遥感与GIS在蝗虫生境研究中的应用进展

蝗虫生境是蝗虫赖以生活、生存的环境。利用遥感技术获取与蝗虫密切相关的各种生境因子，并结合GIS技术研究和阐明蝗虫的生境因子对东亚飞蝗的产卵、孵化、成虫、迁飞等生育周期的影响机理，是实现对蝗虫监测、预测预警的基础。文章首先分析了各种蝗虫生境因子对蝗虫发生的影响机理，认为这些生境因子对蝗灾发生的影响不是孤立地起作用的，仅靠单个生境因子进行蝗灾的预测是不全面的，而遥感和GIS技术方便的获取、管理和分析多种生境因子数据，在大尺度蝗灾发生监测和预警中起到不可替代的作用。通过对遥感与GIS在蝗虫的不同发育阶段（蝗卵发育阶段、蝗蝻发育阶段和成虫阶段）的应用及其进展的分析，认为对蝗虫不同生育阶段的遥感监测需采用不同的参数和技术才能达到更好的效果，最后提出了遥感与GIS在蝗虫生境监测方面的未来发展方向。

Progress in application of remote sensing and GIS to the study of locust habitats

Locust habitats are the living environment on which locusts depend. The base and premise for locust monitoring and prediction at a large scale is to retrieve the habitats factors using remote sensing techniques, and then to research and clarify the mechanism of locust habitats impact on locust spawning, incubation, adult, move fly using GIS techniques. The paper analysis the impact mechanism of each habitats factor to locust occurrence, and concludes that the research is not comprehensive if only single factor was considered, because the impact induced by different habitats is not isolate for locust disaster. Remote sensing and GIS techniques play an irreplaceable role in acquiring and analysis habitats factors data. Through the analysis of application and progress by remote sensing and GIS in the different developmental stages of the locust （the developmental stage of the locust eggs, hoppers stage and adult stage）, the paper concluded that people should use different parameters and technology at different growth stages in order to achieve better results. Finally, a number of suggestions were made for remote sensing and GIS application in locust habitats monitoring in the future researches.