• Mesa
  • Dehui City

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.

Dehui City, which belongs to Changchun City, Jilin Province, is located in the central and northern part of Jilin Province and the hinterland of Songliao Plain. Located in latitude 44 °02-quot;~ 44 °53 "north, longitude 125 °14" ~ 126 °24 "east, facing Yushu City and Shulan County across the Songhua River to the east, Nong'an County to the west, Jiutai City and Changchun City to the south, and Fuyu County to the north, with a total area of 3435 square kilometers. Dehui City is an important node city on the Beijing-Harbin line, a national ecological demonstration advanced city, and a provincial health city in Jilin Province. Belongs to the north temperate continental monsoon semi-humid climate zone, the river belongs to the Songhua River system, the terrain inclines from the southwest to the northeast, the topography is undulating. As of 2017, Dehui has 4 streets, 12 towns and 4 townships. In 2015, the total registered population of the city was 9.
Airport In Dehui City - 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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