水蛭俗称蚂蝗,是一种宝贵的药用资源,具有多种药用功能,很有开发价值。据有关统计,到99年底我国水蛭短缺量达30万公斤。人工养殖水蛭前景看好,每亩纯利2万元以上,是目前养鱼效益的7-10倍。河南省科学院地理研究所海洋 Leech commonly known as leech, is a valuable medicinal resources, with a variety of medicinal functions, great development value. According to relevant statistics, by the end of 1999, the shortage of leeches in our country amounted to 300,000 kilograms. Good prospects for artificial breeding leeches, more than 20,000 yuan per mu net profit, is now 7-10 times the benefits of fish farming. Institute of Geography, Henan Academy of Sciences