Dongqian Lake is also an important water conservancy project in Ningbo. There are seven jiutang around the lake. The seven jiutang are: Qianqian, Meihuqi (waste), Sumu (waste), Mozhiqian, Pingshuiqi, Daqiuqian. Jiutang is Meihutang, Meihu Wutang, Sumutang, Mozhi Wutang, Dagutang, Pingshuitang, Qiangutang, Fangjiatang, Gaogutang. The Dongqian Lake area is a subtropical monsoon climate, with an average annual precipitation of about 1374 mm, the minimum temperature below zero 8.3 °C, the maximum temperature 38.5 °C, and the average annual water temperature is 16.2 °C. Due to the lake water temperature adjustment, it is suitable for intensive farming, drought and flood protection, and it is also conducive to shipping and summer and cold. Dongqian Lake water irrigation Jixian, Fenghua, Zhenhai eight townships more than 500,000 hectares of farmland, making the farmland around the lake years old and Fengdeng. In the past, there was a saying in Ningbo: "Tian wants Dongxiang, children want their own life." Tian in Dongxiang is annual high-yield, relying on Dongqian Lake. Moreover, most of the food water in Ningbo city also depends on this lake.