• Mesa
  • Nongan County

A mesa is an isolated, flat-topped elevation, ridge or hill, which is bounded from all sides by steep escarpments and stands distinctly above a surrounding plain. Mesas characteristically consist of flat-lying soft sedimentary rocks capped by a more resistant layer or layers of harder rock, e.g. shales overlain by sandstones. The resistant layer acts as a caprock that forms the flat summit of a mesa. The caprock can consist of either sedimentary rocks such as sandstone and limestone; dissected lava flows; or a deeply eroded duricrust. Unlike plateau, whose usage does not imply horizontal layers of bedrock, e.g. Tibetan Plateau, the term mesa applies exclusively to the landforms built of flat-lying strata. Instead, flat-topped plateaus are specifically known as tablelands.

Nong'an County, which belongs to Changchun City, Jilin Province, is located in the hinterland of Songliao Plain, with 124 °31 degrees east longitude 125 °45 degrees east longitude and 43 °55 degrees north latitude 44 °55 'north latitude. Dehui City to the east, Changchun City to the south, Gongzhuling City and Changling County to the west, and Songyuan City to the north. The ancient city of Nong'an was founded in the country of Gufuyu (Fuyu), known as Huanglong House in ancient times, which is an important town in the north, with vast plains and developed industry and agriculture. The county covers an area of 5400 square kilometers and has jurisdiction over 4 streets and 22 townships, including 3 provincial industrial parks, 3 municipal industrial parks and 377 administrative villages, with a total population of 1.2 million (2013). Nong'an County is located in the ecological economy in the west of Jilin Province. Within the one-hour economic circle of Changchun metropolitan area, Nong'an County is an important fulcrum for the westward extension of Changjitu national strategy.
Airport In Nongan County - Changchun Longjia International Airport
Changchun Longjia International Airport (Changchun Longjia International Airport, IATA: CGQ, ICAO: ZYCC), located at the junction of Donghu Town and Longjia Town, Jiutai District, Changchun City, Jilin Province, China, about 32 kilometers southwest of Changchun city center and southeast About 76 kilometers away from the center of Jilin, it is a 4E-level international trunk airport, an international regional hub in Northeast Asia, and a freight distribution center for China and Europe   .
On May 29, 2003, Changchun Longjiahu Airport officially started construction; on July 15, 2005, Changchun Longjiahu Airport was renamed "Changchun Longjia International Airport"; on August 27, 2005, Changchun Longjia International Airport officially Open to aviation, Changchun Dafangshen Airport and Jilin Ertaizi Airport have been transferred to this location for overall civil aviation operations   .
As of February 2021, Changchun Longjia International Airport has 2 terminals with a total construction area of ​​204,000 square meters; the civil aviation station has 61 aircraft seats, including 32 near aircraft seats; the runway is 3,200 meters long and 45 meters wide ; It can meet the needs of annual passenger throughput of 16 million passengers   .
In 2020, the passenger throughput of Changchun Longjia International Airport was 9.360541 million passengers, a year-on-year decrease of 32.8%, ranking 29th in the country; the cargo and mail throughput was 83,672 tons, a year-on-year decrease of 5.9%, ranking 32nd in the country; the number of aircraft movements was 75,510 Flights, down 23.6% year-on-year, ranking 37th in the country   .
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