Air quality in Dujiangyan, Chengdu

Dujiangyan in Chengdu has good air quality.

Dujiangyan is a county-level city under the jurisdiction of Sichuan Province, managed by Chengdu, located at the mouth of Minjiang River on the northwest edge of Chengdu Plain, bordering Pengzhou City, Pidu District and Wenjiang District in the east, Wenchuan County in the west and north, and chongzhou city in the south. The territory of the city is high in the northwest and low in the southeast, belonging to the subtropical humid monsoon climate zone of Sichuan Basin, with a total area of 1.208 square kilometers. By May 2023, the city will administer 6 streets and 5 towns. By the end of 2022, the permanent population of the city will be 7 1.46 million.

1May, 988, guanxian was renamed Dujiangyan City, which was named after Dujiangyan, a water conservancy project. Referred to as "irrigation", it is a national historical and cultural city with a history of more than 2,000 years. It thrives on weirs and water. In the Neolithic Age, it was the area where the ancestors of ancient Shu lived together, and it was one of the birthplaces of ancient Shu.

Dujiangyan-Qingcheng Mountain was listed as a scenic spot in western Sichuan during the Republic of China. On July 20 19, it was selected as a pilot project in a county (district) with strong national intellectual property rights. In September, it was selected as the first batch of national tourism demonstration zones. Dujiangyan City has two world cultural, natural and irrigation engineering heritages: Qingcheng Mountain-Dujiangyan and Giant Panda Habitat.

geographical environment

Dujiangyan City straddles Longmen Mountain in western Sichuan and the top of Minjiang alluvial fan in Chengdu Plain. The terrain of this city is high in the northwest and low in the southeast. Mountains, Zhongshan, low mountains, hills and plains are distributed in a ladder shape. Dujiangyan mountainous area accounts for 65.79%, and the flat dam area accounts for 34.2 1%. The terrain gradually decreases from high mountains, Zhongshan to low mountains and then to plains, with an altitude of more than 500 meters to 4500 meters.

The lowest point is Sanshui in Jiangyan Township, with an elevation of 592m, and the highest point is Guangguang Mountain in Hongkou Township, with an elevation of 4582m and an average elevation of 720m in the urban area. Geologically, it belongs to Cathaysian tectonic system, which spans two different natural geographical regions, namely Chengdu Plain and Longmenshan area. The geomorphic unit belongs to the first terrace of Minjiang alluvial fan, with high terrain in the northwest and low terrain in the southeast. Mountains, mountains, hills and plains are distributed in a ladder shape.

Baidu Encyclopedia-Dujiangyan City