应用高分辨率中巴资源卫星遥感图像探测湖沼地区钉螺孳生地的初步研究  

Preliminary study on applying high resolution CBERS images to identify Oncomelania snail habitats in lake and marshland regions

作　　者：王增亮[1] 高杰[1] 陶波 姜秋林 翟敏玲 张志杰[1] 姜庆五[1] 

机构地区：[1]复旦大学公共卫生学院流行病学教研室、公共卫生安全教育部重点实验室、复旦大学公共卫生学院空间分析与建模实验室、复旦大学公共卫生学院GIS培训中心,上海200032 [2]江西省星子县血吸虫病防治站

出　　处：《中国血吸虫病防治杂志》2012年第6期640-644,F0003,共6页Chinese Journal of Schistosomiasis Control

基　　金：国家自然科学基金(81102167、81172609);高等学校全国优秀博士学位论文作者专项资金(201186);高等学校博士学科点专项科研基金(20110071120040)

摘　　要：目的探讨高分辨率中巴资源卫星02B星(CBERS-02B)遥感图像在探测湖沼地区钉螺孳生地中的初步应用。方法将CBERS-02B星HR图像与CCD图像融合形成高分辨率遥感图像,并分别应用高分辨率中巴资源卫星遥感图像和CCD图像提取江西省星子县地区的潜在钉螺孳生地。在研究区域内随机抽取2 000个验证点,应用McNemarχ2检验比较验证点在钉螺孳生地内外分布的差异。结果高分辨率中巴资源卫星遥感图像与CCD图像提取的星子县潜在钉螺孳生地面积分别为98.23 km2和94.89 km2,位于两者内的验证点数分别为255个和248个,差异无统计学意义(χ2=1 779.52,P=0.23)。结论在大尺度范围内,应用高分辨率中巴资源卫星遥感图像提取的钉螺孳生地与CCD图像提取钉螺孳生地范围和面积基本一致。Objective To explore the preliminary application of high resolution CBERS-02B images in detecting the Oncomelania snail habitats in lake and marshland regions.Methods The images with high resolutions were first fused from CBERS-02B HR and CCD images,and then the potential snail habitats in Xingzi County of Jiangxi Province were extracted from high resolution CBERS images and CCD images,respectively.A total of 2 000 validation points were randomly selected for comparing the difference of distribution of these points inside and outside of the extracted two snail habitats with the McNemar chi-square test.Results The areas of the two snail habitats extracted from high resolution and CCD images were 98.23 km2 and 94.89 km2,respectively.The numbers of validation points in the two snail habitats were 255 and 248,respectively,and no significant difference was found（=177 9.52,P = 0.23）.Conclusion At large-scale studies,the ranges and areas of the two snail habitats extracted from high resolution and CCD images are not significantly different.

关 键 词：血吸虫病 钉螺 中巴资源卫星02B星 遥感 湖沼地区 

分 类 号：R383.24[医药卫生—医学寄生虫学]