Oncemelania is the middle-parasitifer of schistosome. Controlling the oncomelania is the important way of preventing the......

目的探讨南水北调东线干渠途经地区土壤成分与钉螺孳生的关系。方法在工程沿线地区选取4个研究点,采集土壤标本,检测其中的化学元......