论文部分内容阅读
前言上饶黄市乡在上饶东南方向约25华里,是个丘陵地带,靠广丰边界是山区,根据省血吸虫病防治所(1956)的调查资料,该乡是血吸虫病疫区,钉螺分布面积纵横各达15华里,只有两个自然村没有发现钉螺,全乡有钉螺的溝约165条,计长47,414公尺左右,有钉螺的池塘约126口,面积19,827平方公尺,有钉螺的水稻田3259亩,1957年春至1958年春,我们在该乡进行水稻田钉螺生态观察,由于人力关系,只选择了小范围进行观察,茲将有关水稻田钉
Preface Shangrao Huangshi Township southeast of Shangrao about 25 Wuli, is a hilly area, by the Guangfeng border is a mountainous area, according to the provincial schistosomiasis prevention and control (1956) survey data, the township is schistosomiasis endemic, vertical and horizontal distribution of Oncomelania up to There are only 165 ditch with snail snail, about 47,414 meters in length and about 126 snail ponds, with an area of 19,827 square meters and 3259 mu of snail rice fields. From the spring of 1957 to the spring of 1958, we carried out ecological observation of rice snail snail in the township. Due to manpower relations, we only selected a small area for observation.