遥感技术快速确定鄱阳湖区血吸虫病易感地带的探讨  

Studies on rapid determination of susceptible environments with schistosomiasis japonicum in Poyang Lake region by remote sensing technology

作　　者：高波 胡飞 方豫 刘跃民 吕尚标 乐兴华 高祖禄 黄兴华 林丹丹 

机构地区：[1]余干县血吸虫病防治站,江西余干县335100 [2]江西省寄生虫病防治研究所 [3]江西省遥感信息中心

出　　处：《热带病与寄生虫学》2008年第4期187-190,共4页Journal of Tropical Diseases and Parasitology

基　　金：鄱阳湖生态环境与资源研究重点实验室开放研究基金(PK2004001)

摘　　要：目的探讨钉螺孳生环境和钉螺密度与遥感指数值之间的定量关系。方法选择鄱阳湖区有螺洲滩一块,采用系统(20m×10m)和环境抽样两种方法对洲滩进行钉螺调查,同时对查螺时间段的遥感影像进行影像解析,分别提取NDVI、GVI、GEMI、PVI、MSAVI2指数,并结合螺情资料进行分析。结果不同指数值均能区别反映有螺孳生环境和无螺环境,钉螺密度的自然对数值与各指数值之间存在着正相关关系(P<0.01);并建立了钉螺密度的自然对数值(Y)与综合指数值间(X)的综合数学模型。结论遥感数值能反映钉螺数量分布,但用综合指数建立的数学模型所反应的数据与实际调查结果更为接近。Objective To study the quantitative relations between snail breeding environments and snail density with remote sensing index respectively. Methods A piece of marshlands in Poyang Lake region was selected as study pilot, where snails were surveyed by both of systematic and environmental sampling methods. Meanwhile, haage resolution of its remote sensing image was carried to obtain index of NDVI, GVI, GEMI, PVI, MSAVI2. Results It was found that the different values of index could differentiate the environment with snail breeding or without snail breeding. There exist positive correlation between natural logarithm of snail densiv/ and various index （P〈0.01）. In addition, a comprehensive mathematical model between natural logarithm of snail density and comprehensive remote sensing index was established. Conclusion The results obtained by comprehensive mathematical model are more near to reflect the actual snail distribution though various remote sensing index.

关 键 词：遥感 植被指数 钉螺 数学模型 

分 类 号：R532.21[医药卫生—内科学] R532.210.1[医药卫生—临床医学]