中国血吸虫病防治杂志
中國血吸蟲病防治雜誌
중국혈흡충병방치잡지
CHINESE JOURNAL OF SCHISTOSOMIASIS CONTROL
2010年
2期
136-140
,共5页
胡钢%卓尚炯%黄昌林%易平%刘同%詹玉书
鬍鋼%卓尚炯%黃昌林%易平%劉同%詹玉書
호강%탁상형%황창림%역평%류동%첨옥서
日本血吸虫%感染性钉螺%洲滩%分布环境%地面高程%坡度%植被
日本血吸蟲%感染性釘螺%洲灘%分佈環境%地麵高程%坡度%植被
일본혈흡충%감염성정라%주탄%분포배경%지면고정%파도%식피
Schistosoma japonicum%Infected Oncomelania snail%Marshland%Distribution environment%Ground elevation%Gradient%Vegetation
目的 查明日本血吸虫感染性钉螺在洞庭湖洲滩的分布环境,着重分析洲滩的离岸距离、地面高程、坡度及优势植被种类等环境因素对感染螺分布的影响,为消除血吸虫病疫源地确定重点目标.方法 在洞庭湖上游和下游共选择3类洲滩,分别在1987-1989年及2009年采用系统抽样法进行钉螺与感染性钉螺分布调查,查螺段面从堤岸边最高有螺线往下一直查到最低有螺线止,同时用水准仪测定地面高程(吴淞零点),并记录植被种类.结果 在3类洲滩钉螺孳生地中,有感染性螺分布的面积平均占35.5%.主要分布在大堤边和洲滩上部的坡岸地带.地势高、坡度陡的环境感染性钉螺较多;地势低、坡度小的平坦环境没有查到感染性钉螺.在芦苇地带也没有查获感染性钉螺,而在芦杂、柳林、莎草、藜蒿区均可有感染性钉螺出现.结论 洞庭湖区的感染性钉螺有明显的沿堤岸分布趋向,其分布范围与汛期的水位、传染源(终宿主)的活动等有关.
目的 查明日本血吸蟲感染性釘螺在洞庭湖洲灘的分佈環境,著重分析洲灘的離岸距離、地麵高程、坡度及優勢植被種類等環境因素對感染螺分佈的影響,為消除血吸蟲病疫源地確定重點目標.方法 在洞庭湖上遊和下遊共選擇3類洲灘,分彆在1987-1989年及2009年採用繫統抽樣法進行釘螺與感染性釘螺分佈調查,查螺段麵從隄岸邊最高有螺線往下一直查到最低有螺線止,同時用水準儀測定地麵高程(吳淞零點),併記錄植被種類.結果 在3類洲灘釘螺孳生地中,有感染性螺分佈的麵積平均佔35.5%.主要分佈在大隄邊和洲灘上部的坡岸地帶.地勢高、坡度陡的環境感染性釘螺較多;地勢低、坡度小的平坦環境沒有查到感染性釘螺.在蘆葦地帶也沒有查穫感染性釘螺,而在蘆雜、柳林、莎草、藜蒿區均可有感染性釘螺齣現.結論 洞庭湖區的感染性釘螺有明顯的沿隄岸分佈趨嚮,其分佈範圍與汛期的水位、傳染源(終宿主)的活動等有關.
목적 사명일본혈흡충감염성정라재동정호주탄적분포배경,착중분석주탄적리안거리、지면고정、파도급우세식피충류등배경인소대감염라분포적영향,위소제혈흡충병역원지학정중점목표.방법 재동정호상유화하유공선택3류주탄,분별재1987-1989년급2009년채용계통추양법진행정라여감염성정라분포조사,사라단면종제안변최고유라선왕하일직사도최저유라선지,동시용수준의측정지면고정(오송영점),병기록식피충류.결과 재3류주탄정라자생지중,유감염성라분포적면적평균점35.5%.주요분포재대제변화주탄상부적파안지대.지세고、파도두적배경감염성정라교다;지세저、파도소적평탄배경몰유사도감염성정라.재호위지대야몰유사획감염성정라,이재호잡、류림、사초、려호구균가유감염성정라출현.결론 동정호구적감염성정라유명현적연제안분포추향,기분포범위여신기적수위、전염원(종숙주)적활동등유관.
Objectives To investigate the distribution of Schistosoma japonicum infected Oncomelania snails in the marshland of Dangting Lake region,and explore the effects of gradient and vegetation on the distribution of the infected snails.Methods Three marshland areas in upstream and downstream of Dongting Lake were selected.The snail distribution was investigated and the ground elevation was assessed (Wusong's elevation of zero)and the vegetation types were also recorded from 1987-1989 and 2009.Results In the 3 types of snail habitats of the marshland,the average rate of areas with infected snails was 35.5%,and the snails mainly distributed beside the embankment and slope zone.More infected snails were found in the high altitude and steep slope zone,while no infected snails were found in the low altitude and flat slope zone,and reed areas as well.Conclusion The Schistosoma japonicum infected snails in the marshland of Dongting Lake mainly distribute beside the embankment and slope zoon,and are correlated with the water level in flood seasons and the activities of definitive hosts.
