Nanchong is a famous cultural city with a long history of 2200 years and one of the eight central cities in Sichuan Province.It is located in the northeast of Sichuan Basin and the middle reaches of Jialing River, the largest tributary of the Yangtze River.Nanchong has jurisdiction over five counties, three districts and one city, 481 townships, covering an area of 12494 square kilometers, with a population of 7.26 million.Nanchong is an important base of grain and oil, agricultural and sideline products in China. It is famous for silkworm cocoons, oranges, pigs, etc.Nanchong has a relatively complete range of industries and many advantageous products. It has formed a multi category and multi-level coordinated local industrial system with silk, textile, machinery, food, electricity, petroleum, chemical industry, medicine, and clothing industries as its pillars. It is one of the four major sericulture production bases and silk production and export bases in China.Nanchong is rich in hydropower mineral resources, which is an important water