Phoenix (/ˈfiːnɪks/ FEE-niks; Navajo: Hoozdo; Spanish: Fénix or Fínix,[citation needed] Walapai: Banyà:nyuwá) is the capital and most populous city of the U.S. state
of Arizona, with 1,608,139 residents as of 2020. It is the fifth-most populous city in the United States, and the only U.S. state capital with a population of more than one million residents.
Phoenix is the anchor of the Phoenix metropolitan area, also known as the Valley of the Sun, which in turn is part of the Salt River Valley. The metropolitan area is the 11th largest by population in the United States, with approximately 4.85 million people as of 2020. Phoenix, the seat of Maricopa County, has the largest area of all cities in Arizona, with an area of 517.9 square miles (1,341 km2), and is also the 11th largest city by area in the United States. It is the largest metropolitan area, both by population and size, of the Arizona Sun Corridor megaregion.
Decheng District, an area under the jurisdiction of Dezhou City, Shandong Province, is located in the northwest of Shandong Province. It is the central city of Dezhou City, with Beijing and Tianjin in the north and Jinan in the south. It is located in Tianjin Binhai New area and Bohai Economic Circle. As of 2016, Decheng District has jurisdiction over 7 streets, 5 towns, 48 urban communities and 54 rural communities, covering an area of 231square kilometers and a resident population of 445300. Decheng District has the second largest thermal power plant in China: Huaneng Dezhou Power Plant, with an annual surplus of 6 billion kilowatt hours, and three large plain reservoirs with reserves of 200 million cubic meters. it has six thermal power plants with daily heating of 3000 tons and natural gas pipeline network with daily gas supply of 300000 cubic meters. In 2017, the annual GDP of Decheng District reached 29.61 billion yuan, calculated at comparable prices, compared with the same period last year.