Chines Journal of Vector Biology and Control ›› 2013, Vol. 24 ›› Issue (1): 43-46.

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Remote sensing of land coverage and investigation of plague risk among small mammals in Beijing, China

DOU Xiang-feng1, Aziguli·iapa2, LI Yang-hua1, GUAN Zeng-zhi1, WANG Xiao-mei1, LV Yan-ning1, TIAN Li-li1, LI Xu1, ZHANG Xiu-chun1, SUN Yu-lan1, LI Xin-yu1, WANG Quan-yi1   

  1. 1. Beijing Center for Disease Control and Prevention, Beijing 100013, China;
    2. Xinjiang Agency for Health Inspection and Supervision
  • Received:2012-08-16 Online:2013-02-20 Published:2013-02-20

北京市土地覆盖遥感和鼠疫鼠情调查

窦相峰1, 阿孜古丽·加帕2, 李阳桦1, 关增智1, 王小梅1, 吕燕宁1, 田丽丽1, 李旭1, 张秀春1, 孙玉兰1, 黎新宇1, 王全意1   

  1. 1. 北京市疾病预防控制中心传染病地方病控制所,北京100013;
    2. 新疆维吾尔自治区卫生厅卫生监督所
  • 通讯作者: 王全意,Email:bjcdcxm@126.com

Abstract:

Objective To map the land coverage by remote sensing, and to investigate the relationship between land coverage and the species diversity and density of small mammals in Beijing. Methods The 2009 land coverage for Beijing was provided by the MODIS Land Cover Type product (MCD12Q1) from NASA. Small beasts were captured using the trap-at-night method during 2009-2011 for species identification and density calculation. Results According to plant functional type (PFT) scheme, the proportion of urban and construction land was 12.19%, and the proportion of cropland was 39.24%. Natural vegetation accounted for 48.27%, of which 31.28% was covered by broadleaf forests, 10.91% by shrubs, and 3.68% by coniferous forests. The area of grass was relatively small, making up only 2.40% of the total area. Eight hundred and eighty one small mammals belonging to 10 species were captured with trap-at-night method. Of which 871 (98.86%) belonged to nine species of rodents and 10 belonged to one species of insectivores. The species compositions were statistically different in three different habitats including broadleaf forest, shrub, and cropland. The dominant rodents in broadleaf forest and cropland were Niviventer confucianus and Apodemus peninsulae, whereas N. confucianus and Rattus norvegicus were dominant in shrub. Conclusion The major hosts of plague confirmed in China could not adapt to the vegetation landscape with high proportion of trees and shrubs and low proportion of grasses in Beijing. Although the dominant rodents could be infected by Yersinia pestis, there is a small chance of natural foci of plague emerging in Beijing.

Key words: Remote sensing, Global positioning system, Plague, Host animals

摘要:

目的 了解北京市土地覆盖分类及分布,并分析土地覆盖类型与北京市鼠种和鼠密度的关系。方法 使用美国国家航空航天局(NASA)2009年中分辨率成像光谱仪(MODIS)陆地标准产品(MCD12Q1)提取北京市土地覆盖类型和比例,并在2009-2011年用夹夜法捕捉小型兽类鉴定种属和计算密度。结果 按照植物功能型分类方案,北京市城镇及建设用地占总面积的12.19%,农作物占39.24%;自然植被占48.27%,其中阔叶林比例最大,占总面积的31.28%,其次是灌木丛和针叶林,分别占10.91%和3.68%,草地面积较小,仅占总面积的2.40%;阔叶林、灌木丛和农作物生境中夹夜法捕获小型兽类10种881只,其中啮齿目动物9种共871只,占捕获总数的98.86%;食虫目1种10只;3种不同生境鼠种分布差异均有统计学意义,阔叶林和农作物中北社鼠和大林姬鼠为优势鼠种,灌木丛中北社鼠和褐家鼠为优势鼠种。结论 北京市植被类型不适合我国已证实的鼠疫主要宿主生存,尽管优势鼠种北社鼠、大林姬鼠、褐家鼠和黑线姬鼠等均是鼠疫可染疫动物,但出现鼠疫自然疫源地的可能性很小。

关键词: 遥感, 全球定位系统, 鼠疫, 宿主动物

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