Chin J Schisto Control ›› 2016, Vol. 28 ›› Issue (5): 507-.

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Comparison study on sampling methods of Oncomelania hupensis snail survey in marshland schistosomiasis epidemic areas in China

ZHAO An1|2|ZHANG Wen-xin1|2*|YAO Zhong3|MA Yu-kuan2|LIU Qing2|DUAN Hou-lang2|SHANG Yi-di2   

  1. 1 Key Laboratory of Poyang Lake Wetland and Watershed Research|Ministry of Education|Jiangxi Normal University|Nan? chang 330022|China;2 School of Geography and Environmental Sciences|Jiangxi Normal University|China;3 Jiangxi Acade? my of Sciences|China
  • Online:2016-10-25 Published:2016-10-26
  • Contact: ZHANG Wen?xin



  1. 1江西师范大学鄱阳湖湿地与流域研究教育部重点实验室(南昌330022);2江西师范大学地理与环境学院;3江西省科学院
  • 通讯作者: 张文馨
  • 作者简介:赵安|男|博士|教授。研究方向:GIS/RS、公共卫生、生态学等
  • 基金资助:
    国家自然科学基金项目(81260449);江西省教育厅2012 年度科技项目(CJJ12185);江西省青年科学基金项目 (20132BAB214022)。

Abstract: Objective To optimize and simplify the survey method of Oncomelania hupensis snail in marshland endemic re? gion of schistosomiasis and increase the precision,efficiency and economy of the snail survey. Methods A quadrate experimen? tal field was selected as the subject of 50 m×50 m size in Chayegang marshland near Henghu farm in the Poyang Lake region and a whole?covered method was adopted to survey the snails. The simple random sampling,systematic sampling and stratified ran? dom sampling methods were applied to calculate the minimum sample size,relative sampling error and absolute sampling error. Results The minimum sample sizes of the simple random sampling,systematic sampling and stratified random sampling meth? ods were 300,300 and 225,respectively. The relative sampling errors of three methods were all less than 15%. The absolute sampling errors were 0.221 7,0.302 4 and 0.047 8,respectively. Conclusion The spatial stratified sampling with altitude as the stratum variable is an efficient approach of lower cost and higher precision for the snail survey.

Key words: Oncomelania hupensis;Schistosomiasis;Marshland endemic region;Sampling method;Spatial stratified sam? pling;Comparison study

摘要: 目的优化、简化湖沼型血吸虫病流行区钉螺调查方法,提高钉螺调查精度、效率和经济性。方法基于鄱阳 湖区域恒湖农场茶叶港草洲1块50 m×50 m试验样地,全覆盖查螺后再分别采用简单随机抽样、系统抽样与分层抽样等3 种方法进行钉螺调查,计算最小需求样本量、抽样相对误差与抽样绝对误差。结果本研究中简单随机抽样、系统抽样 与空间分层抽样等3种方法的最小需求样本量分别为300、300和225,抽样相对误差均小于15%,抽样绝对误差分别为 0.221 7,0.302 4和0.047 8。结论用高程作为分层依据进行空间分层抽样是钉螺实际调查中节省成本、提高精度的有 效途径。

关键词: 钉螺;血吸虫病;湖沼型流行区;抽样方法;空间分层抽样;对比研究

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