Research on spatiotemporal variation of snails and its precision control regionalization in Jianghan Plain
CUI Ying1,2， QIU Juan1， XU Xingjian3， WANG Haifang4，SHAO Qihui1,2， HAN Dongfeng1,2， LI Rendong1
1.Institute of Geodesy and Geophysics， Chinese Academy of Sciences Wuhan 430077， China；2.University of the Chinese Academy of Sciences， Beijing 100049， China；3.Institute of Schistosomiasis Control， Hubei Provincial Center for Disease Control and Prevention， Wuhan 430079， China；4.Investigation and Planning Institute of Hubei Province，Wuhan 430079，China
Abstract：Jianghan Plain was one of the most serious schistosomiasis endemic areas in China. Over the last six decades， the national control programmes brought schistosomiasis japonica largely under control. However， the Oncomelania hupensis breeding environment still exists widely， and the overall snail area decrease is not significant， suggesting that the risk of a rebound remains. We studied the geographical division of snail control that could contribute to precision snail control. The snail control zoning index system was established based on village-level snail situation and dynamics， snail breeding environment and snail control status from 2013 to 2017 in Jianghan Plain. We used the two-step cluster method to cluster zoning indexes. The results show that the main dynamic change type of snail area is “no change”， followed by “decrease or unchanged” and “increase or unchanged”. Indicators including snail status， geographical environment， and control measures have spatial heterogeneity. Jianghan Plain is divided into three first-level regions and seven second-level subregions， and their main characteristics and risk degree are analyzed. The control strategies and key control objectives of each control region are proposed from the aspects of reducing snail risk， improving snail environment and strengthening snail control. The study on snail control regionalization could provide a new idea and method for developing targeted snail control scheme.
崔 颖,邱 娟,徐兴建,王海芳,邵奇慧,韩东枫,李仁东. 江汉平原钉螺螺情的时空变化及其精准防控分区探讨[J]. 华中师范大学学报(自然科学版), 2020, 54(4): 721-733.
CUI Ying,QIU Juan,XU Xingjian,WANG Haifang,SHAO Qihui,HAN Dongfeng,LI Rendong. Research on spatiotemporal variation of snails and its precision control regionalization in Jianghan Plain. journal1, 2020, 54(4): 721-733.
2020, Vol. 54 
