The Agriculture Ministry of China also designated Leping as a demonstration zone for "pollution-free" vegetable production. Transportation Jingdezhen is the most important transportation hub in the northeast region of Jiangxi province. Historically, Jingdezhen's main communication route was via the Chang River. It could ship its porcelain down the Chang to Poyang Lake and connected there with the Yangtze River in Hukou County, Jiangxi Province. From there the porcelain could get to the coast for export. Today, the city is connected to the rest of China via road, rail, and air. Road G35, running from Jinan, Shandong to Guangzhou, Guangdong, G56 Hangzhou-Ruili Highway from Hangzhou, Zhejiang to Ruili, Yunnan, G206, running from Yantai, Shandong to Shantou, Guangdong. Rail The Anhui–Jiangxi Railway connects Jingdezhen to many key cities in China such as Shanghai, Nanjing, Jinan, Qingdao, Hefei, Guangzhou, Fuzhou, Xiamen, Nanchang, Kunming and Guiyang, etc. In addition, the Jiujiang- Jingdezhen-Quzhou Railway is under construction. In the near future, the two rail lines will intersect in Jingdezhen, and make the city an important rail transportation hub in Jiangxi Province and East China. The Jingdezhen Railway Station is located in the city center and is under the control of the Nanchang Railway Bureau. Air Jingdezhen Luojia Airport is located at Luojian Village, northwest of Jingdezhen city, and about from the city's downtown. CAAC statistics show that in 2008 Jingdezhen Airport served 189,256 passengers, 81st among all Chinese airports. Annual cargo and mail traffic was 119.8 tons; annual landings were 2,424, ranking 111st and 91st respectively in China. There are flights from Jingdezhen to Beijing(CA), Shanghai(ZH), Guangzhou(ZH), Shenzhen(ZH), Chengdu(CA), Hangzhou(MU), Fuzhou(ZH), Kunming(MU), Xiamen(CA), Xi'an(ZH). There are no international flights. Jingdezhen Airport is the second largest airport in Jiangxi Province. The largest is at Nanchang. Local transit There was only one bus line in Jingdezhen before the 1980s, which was from Huang-ni-tou to Nan-men-tou with a total line distance of . In that time, the city had no taxi service and the buses were channel-type bus, it could carry more than one hundred passengers at most at the same time. This kinds of buses were renewed when they were operated to the end of 1990s. Currently, Jingdezhen public buses and taxis are the two main means of transportation within the city. Nearly more than 20 public bus lines crisscross the city and its countryside. Taxis in Jingdezhen are plentiful; fares start at ¥8 for the first