• Portland
  • Erqi District

Portland (/ˈpɔːrtlənd/, PORT-lənd) is a port city in the Pacific Northwest and the largest city in the U.S. state of Oregon. Situated at the confluence of the Willamette and Columbia rivers, Portland is the county seat of Multnomah County, the most populous county in Oregon. As of 2020, Portland had a population of 652,503, making it the 26th-most populated city in the United States, the sixth-most populous on the West Coast, and the second-most populous in the Pacific Northwest, after Seattle. Approximately 2.5 million people live in the Portland metropolitan statistical area (MSA), making it the 25th most populous in the United States. About half of Oregon's population resides within the Portland metropolitan area.

Named after Portland, Maine, the Oregon settlement began to be populated in the 1840s, near the end of the Oregon Trail. Its water access provided convenient transportation of goods, and the timber industry was a major force in the city's early economy. At the turn of the 20th century, the city had a reputation as one of the most dangerous port cities in the world, a hub for organized crime and racketeering. After the city's economy experienced an industrial boom during World War II, its hard-edged reputation began to dissipate. Beginning in the 1960s, Portland became noted for its growing liberal and progressive political values, earning it a reputation as a bastion of counter-culture.

Erqi District is the central city of Zhengzhou, the capital of Henan Province, named for commemorating the general strike of the Beijing-Han Railway on February 7, 1923. It is located in the southwest of the center of Zhengzhou, bordered by Guancheng District in the east, adjacent to Zhongyuan District and Xingyang City in the west, Xinmi City and Xinzheng City in the south, and Jinshui District in the north. As of 2017, Erqi District covers a total area of 159square kilometers, has 17 streets, has a resident population of 801500, and the urbanization rate is 90.39%. Erqi District has a long history and heavy culture. There are Han Dynasty dwellings Denggongzhai, Ming Dynasty Zhou mourning Wang Mausoleum and many other historical sites. The site of Lao Nu Temple in Zhengzhou pushed forward the origin of Chinese civilization for 30-50 000 years; the blue-glazed porcelain of the Shang Dynasty advanced the firing history of Chinese porcelain by more than 1000 years; Yan ceramics, Zheng Shang porcelain and other porcelain have gone abroad and entered the world. One hundred years
Airport In Erqi District - Zhengzhou Xinzheng International Airport
Zhengzhou Xinzheng International Airport (Zhengzhou Xinzheng International Airport, IATA: CGO, ICAO: ZHCC), referred to as "Xinzheng Airport", is located at the junction of Xinzheng City and Zhongmu County, Zhengzhou City, Henan Province, China. It is a 4F international civil airport and the first in China The core component of Zhengzhou Airport Economic Comprehensive Experimental Zone, a national airport   , an international air cargo hub airport, one of the eight major regional hub airports in China   , "7×24 hours" "full time" customs clearance international airports, large domestic aviation hub airports   , international scheduled flight airports, and national first-class air ports open to the outside world.     
On August 28, 1997, Zhengzhou Xinzheng International Airport was completed and opened to traffic. In May 2013, the relocation of the second phase of the project began. In January 2014, the second phase of the reconstruction and expansion project started construction. On December 22, 2015, the second phase expansion project of Zhengzhou Xinzheng International Airport was officially put into operation. On January 7, 2016, the second runway of Zhengzhou Xinzheng International Airport was opened. On March 30, 2016, the T1 terminal was closed for renovation, and all flights were moved to the T2 terminal.
As of December 2015, Zhengzhou Xinzheng International Airport has two terminals (T1 terminal is out of service), with a total area of ​​620,000 square meters; T1 and T2 terminals have 158 parking bays, including 149 passenger aircraft parking bays ; It has two runways, 3400 meters and 3600 meters respectively.   As of December 2018, Zhengzhou Xinzheng International Airport has 55 passenger airlines, 208 passenger routes, and 116 passenger cities; 21 cargo airlines, 34 cargo routes, and 40 cargo cities.   
In 2020, the passenger throughput of Zhengzhou Xinzheng International Airport was 21.4067 million passengers, a year-on-year decrease of 26.5%, ranking 11th in the country; the cargo and mail throughput was 639,400 tons, a year-on-year increase of 22.5%, ranking 6th in the country, with 178,600 transport movements , a year-on-year decrease of 17.4%.  
On August 16, 2022, the North Cargo Area of ​​Zhengzhou Xinzheng International Airport will start trial operation.  
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