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澳大利亚疫蝗委员会 (APLC)负责澳大利亚内陆四个州 2 0 0 0 0 0 0km2 上严重威胁农业生产的蝗虫种群的监测与防治。应用一个基于GIS的“决策支持系统 (DSS)”采集、处理、分析并显示多种空间数据 ,以预测蝗虫种群的发育并辅助实施防治。所做预测有助于对蝗群集聚区做出早期定位并采取有效的预防措施。该DSS的数据采集包括田间调查资料的无线直传和网上逐日天气资料的下载 ,蝗群的分布和年龄结构信息通过定期GPS定位调查获得 ,并连同农场主和地方农技推广人员的虫情报告通过高频调制直接传至APLC总部的GIS服务器上 ;当前的调查资料用于估测蝗群的分布并作为空间发育模型的输入数据以确定实施防治的最适发育阶段的始期 ;降水分布和风温场资料从网上自动下载并与栖境条件和蝗群分布信息集成。同时 ,澳大利亚联邦气象局的在线天气资料及产品也从网上定时存取用于决策支持。
The Australian Plague Commission (APLC) is responsible for the monitoring and control of locust populations that pose a serious threat to agricultural production in the four outlying regions of Australia, 2000-20000 km2. A GIS-based “Decision Support System (DSS)” is used to collect, process, analyze and display a variety of spatial data to predict the development of locust populations and assist in the implementation of control. The predictions have helped to position locust swarms early and take effective precautions. Data collection for the DSS included wireless direct transmission of field survey data and downloading of online daily weather data. The distribution of locust populations and age structure information was obtained through regular GPS positioning surveys and, together with reports of pest situations by farmers and local agricultural extension workers Transmitted directly to the GIS server at APLC headquarters through high-frequency modulation; current survey data used to estimate the distribution of swarms as input to the spatial development model to determine the onset of the optimal stage of development for control; precipitation distribution and wind temperature Field data is automatically downloaded from the web and integrated with habitat conditions and locust group distribution information. In the meantime, the Australian Federal Weather Service’s online weather data and products are also accessed online for decision support.