建与应用。该数据库由矢量、栅格和文本等数据类型构成,以20世纪80年代中期的数据为基准数据,构成本底数据库;然后在地理信息系统软件ARCGIS的支持下,以遥感影像数据解译获取的实时数据,配以同期的统计数据、实地观察数据为动态数据源,经过图形化处理等加工程序,与一定的空间(图形)数据配准,组成东江源保护区的生态环境数据库。最后在本底数据库的支撑下,通过ARCGIS空间分析模块的处理,与不同时期的数据进行空间运算,获得该区生态环境的实时状况,从而实现生态环境监测。实际应用中,通过20世纪90年代和21世纪初数据的检验、验证,证明是有效的,可以进行动态更新和生态环境的实时评价,有力地支撑了区域生态环境的监测,为区域生态建设提供科学依据。

Is located in the South-Eastern border of Wuyi Mountain in Jiangxi province in the South margin,the Dongjiang reserves is the third largest tributary of Pearl River-the birthplace of the Dongjiang River,its ecological and environmental conditions not only affect the quality of ecological environment in Jiangxi province, more directly related to drinking water safety of Guangdong and Hong kong region, and ecological, economic and social development of the region. This paper describes database construction and application of the Dongjiang River ecological environment monitoring. The database by vector, and Grill grid and text, data type constitute, above century 80 generation medium - term of data for benchmark data, constitute this end of database,and in support by the geography information system software ARCGIS, to gets real-time data translated by remote sensing images data, equipped with over of statistics data, and field observation data for dynamic data source, after graphics of handling, processing program, and must of space （graphics） data equipped with must,consists of Dongjiang reserves of ecological environment database. Finally, to support by the database and ARCGIS spatial analysis module,space operations and data from different periods,access to real-time status of the ecological environment in the area, in order to achieve ecological and environmental monitoring. In practical applications,through the 90 s of the last century and early testing, validation of data has proven to be effective,you can perform dynamic updates and real-time evaluation of ecological environment, strong support for regional eco-environmental monitoring, ecological construction to provide a scientific basis for the region.