The specific situation and introduction of meigu county, Liangshan Prefecture, Sichuan Province

Meigu county is located in the southwest of Sichuan Province, the northeast of Liangshan Yi Autonomous Prefecture, and the west foot of Huangmaoling in Daliangshan. Geographical coordinates are10253'-10321'east longitude and 28 02'-28 54' north latitude. The county borders Leibo County in the east, Yuexi County in the west, Zhaojue County in the south, Ebian Yi Autonomous County in the north, Ganluo County in the northwest and Mabian Yi Autonomous County in the northeast. There are Dafengding National Nature Reserve, Nalong Scenic Area, Longtou Mountain and other scenic spots. Physical geography county is 94.8 kilometers long from north to south and 46.4 kilometers wide from east to west. The actual jurisdiction area of the county is 273 1.6 square kilometers, and the cultivated land area is 243,000 mu. The rural population occupies cultivated land 1.69 mu. The county has jurisdiction over 8 districts, 1 town, 44 townships, 29 1 village and 1.475 villagers' groups. 34,276 households 15 1024 people, including Yi people1466,449 people, accounting for 97.1%of the total population; 4346 Han people, accounting for 2.88%; Hui, Mongolian, Miao, She, Tibetan and other 29 ethnic groups (all urban population), accounting for 0.02%. The population density is 55.29 people per square kilometer. Bapu Town, the resident of County People's Government, is located at east longitude 103 07', north latitude 28 19', with an altitude of 2082 meters, and is 170 kilometers away from Xichang City, the resident of Liangshan Yi Autonomous Prefecture People's Government. From the Spring and Autumn Period to the Qin and Han Dynasties, Meigu belonged to Du Qiong. In the sixth year of Emperor Gaozu's Ding Yuan (BC 165438+ BC 0 1), Beishui County was established on the Meigu River, which governed the Meigu area and belonged to Yueguo County. During the Qi and Liang Dynasties, Beishui County was abolished, and Meigu was a Wa state. Sui and Tang Dynasties belonged to Yue County. From the 14th year of Xian Tong, Tang Yizong (873) to the end of Song Dynasty, Meigu was under the jurisdiction of Adu Department and Masha Department of Yi people. From Yuan Dynasty, Ming Dynasty to early Qing Dynasty, Meigu was under the jurisdiction of Li Li, Martha and Azhuo Tusi respectively. During the reign of Qianlong and Jiaqing in Qing Dynasty, the chieftain was driven away by the black Yi families, and the Meigu area was divided and ruled by the black Yi families. In the second year of Xuantong in Qing Dynasty (19 10), Xichang County was located in Zhaojue County, and the middle, south and west of Meigu belonged to Zhaojue County, and the east and northeast belonged to Leibo County and Mabian County respectively. However, all the leading counties did not set up political organs in China, but were actually ruled by the family in black. During the Republic of China, it was still divided and ruled by various black Yi families. 1952 On April 30th, Meigu County was established, covering the eastern and southern parts of Meigu, and Jiagu was under the jurisdiction of the county. 1On May 24th, 956, Hongxi County was established, which was under the jurisdiction of the northern part of Meigu, and the county belonged to Yi Guojue. Both counties belong to Liangshan Yi Autonomous Prefecture in Sichuan Province. 1On June 20th, 959, Hongxi County was merged into meigu county, and the county was under Bapu's jurisdiction, and its affiliation remained unchanged. Meigu is located at the intersection of Hengduan Mountains in the southeast of Qinghai-Tibet Plateau and the southwest edge of Sichuan Basin, with undulating mountains and rivers. The mountains such as Dafengding, Huangmaoling, Lianzhaguoe, amit Luo and Wa Houneng are located in the east, west and north of the county, and the terrain is inclined from north to south. The highest elevation in the northeast is 4042 meters, and the lowest elevation in the southeast is 640 meters. The territory belongs to the low latitude plateau climate, with obvious three-dimensional climate and distinct four seasons. The annual average temperature is 1 1.4℃, and the annual sunshine is 1790.7 hours. There is abundant rainfall, with an average annual precipitation of 8 14.6mm, but the precipitation is more in the north and less in the south, with uneven distribution. Winter is as long as 135 days, and the annual average frost period is 125 days. There are frequent natural disasters in the territory, mainly hail, rainstorm, debris flow, drought, cold wave frost and low temperature. Except for Tertiary and Carboniferous, all other strata in the county are exposed, but Sinian is not exposed. Triassic and Jurassic in Mesozoic are the most widely exposed areas. There are many kinds of underground mineral resources, among which basalt, iron ore, coal, copper ore, limestone, gypsum, sulfur ore, bauxite and crystal stone have been preliminarily explored and utilized. Soil type 17, mainly yellow brown soil, dark brown soil, purple soil and meadow soil. There are unique water resources in the county. There are rivers, gullies 159 in the county, with a total length of 287 kilometers. The Wahou River in the northeast flows into mabian river, belonging to the Minjiang River system, with a total length of 45 kilometers; Meigu River (including the downstream Liutong River) flows into Jinsha River from north to south, with a total length of 142.5 km. The annual runoff of rivers in the county is 2.9 billion cubic meters, the theoretical hydropower reserves are 9 1.0 1.000 kilowatts, and the exploitable capacity is 578,200 kilowatts. The Meigu River basin has the best geological and topographic conditions, and the upstream is the best reach for building the leading reservoir, while the downstream natural gap is concentrated. The gradient from Erqi Township to Liu Hong Township 13km reaches as high as 30.5‰, and the concentration of hydropower resources is the highest in the whole river, with broad prospects for hydropower development. Forest resources are very rich. There are more than 50 species of natural tree species/kloc-0, belonging to 50 families and 65 genera. The main timber trees are Chinese fir, pine, poplar, birch and alder. 1990 woodland area 109 1500 hectares, accounting for 39.96% of the total land area; The forest area is 39,400 hectares, and the standing stock is 64 1.4 1.000 cubic meters. The forest coverage rate of the county is 14.5%. There are many kinds of wild animals and wild medicinal materials. There are 62 families 187 species of wild animals. There are 5 species of national first-class protected animals, such as giant panda, and 27 species of second-class protected animals, such as macaque, red panda and golden pheasant. Wild medicinal materials 103 species, among which Gastrodia elata, Fritillaria, Cordyceps are precious medicinal materials. Located in the northeast of the county seat, Sichuan Meigu Dafengding Nature Reserve has become a "refuge" for tertiary or older creatures because of its special geographical location and superior natural environment. There are 29 species of rare animals, such as giant pandas, and more than 30 species of Davidia involucrata, Ginkgo biloba, Cercidiphyllum japonicum and Taxus chinensis in relict plant. Nature reserves are called "precious biological gene bank" by researchers. It is a well-preserved natural museum and is known as the "green pearl"