长江流域血吸虫病的化学地理研究  

STUDY ON CHEMICAL GEOGRAPHY OF SCHISTOSOMIASIS IN THE YANGTZE VALLEY

作　　者：王明远[1] 章申[1] 

机构地区：[1]中国科学院,国家计划委员会地理研究所

出　　处：《地理研究》1992年第4期68-74,共7页Geographical Research

基　　金："七五"国家科技攻关课题<长江水环境背景值研究>的子课题<长江水环境背景值应用研究>的成果

摘　　要：血吸虫病是一种水源性传播的寄生虫病。本文探讨了血吸虫病流行与水文化学地理因素的关系。病区水体富集微量元素,31种微量元素的平均累乘指数>1,其中亲铜元素、亲石元素和稀土元素的含量较高,而亲铁元素和Hg、As的含量较低,钙镁摩尔比值接近毛蚴最造钙镁摩尔比值(0.8)。Schistosomiasis in the Yangtze Valley is mainly distributed in the middle-lower reaches of the Yangtze River, the Chengtu Plains and others. The results of this research show that chemicogeographical environment is the essential ecological factor in epidemic of schistosomiasis. The content of trace element Sr, Ba, Rb, Sc, Cs, F,Th, Pb, Zn, Cd, Sb, Se, La, Ce, Yb, Tb, Lu of water bodies (the water through a filter film, the water without being filtered and sediments) in endemic area is higher than those of nonendemic area. However content of V, Fe, Ni, Mo, As, Hg of water bodies in endemic area is lower than those of nonendemic area. The average continuous multipler index of 31 trace elements of water bodies in endemic area exceeds 1. The molal ratio of Ca to Mg of sediments in endemic area is approximately equal to those (0.8) suitable for the existence of miracidia.

关 键 词：血吸虫病 微量元素 化学地理 

分 类 号：R532.21[医药卫生—内科学]