鄱阳湖区洲滩螺情信息系统的开发与应用

Development and application of snail information system in marshlands of Poyang Lake region

目的开发鄱阳湖区洲滩螺情信息系统,实现螺情空间信息管理的数字化、图像化、即时化和动态化。方法在MicrosoftVisualBasic6中利用ESRIMapObjects2.2组件,提取鄱阳湖地区历年螺情信息,并结合地理信息系统技术,对湖区洲滩图形和螺情信息进行复合。结果实现了洲滩螺情信息的图形显示、分类、查询、螺情图绘制、图形输出和打印等功能,可以全面了解鄱阳湖区钉螺分布态势,分析比较螺情的动态变化,确定洲滩高危地带和重点防治区域,改变了人工管理螺情图帐现状。结论鄱阳湖区洲滩螺情信息系统便捷可行,有利于对鄱阳湖螺情信息资源的持续利用,为血防主管部门的科学决策和查灭螺提供及时、准确的信息支持。

Objective To develop a snail information system in marshlands of Poyang Lake region for the purpose of realizing the digital, geographical, real time and dynamic management of snail status. Methods Integrated with GIS technique, ESRI MapObjects 2.2 module in Microsoft Visual Basic 6 was applied to manage the combined snail information and geographical information in the marshlands of Poyang Lake region. Results The system was developed and it could be used to display, search and classify the information of snail distribution as well as to form and export the sketch and diagram of the snail status. It also had the utilities of analyzing and comparing the changes of snail distribution, determining high risk sites of focal transmission areas. The application of the system led to a change in manipulation of snail data. Conclusions The system has the advantages for the convenient and feasible utilization and management of snail data in marshlands of Poyang Lake region and thus provides accurate informational support for determination strategy and approach of snail control and investigation.