Hezuo (Zö) city (; ) is the administrative seat of the Gannan Tibetan Autonomous Prefecture (TAP) in southern Gansu province in Northwestern China. It is home to the Gêndên Qöling (Zö Gönba) and its Milaraiba Tower, the Langshangmaio Temple, and a mosque. There is a breed of pig, the Zoi Swine (a.k.a. Silverweed Pig), from here and the whole Gannan TAP also. Name The Tibetan name "Zö" is pronounced Dzoi in Standard Tibetan and pronounced Hdzoi/Hdzu in local dialect. The Chinese name before the 1950s was "Heicuo", a transliteration of the Tibetan name. In 1956, the name was changed to the similar-sounding "Hezuo", meaning "cooperation", which reflected the desire to bring unity and harmony to Hezuo. History Originally a rare populated wetland, mass city-construction began in the 1950s. During 1953, the Gannan Tibetan Autonomous Prefecture was created, and the town of Hezuo (not yet a city) was part of it. In May 1956, Hezuo was named by a provincial government employee. During June 1996, the government announced the establishment of Hezuo, and on January 1, 1998, the city was officially established. Population The total population of Hezuo city in 2010 was 81,000. The rural population was 35,000, about for 43% of the total population, and the 57% of the urban population was 46,000. 54% of the population is Tibetan, which is about 44,000. The city's permanent population was 95,000 at the end of 2017. Urban population is 51,000, the rate of urbanization was 57.10 percent. The natural population growth rate was 9.57 percent. Birth rate was 15.09 percent. Population mortality rate was 5.52 percent, 0-14 year old population is 19,500, and the population of 15-64 years old is 67,200. At the end of 2019, the registered population of Hezuo City was 93,727. Nationalities There are Tibetan, Han, Hui, Salar, Dongxiang, Baoan, Manchu, Tu, Mongolian, Yugu, Koreans and other ethnic groups in Hezuo city. Natural resources In Hezuo city, yaks and Tibetan sheep are the major animals, with total of about 300,000, about 250,000 yaks and Tibetan sheep remain at the end of year. Beside two major animal, Hezuo also have a famous animal called the Juema Pig (蕨麻豬). The major trees in Hezuo are fir, spruce, pine, Huashan pine, poplar, birch, cypress, and willow. Shrubs in Hezuo city including sea buckthorn, rhododendron, cypress, plum and catalpa. Highland barley, spring wheat and rapeseed are the normal staple food people eat. Economic