• Mesa
  • Duchang 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.

Duchang County is located in the north of Jiangxi Province, belonging to Jiujiang City, bordering Poyang Lake, located in the center of the "Golden Triangle" of Nanchang, Jiujiang and Jingdezhen, connecting Wushui to the south and connecting the Yangtze River to the north. Hangzhou-Rui Expressway and Jiujing-Quzhou Railway, du-Jiu Expressway. The land area is 2669.5 square kilometers, of which the water area is 1390 square kilometers, accounting for 52.1 percent of the total land area, and it has the waters of Poyang Lake. The county has jurisdiction over 24 townships, 259 village committees and 826600 people. Among them, 21 townships are along the lake, and the lake coastline is 185 kilometers long, accounting for the top 10 of the entire lake shoreline. In March 2019, Duchang County was listed as the first batch of revolutionary cultural relics protection and utilization district and county list.
Airport In Duchang County - Jiujiang Lushan Airport
Jiujiang Lushan Airport (Jiujiang Lushan Airport, IATA: JIU, ICAO: ZSJJ), referred to as "Lushan Airport", is located on Airport Road, Minshan Township, Chaisang District, Jiujiang City, Jiangxi Province, China, 8.5 kilometers away from the west gate of Lushan National Scenic Spot in the northeast. It is 16 kilometers away from the center of Chaisang District and 31 kilometers away from the center of Jiujiang. It is a 4C-level military-civilian tourism feeder airport   .
On June 18, 1996, Jiujiang Lushan Airport officially opened civil aviation services; in 2000, 2002, and 2006, Jiujiang Lushan Airport was suspended for three times; on March 21, 2015, Jiujiang Lushan Airport was suspended for renovation; on June 3, 2019 , Jiujiang Lushan Airport resumption and reconstruction project successfully tested flight   .
As of February 2021, the terminal building of Jiujiang Lushan Airport has an area of ​​11,815 square meters, and there are 3 category C remote stands on the civil aviation apron; the runway is 2,800 meters long and 50 meters wide, and can take off and land Airbus A320-200, Boeing B737- Models of 800 and below; can meet the needs of annual passenger throughput of 500,000 passengers   .
In 2021, Jiujiang Lushan Airport will handle a total of 15,880 passengers, ranking 241st in the country; 222 aircraft take-offs and landings, ranking 244th in the country   .
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