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曹娥江是浙江省八大水系之一,流域面积4485平方公里,在嵊县、新昌两县境内有3000平万公里,上游主要由长乐江、新昌江、澄潭江、黄泽江汇合而成。 过去曹娥江流域水土流失、河道淤塞比较严重,近年来情况有所好转。表现在;①封山育林有成绩,幼林面积大量增加,荒山面积逐年减少,如新昌县近六、七年来,仅人工造林3万亩,荒山由原来的12万亩减少到7万亩。②大小水库增加,下游洪涝灾害减少。这两个县到1981年底累计建造十万立米以上水库
Cao E River is one of the eight major water systems in Zhejiang Province. The basin covers an area of 4485 square kilometers and has a surface area of 3,000,000 kilometers in Sheng County and Xinchang County. The upper reaches are mainly composed of Changle River, Xinchang River, Chengtan River and Huangze River. In the past, there was soil erosion in the Cao’e River Basin and siltation of the riverway was more serious. The situation has been somewhat improved in recent years. For example, in Xinchang County in the past six or seven years, only 30,000 mu of artificial afforestation has been made and the waste hills have been reduced from 120,000 mu to 70,000 mu. ② increase the size of reservoirs, reduce the downstream floods. By the end of 1981, these two counties had built reservoirs of more than 100,000 cubic meters