The largest city in China.

Naqu is a prefecture-level city in Xizang Autonomous Region, located in northern Tibet and the hinterland of Qinghai-Tibet Plateau. It is the source of the Yangtze River, Nujiang River, Lhasa River and Gong Yi, and the "North Gate" of Tibet. Naqu has 1 1 counties (districts), namely, Seni District, Amdo County, Nie Rong County, Ru County, Jiali County, Suo County, Baqing County, Shenzha County, Bango County, Nima County and Shuanghu County, with a land area of 39.18/kloc.

"Naqu" was named after Naqu River (the upper reaches of Nujiang River) in China, which was translated into "Heihe River" in the old days. At the end of Ming Dynasty and the beginning of Qing Dynasty, it was called Karawusu in Hoxute Mongolia. In Qing Dynasty, it was a full semantic translation of the Tibetan place name "Naqu".

Urban location conditions of Naqu;

1, the average altitude of Naqu city is about 4450 meters. Tanggula mountain area in the north of Naqu area is a typical plateau mountain with irregular oval terrain. The eastern part of Naqu City belongs to plateau and mountainous area, and the terrain inclines from northwest to southeast, and the altitude gradually decreases.

2. The intersection of the northern Tibetan plateau and the eastern Tibetan alpine canyon in the south of Naqu belongs to the plateau hills.

3. Naqu belongs to the sub-cold climate zone, with high altitude, insufficient heat, cold and dry climate, and the oxygen content is only half of the sea level.

4. The northern Tibetan Plateau is one of the regions with the worst climatic conditions in Tibet, and it is a typical sub-cold zone.

5. Cold and anoxic, dry climate, large temperature difference between day and night, windy weather, annual average temperature of -0.9℃ to -3.3℃, annual relative humidity of 48~5 1%, annual average rainfall of only 100 ~ 200mm, and annual sunshine hours of 2852.6 ~ 28865438+.

6. Every year from 165438+ 10 to March of the following year, it is a dry and windy period in northern Tibet. Once it snows, it will easily turn into a snowstorm. During this period, the climate is dry, the temperature is low, and the oxygen-deficient sandstorm is large and lasts for a long time.

July, May and September are relatively warm, which is the golden season of grassland. The climate is mild and the weather is beautiful, and the rainfall accounts for 80% of the whole year. The growth period of green plants is about 100 days, all of which are concentrated in this season.

The above contents refer to Baidu Encyclopedia-Naqu City.