Leech is used in the treatment of diseases of increasingly aroused people's attention

　　多年来，大多数人药的水蛭都是从野外采集而采的。而大量使用化肥、农药芍，土壤的土质发生改变；

　　Over the years, most people are of the medicine leeches from field collection and mining. The extensive use of fertilizers and pesticides Que, soil soil change;

　　Beneficial insects useful bird, insect outbreaks serious already was the fact that for years;

　　大量的工业污水排放，多数河、江、湖已被污染，水质恶化，水蛭养殖的生存空间不断被挤压。

　　A large amount of industrial wastewater discharge, most of the river, river, lake has been polluted, water quality deterioration, leech farming living space continuously squeezed.

　　加上一些河流花、湖泊干涸更是加剧水蛭野生资源的减少。

　　Plus some rivers, flowers, lakes dry leech feed wild resources.

　　每年春秋两季，水温超过、‘℃时交配，2。℃c左右时爬上岸，在离水面30厘米处的湿土上产卵。

　　During the spring and autumn every year, the water temperature is over, '℃ when mating, 2. ℃ about c climbed out, on 30 centimeters from the surface of the wet earth to lay eggs.

　　此时，也是人们捕捉水蛭的时期，大小水蛭一起被掠夺性捕捉，造群体减少，多年后繁殖量下降。一些产区叮供商品量下降。

　　At this time, was also the time when people catch leeches, size leech together by predatory capture, build group decreased, after years of production decline. Some ding for the decline are sold.