Anning City, Kunming City, Yunnan Province

Anning City, a county-level city directly under the central government of Yunnan Province, is managed by Kunming city. Located 32 kilometers southwest of Kunming City, it is an important transportation town leading to 8 prefectures in western Yunnan and directly connected with Myanmar via Wanding. It is connected with Xishan District in the northeast, Jinning District in the southeast, Yimen County and Lufeng County in Yuxi City in the west, with a total area of 1301.81 square kilometers and an average altitude of 1800 meters. In 2019, the average temperature is 16.9 ℃, the annual rainfall is 749.1 mm, and the sunshine time is 2260 hours. In 1995, the county was removed and the city was established. Anning City has 9 sub district offices, 63 villagers' committees and 36 community residents' committees, with a permanent resident population of 389000.

Anning has a long history, known as "tangchuan treasure land, Lianran Golden Square". Anning has superior geography and developed transportation. The national highway 320 is directly connected to Myanmar, the Kun'an and an'chu expressways, and the Chengdu Kunming railway pass through the territory. The construction of an'an-jin Expressway and the Kunming Guangzhou railway double track has started, and the asphalt road is directly connected to the administrative villages. Anning, 32 kilometers away from Kunming, is an important transportation town connecting Kunming to eight prefectures in western Yunnan and directly to Myanmar via Wanding.

Since 2019, it has been rated as one of the top 100 counties and cities in China's comprehensive strength in 2019, one of the top 100 districts in China's new urbanization quality in 2019, one of the top 100 counties and cities in Western China in 2019, one of the top 100 counties and cities in China's business environment in 2019, one of the top 10 counties (cities) in China's investment potential in 2019, and one of the pilot units for the construction of the national rural governance system. In December 2020, the Chinese Academy of Social Sciences issued the national top 100 comprehensive competitiveness of county economy, ranking No. 43 in Anning.

Evolution of organizational system

In the second year of Yuanfeng reign of Emperor Wu of Han Dynasty (109 BC), the Western Han Dynasty set up Lianran county and salt officer here.

According to the annals survey of Anning County: "in 618, Anning Mu Niu, a native of Dongchuan, came out of Yanjing, and changed Lianran County into Anning Prefecture, which was close to anyin, and changed Anning.

Tang Wude four years (AD 621), known as Anning county.

Yuan to Yuan 12 years (1275 AD), known as Anning state.

In 1913, it was renamed Anning county.

On April 20, 1950, Anning County People's government was established.

In October 1956, Anning county was changed to Anning District of Kunming city.

In September 1959, it was renamed Anning county.

On October 13, 1995, with the approval of the State Council, Anning county was abolished and Anning City at the county level was established. Anning City was directly under the central government of Yunnan Province and administered by Kunming city.

administrative division

In 2019, Anning City has 9 sub district offices, 63 villagers' committees and 36 community residents' committees, with 338 villagers' groups and 174 residents' groups.

geographical environment

Location context

Anning is located in the western suburb of Kunming, 28 kilometers away from the main urban area of Kunming. It is between 102 ° 8 'e to 102 ° 37' e and 24 ° 31 'n to 25 ° 6' n. It is 66.5 km long from north to South and 46.4 km wide from east to west, covering a total area of 1301 square kilometers. It borders Xishan District in the East and northeast, Lufeng County in the West and northwest, Jinning County in the South and Southeast, and Yimen County in the southwest.

geology

Anning is located in the western margin of the Yangzi zhungedi first-order structure, which belongs to the central and southern segment of the Kangdian axis second-order structural belt. It is adjacent to Wuding Yimen Hedi tertiary structure in the west, and is a part of Kunming partition tertiary structural belt. The exposed strata are: Mica slate, limestone, dolomite and sandstone of the Mesoproterozoic Kunyang group, distributed in Wangjiatan heifengdong, lulianbaiyidian, Zhengjiagou, DALONGDONG and Xiaoying of yiliuxiang, etc.

The Upper Proterozoic Sinian system is the most developed in the city. The Upper Proterozoic dolomite, dolomite limestone and quartz sandstone are gray to gray dolomite with shale. They are widely distributed in the north of Malutang, Wenquan Town, Chengjiang village and the west of xiaoguidian, in the south of yangtianchong, Lulian Town, in the Southeast of Baideng, Xianjie Town, bolowan, Caopu Town, dingtouwan, Shankou village and Shajia, Bajie town Tian and Wopu are in the area of mu.

Paleozoic limestone, dolomite, sandy shale, basalt, phosphorite and phosphorous sandstone are distributed in xiaquanfu of Caopu Town, Hongqiang village to Shankou village and Yanta village of Xianjie Township, shajiatian of Bajie Town, caoxisi of Wenquan Town and Xiyuan of Xianjie township.

Mesozoic sandstone, conglomerate, calcareous shale and purplish red mudstone are distributed from Anning chemical plant to Hongxing farm, Guangming reservoir, Lengshuitang, south of Caopu Town, Qilin village to Lianran laodianfang Tongcheba, and Jinma Hospital of yiliujie township.

Cenozoic brown red conglomerate, siltstone, mudstone, clay rock intercalated with carbonaceous mudstone, residual slope red soil, gray brown clay. Among them, the Tertiary strata are mainly distributed in the areas from Kunming Steel station to Pingdingshan, refractory plant, hejiaying and jiancaoying of Bajie town. Quaternary strata are widely distributed in dam areas, upstream basins and so on.

The structure of the area is complex. There are two north-south faults on the East and west sides, which are clamped by Puhe fault and Yimen fault. The north and south sides are controlled by the east-west and north-east faults, which make the faulted basins develop, especially the small-scale fold structures. The largest fold structure is located in the heifengdong anticline in the central and southern part of China. Its axis extends from east to west through mingyihe township to Kunyang. The Upper Proterozoic Sinian strata are exposed on the axis, and the Paleozoic strata are on the two wings, forming a wide and gentle extensional anticline. The fault structural line is mainly distributed in NE direction, forming different strike fault zones and basins in Anning. Affected by the fault activity, hot springs, collapses and landslides are relatively developed in the area.

landforms

Anning terrain is high in the southeast and low in the northwest. There are three Intermountain basins, Bajie, Lianran and Ludao, and the rest are mountainous and semi mountainous areas. Heifengdong in the southwest of the city is the highest point of Anning City, with an altitude of 2617.7 meters. The lowest point is in the Honghe River Basin of Wangjiatan village committee of Caopu Town, and the Lujiashan River Valley is 1680 meters above sea level.

The terrain in the area is not undulate, and the basin and ridge are alternated. Controlled by the structure, the Proterozoic and Mesozoic strata are widely distributed. The Paleozoic strata are not fully developed, and the Cenozoic strata are distributed in river valleys and valleys. The main geomorphic types are as follows:

Tanglangchuan erosion landform: including Tanglangchuan, Lianran basin and the area from Ludao to qinglongsi, the terrain is gentle and slightly undulating.

Bajie middle mountain hill erosion valley basin landform: the local landscape area includes Lianran, Xianjie, mingyihe, Qinglongshao, anfengying and shaojiuyi belt, with an altitude of 1900-2000 meters and a slope of less than 10 ° and flat terrain. It is the main industrial and agricultural distribution area in Anning.

Tectonic landform: it is mainly distributed in Taiping Tuomu area, including Heifeng cave, Xiaomu mountain, etc., with a relative elevation difference of 500-1000m and a slope of more than 35 degrees.

Zhongshan shallow cutting "V" type valley basin landform: mainly distributed in Wenquan, molande, Machang, Jiudu River and beichong, with an altitude of 1800-2200m.

climate

Anning is a low latitude and high altitude area in the middle subtropics with small seasonal temperature difference and distinct dry and humidity. The annual average temperature is 14.9 ℃, the extreme maximum temperature is 31.5 ℃, and the extreme minimum temperature is - 7.8 ℃. The annual average precipitation is about 1000.5mm, the monthly maximum rainfall is 208.3mm, and the daily maximum rainfall is 153.3mm. The rainfall is mainly concentrated in May to September. The annual sunshine hours are 2327.5 hours and the annual evaporation is 1856.4 mm. The maximum wind speed is 40m / s, mostly southwest.

hydrology

Rivers in Ningxia belong to two major water systems, namely Jinshajiang River system and Honghe River system. The Jinshajiang River system covers an area of 1206 square kilometers, and the Honghe River system covers an area of 115 square kilometers.

Main rivers of Jinsha River System in Yangtze River Basin

Tanglangchuan: Tanglangchuan originates from Dalong cave at the foot of Longtan mountain, southwest of Yiliu township. It flows through Yiliu Township, Bajie Town, mingyihe Township, Xianjie Township, Lianran Town, urban area of Anning City, Wenquan Town and Qinglong Town, leaving the country near Malutang of Qinglong Town. The whole drainage area is 4410.5 square kilometers, of which the flow in Anning City is 52.8 kilometers, the drainage area is 1206 square kilometers, and the annual runoff is 780.579 million cubic meters. In Anning, except Jiudu River in Honghe River Basin, all rivers in Yangtze River Basin flow into Tanglangchuan.

Mingyi River (also known as Bajie River): it originates from Bailong mountain in Jinning County (one branch originates from DALONGDONG, yiliujie township), and flows from south to north through yiliujie, Bajie, Mingyi River and Xianjie. In shuangcun of mingyihe Township, there is the river of crahai, in dayuanmo of Xianjie Township, there is the river of Xianjie, and finally flows through tongxianqiao of Lianran town to Tanglangchuan. The whole basin covers an area of 908 square kilometers, including 71 kilometers of flow in Anning, 588 square kilometers of runoff and 89 million cubic meters of annual average runoff.

Shuanghe River: originated in Jinning County, flows into Chemuhe reservoir and then flows into Mingyi river. The whole basin area is 159 square kilometers, including 108.9 square kilometers in Anning County, with an average annual water yield of 28.14 million cubic meters.

Maliao River: it originates from qingshanyakou, Xishan District, and joins with other two tributaries to join Tanglangchuan near dahuangtang, Lianran town. The total drainage area is 103 square kilometers, the drainage area in Anning City is 84 square kilometers, the flow is 13.65 kilometers, and the annual average runoff is 16.7 million cubic meters.

Xianjie River: it originates from laoyangqing, flows through xiaoqingkou and yuezizhuang reservoirs, and flows into Mingyi river at the end of Dayuan, with a flow of 71 km, a drainage area of 88.85 square kilometers, and an average annual runoff of 15.726 million cubic meters.

Shahe River: it originates from Qipan mountain in Xishan District, flows through Tuanjie Township of Xishan District, enters into the Guangming reservoir, and then flows into Tanglangchuan through Taiping Town and Luobai village of Lianran town. The drainage area is 97 square kilometers, of which the drainage area in Anning is 42.9 square kilometers, the flow is 14.4 kilometers, and has been flat for many years

Chinese PinYin : Yun Nan Sheng Kun Ming Shi An Ning Shi