Chin J Schisto Control ›› 2020, Vol. 32 ›› Issue (1): 10-.

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Spatio-temporal distribution of Oncomelania hupensis snails along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal

IANG Tian-Tian1, SHI Liang1, 2△, LI Wei1, 2, ZHANG Jian-Feng1, 2, He Jian1, 2, WANG Xin-Yao1, 2, LIU Lu1, 2, FENG Yun1, 2, WANG Lin3, XIE Yi-Qing4, WANG Zhi-Jian5, ZHU Tao5, JIANG Tao5, SUN Jian-Ping6, DAI Wei6, Xu Da-Cheng6, YANG Kun1, 2*   

  1. 1 Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China; 2 Public Health Research Center, Jiangnan University, China; 3 Zhenjiang Center for Disease Control and Prevention, Jiangsu Province, China; 4 Changzhou Center for Disease Control and Prevention, Jiangsu Province, China; 5 Danyang Center for Disease Control and Prevention, Jiangsu Province, China; 6 Jintan Center for Disease Control and Prevention, Changzhou City, Jiangsu Province, China
  • Online:2020-03-03 Published:2020-03-03

京杭大运河丹阳段及丹金溧漕河沿线钉螺时空分布特征研究

蒋甜甜1,施亮1, 2△,李伟1, 2,张键锋1, 2,何健1, 2,王鑫瑶1, 2,刘璐1, 2,冯云1, 2,王琳3,谢轶青4, 王志坚5,朱涛5,江涛5,孙建平6,戴伟6,许大成6,杨坤1, 2*   

  1. 1国家卫生健康委员会寄生虫病预防与控制技术重点实验室、江苏省寄生虫与媒介控制技术重点实验室、江苏省血吸虫病防治研究所(无锡214064);2江南大学公共卫生研究中心;3江苏省镇江市疾病预防控制中心;4江苏省常州市疾病预防控制中心;5江苏省丹阳市疾病预防控制中心;6江苏省常州市金坛区疾病预防控制中心
  • 作者简介:蒋甜甜,女,硕士研究生。研究方向:血吸虫病流行病学 施亮,男,硕士,主管医师。研究方向:血吸虫病流行病学
  • 基金资助:
    江苏省医学重点人才项目(ZDRCA2016056);江苏省血地寄防应用性科研课题(X201805);江南大学公共卫生研究中心课题(JUPH201837)

Abstract: Objective To explore the spatio?temporal characteristics of Oncomelania hupensis snails along the Danyang section of the Beijing?Hangzhou Grand Canal and the Danyang?Jintan?Liyang Canal, so as to provide scientific evidence for the dynamic assessment of the risk of snail spread in this region. Methods O. hupensis snail status was collected in the plain regions with waterway networks in the study area from 2012 to 2017. The spatio?temporal variations of snail distribution were investigated along the Danyang section of the Beijing?Hangzhou Grand Canal and the Danyang?Jintan?Liyang Canal using buffer zone analysis, spatial autocorrelation, hotspot analysis and standard deviational ellipse with the geographical information system (GIS) tools. Results The number of snail habitats showed a tendency towards a rise in the study area from 2012 to 2017, and snail habitats were predominantly distributed in the 1 000 m long buffer zone of the Danyang?Jintan?Liyang Canal, notably along the Jiuqu River at the junction between the Beijing?Hangzhou Grand Canal and the Danyang?Jintan?Liyang Canal. The distribution of snail habitats appeared spatial autocorrelations in 2014, 2016 and 2017, and the hotspot areas were mainly identified at the junction between the Danyang?Jintan?Liyang Canal and the Beijing?Hangzhou Grand Canal. In addition, the overall distribution of snail habitats was located in the northeastern-southwestern part of the study aera, and gradually shifted to the southern and northern parts with the time. Conclusion The spatial distribution of O. hupensis snails is complex along the Danyang section of the Beijing?Hangzhou Grand Canal and the Danyang?Jintan?Liyang Canal, and there is a risk of snail spread from the upper reaches to the lower reaches, where snail control needs to be intensified.

Key words: Oncomelania snail, Spatio?temporal distribution, Beijing?Hangzhou Grand Canal, Danyang?Jintan?Liyang Canal, Jiangsu Province

摘要: 目的 分析京杭大运河江苏丹阳段及丹金溧漕河沿线钉螺时空分布特征,为动态评估该区域钉螺扩散风险提供科学依据。方法 收集2012-2017年研究区域内水网型血吸虫病流行区螺情数据,采用缓冲区分析、空间自相关分析、热点分析及标准差椭圆分析法,探索京杭大运河丹阳段及丹金溧漕河沿线钉螺时空变化趋势。结果 2012-2017年,研究区域内有螺环境数呈上升趋势;有螺环境主要分布于丹金溧漕河1 000 m缓冲区内,特别是京杭大运河与丹金溧漕河交汇处的老九曲河沿线。2014、2016、2017年,研究区域内钉螺分布存在空间自相关,热点区域主要为丹金溧漕河与京杭大运河交汇处;钉螺分布整体呈东北-西南方向,随着时间变化逐渐向南北方向转变。结论 京杭大运河丹阳段及丹金溧漕河沿线钉螺空间分布复杂,存在从上游向下游扩散的风险,需加强该区域的灭螺工作。

关键词: 钉螺, 时空分布, 京杭大运河, 丹金溧漕河, 江苏省

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