After Su Shi arrived in Hangzhou, he encountered drought, famine and plague. Su Shi asked the court to exempt one third of the rice provided on this road and send a message to the shaved monks in exchange for rice to help the hungry. The following spring, we sold the rice in the regular warehouse at a reduced price, made a lot of porridge and medicine, and sent people to take doctors to the streets to treat diseases, saving many people. Su Shi said: "Hangzhou is an important place for land and water transportation, and more people died of the epidemic than other places." So he collected an extra 2,000 yuan, took out fifty taels of gold from his pocket, built a treatment place, and gradually accumulated money and food to guard against epidemics.
It turns out that Hangben is near the sea, with salty springs and few residents. Li Mi, the secretariat of the Tang Dynasty, began to take water from the West Lake as six wells, and people were very satisfied with the water. Bai Juyi also dredged the water from the West Lake to the Caohe River, and irrigated thousands of hectares from the river to the fields, making the people rich. There are many dysprosium in the lake. Since Tang and Qian, he was cured at the age of 20, and Song Xingfei. Dysprosium has piled up in the field, and there is almost no water. The Caohe River fell and was given to Jiang Chao. A boat in the city was silted up by the tide. After three years of sweeping, it was a catastrophe for the people and six wells were destroyed. Seeing that the Maoshan River was particularly affected by river tides and the Yanqiao River was particularly affected by lake water, he dredged two rivers to pass water. Rebuild the weir gate, thinking that the lake limits livestock discharge and the river tide will no longer enter the market. Spare no effort to drill six wells, and use the sunken lake in Noda, with a north-south diameter of 30 miles, as the passage of the long embankment. Wu Jingling Mausoleum, weeds must be weeded in spring, and not an inch of grass will be released. And keep people in water, dysprosium will not come back to life. Those who receive the benefits of repairing the lake take the surplus money from the disaster relief, and invite hundreds of monks to raise servants. When the embankment was built, hibiscus and willow trees were planted on it, which looked like a painting. The name of Hangzhou is "Su Gong Di".
Hangzhou used to be near the sea. The local springs are salty and bitter, with few residents. Li Mi, the secretariat of the Tang Dynasty, first took water from the West Lake and drilled six wells. People used enough water. Bai Juyi also dredged the water from the West Lake into the canal, from which it flowed into the fields, irrigated the fields 1000 hectares, and the people lived a prosperous life. There are many roots of Zizania latifolia in the lake, which are dredged and treated every year from Tang Dynasty to Qianjia. After the founding of the People's Republic of China in the Song Dynasty, it stopped, and the roots of Zizania latifolia piled up into fields, leaving little water. Without the convenience of the canal, water is supplied by the tide in the river. The ship is driving in the city, and the tide is muddy. Digging once every three years has become a catastrophe for the people, and six wells are almost abandoned. Su Shi saw that a river in Maoshan was specially used to receive tidal water in the river and a river in Yanqiao was specially used to receive lake water, so he dredged two rivers for shipping. A dam gate was built as a hub for storing and discharging lake water, so that the tide in the river no longer flows into the city. Six wells were built with the remaining material resources and manpower, the roots of Zizania latifolia were piled in the lake, and a 30-mile-long embankment was built for traffic. People in Wudi race are always uprooted in spring, and nothing grows. Su Shi also raised people to plant water chestnuts in the lake to stop the roots of Zizania latifolia from growing. The money collected is going to be used to repair the lake, and the remaining 10,000 tons of money, 10,000 pieces of grain, 100 book for shaving monks is used to recruit people. After the embankment was built, hibiscus mutabilis and willow trees were planted on the embankment, which looked like paintings. Hangzhou people call it "Su Gong Di".