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  • Changning

Tucson (/ˈtuːsɒn, tuːˈsɒn/; Spanish: Tucson, O'odham: Cuk-Ṣon) is a city in and the county seat of Pima County, Arizona, United States, and is home to the University of Arizona. It is the second largest city in Arizona behind Phoenix, with a population of 542,629 in the 2020 United States census, while the population of the entire Tucson metropolitan statistical area (MSA) is 1,043,433. The Tucson MSA forms part of the larger Tucson-Nogales combined statistical area (CSA). Both Tucson and Phoenix anchor the Arizona Sun Corridor. The city is 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U.S.–Mexico border. Tucson is the 34th largest city and the 53rd largest metropolitan area in the United States (2014).

Major incorporated suburbs of Tucson include Oro Valley and Marana northwest of the city, Sahuarita south of the city, and South Tucson in an enclave south of downtown. Communities in the vicinity of Tucson (some within or overlapping the city limits) include Casas Adobes, Catalina Foothills, Flowing Wells, Midvale Park, Tanque Verde, Tortolita, and Vail. Towns outside the Tucson metro area include Benson to the southeast, Catalina and Oracle to the north, and Green Valley to the south.

Tucson was founded as a military fort by the Spanish when Hugo O'Conor authorized the construction of Presidio San Agustín del Tucsón in 1775. It was included in the state of Sonora after Mexico gained independence from the Spanish Empire in 1821. In 1853, the United States acquired a 29,670 square miles (76,840 km2) region of present-day southern Arizona and southwestern New Mexico from Mexico under the Gadsden Purchase. Tucson served as the capital of the Arizona Territory from 1867 to 1877. Tucson was Arizona's largest city by population during the territorial period and early statehood, until it was surpassed by Phoenix by 1920. Nevertheless, population growth remained strong during the late 20th century. In 2017, Tucson was the first American city to be designated a "City of Gastronomy" by UNESCO.

Changning, which belongs to Hunan Province, is a county-level city hosted by Hengyang City. It is located in the south of Hunan Province and the south bank of the middle reaches of the Xiangjiang River, bounded by Zhonglingshui and Leiyang City in the east, Guiyang County in Chenzhou City in the south, Qiyang County in Yongzhou City in the west, and Xiangjiang River in the north facing Qidong County and Hengnan County. By the end of 2016, Changning had jurisdiction over 14 towns, 4 townships and 3 streets. The terrain in the territory is high in the south and low in the north, roughly showing a two-step distribution, belonging to a subtropical monsoon humid climate. It is located between latitude 26 °07 & # 39; to 26 °36 & # 39, longitude 112 °07 & # 39; east longitude 112 °41 & # 39;. The area is 2046.6 square kilometers. Changning is the hometown of Camellia oleifera in China, the hometown of Cunninghamia lanceolata and bamboo, the free city of public transportation, and the second batch of commercial comprehensive administrative law enforcement in the country.
Airport In Changning - Hengyang Nanyue Airport
Hengyang Nanyue Airport (Hengyang Nanyue Airport, IATA: HNY, ICAO: ZGHY) is located in Hengnan County, Hengyang City, Hunan Province, China, about 24 kilometers away from Hengyang City. Mid-South Regional Aviation Center   .
On February 22, 2012, the Development and Reform Commission of the People's Republic of China passed the feasibility study report of Hengyang Nanyue Airport, and it was officially opened to navigation on December 23, 2014, named Hengyang Nanyue Airport   .
As of December 2014, Hengyang Nanyue Airport has a terminal building of T1 (domestic in China) with a total area of ​​14,300 square meters; a runway with a length of 2,600 meters; an apron of 31,000 square meters and 11 seats   . [twenty two]  As of January 2019, a total of 21 routes have been opened, covering 29 cities   .
In 2019, the passenger throughput of Hengyang Nanyue Airport was 1.1029 million passengers, a year-on-year increase of 35.1%; the cargo and mail throughput was 1,300 tons, a year-on-year increase of 65.6%; 114th and 124th   .
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