Liangdang County, Longnan City, Gansu Province

Liangdang County Liangdang county belongs to Longnan City, Gansu Province, is located in the southeast of Gansu Province, the northeast of Longnan City. Liangdang was called Gudao and Gudao in ancient times. In the reign of emperor Huiwen of Qin Dynasty, Gudao county was set up. In the Northern Wei Dynasty, Liangdang county was set up in Gudao county. It got its name because of the existence of Liangdang river. After 1985, it was under the jurisdiction of Longnan region and Longnan City. Liangdang county has jurisdiction over 6 towns, 6 townships and 118 administrative villages, with a total area of 1408.73 square kilometers and a total population of 5042900 (2010).

Liangdang county is located in the Qinling mountain area at the junction of Shaanxi, Gansu and Sichuan. It is known as "the shield of Qinlong and the throat of Bashu". The altitude of Liangdang county is between 773-2738 meters. It is a warm temperate continental monsoon climate with abundant light and heat, abundant rainfall and significant difference. There are Qinling takin, clouded leopard, forest musk deer and other rare animals in the territory, and Xiaolongshan National Nature Reserve in Gansu Province. Natural resources include hydropower resources, biological resources, mineral resources, etc. in 2015, Liangdang county's GDP reached 601 million.

Liangdang county is "China's deep breathing town", "national civilized county", "national greening model county", "National Ecological Garden County" and "China's famous green county". Its famous and high-quality products include langyami, Qilixiang, gingko, black fungus, etc. there are liangdangbing memorial hall, Yunping Three Gorges natural scenic area, lingguanxia Zhangguo laodengzhen cave, Heihe nature reserve and other tourist attractions Point.

On September 25, 2018, it won the honorary title of "2018 e-commerce into rural comprehensive demonstration county" of the Ministry of Commerce. In October 2018, the Gansu provincial government issued a notice officially approving Liangdang county to withdraw from the poverty-stricken county sequence. In December 2018, it won the title of the second batch of national ecological civilization construction demonstration cities and counties.

Evolution of organizational system

The origin of the name

Liangdang: the biography of Liu Yuanjing in southern history says, "only Jiangna Liangdang shirt is the name of water"; Yangshui in Volume 19 of Shuijing Zhushu by Li Daoyuan says: "Shu water is southeast, Liangdang water is poured, and water flows from dashanling in Chencang county to southwest, so it's called old way water." The old way: the supplement of the twenty five histories and the explanation of the geographical records of the Han Dynasty said: "therefore, Tonggu is the original work; Dao, Daoye, the three rivers in the south of the county, and the Jialing River in the Northeast; that is, the old way of Shuijing Zhushu, water, like a woman lying on her back, has Daoye according to her hand, so it is called the old way, and the county is named by water."

Historical evolution

Liangdang was the place of Yongzhou in Yugong in ancient times.

During the spring and Autumn period and the Warring States period, Liangdang was inhabited by Di and Qiang.

In the 13th year of emperor Huiwen of Qin Dynasty (312 BC), Gudao county was set up. It has jurisdiction over the whole territory of Liangdang County of Gansu Province, Fengxian County of Shaanxi Province and most of Liuba county. It belongs to Hanzhong county. In the 28th year of emperor Zhaoxiang of Qin Dynasty (279 BC), the county belonged to Longxi County.

In the Western Han Dynasty, in the first year of Yuanding (111 BC), Emperor Wu of the Han Dynasty set up Wudu County in the west of Guanghan Dynasty. Gudao county was changed to Wudu County. The original jurisdiction was divided into Hechi county and Gudao county. Zhandao mountain road in the territory leads to Hanzhong in Sichuan Province. Gaozu of the Han Dynasty attacked King Yong and led his troops out of the old road. He defeated Zhang Han in Chencang. At that time, he called his way of transporting troops the old road, which was one of the ancient Zhandao roads leading from Shaanxi to Sichuan.

In the first year of Han ruziying (8 years), Wang Mang replaced Han Dynasty, changed Wudu County into Leping County, and changed Gudao County into Shanzhi County, belonging to Leping county.

In the Eastern Han Dynasty, Wudu County was restored.

In the Eastern Jin Dynasty, in the sixth year of Yuankang (296) of emperor Huidi of Jin Dynasty, Yang Mao of Qingshui Di of Lueyang seized Qiu chi (in today's Xihe county) and established Qiu Chi state, under the jurisdiction of Gudao county.

In the northern and Southern Dynasties, in 474, Emperor Xiaowen of the Northern Wei Dynasty changed "Gu" into "Gu", and set up Gudao County, lingliangdang county and Guanghua county. The name of Liangdang county was first found in historical records. Yang Guangxiang, the Duke of post Yinping, was stationed in Liangdang, where he had a good command of politics and harmony with people. In the first year of Baoding (561), Emperor Wu of the Northern Zhou Dynasty set up Liangdang County, lingliangdang county and Liangquan County, which successively belonged to Nanqi Prefecture and Fengzhou Prefecture.

In the Sui Dynasty, Emperor Wen of the Sui Dynasty abolished Liangdang County in the second year of kaihuang (582), which belonged to Fengzhou. In the third year of Daye (607), Emperor Yang of the Sui Dynasty changed the prefecture into a county. The county was unified by the county, the Fengzhou was abolished, and the Hechi county (now Hui County) was established, leading Liangdang, Tonggu and Hechi counties.

In 618, the first year of Wude, Emperor Gaozu of Tang Dynasty, Hechi county was changed into Fengzhou, leading Liangquan, Liangdang and Hechi counties.

In the Song Dynasty, in the first year of Qiande (963), Emperor Taizu of the Song Dynasty set up two counties, Liangdang and Liangquan. At that time, silver mining was prominent, and silver metallurgy supervision was added, which was subordinate to Liangdang county. In the first year of the reign of Emperor Taizong of the Song Dynasty (995), Liangdang County moved from danhepu (now in Fengxian County of Shaanxi Province) to Guangxiang town (now in Liangdang county). In the Northern Song Dynasty, the whole country was divided into 15 roads, and the two roads belonged to Qinfeng road.

In Yuan Dynasty, Liangdang county belongs to Nanfeng Prefecture. In 1340, Emperor Shun of the Yuan Dynasty changed nanfengzhou into Huizhou, which belongs to gongchang general yuan Shuai's mansion.

In the Ming Dynasty, Huizhou was established as a county at the beginning of Ming Dynasty, which belonged to gongchang Prefecture together with Liangdang.

In the Qing Dynasty, Liangdang County belonged to Zhili Prefecture of Qinzhou in 1729.

In the Republic of China, Liangdang county is located in Weichuan Road, Gansu Province. In 1927, the system of Dao was abolished and the chief executive of the county was changed to the magistrate of the county. Liangdang county is the fourth administrative supervision district of Gansu Province (the office of the Commissioner is located in Qinzhou District of Tianshui City).

On December 6, 1949, Liangdang declared liberation. On December 14, 1949, the CPC Liangdang County Committee and Liangdang County People's government were established, which is a county under the jurisdiction of Tianshui administrative division office of Gansu Province. In 1951, Tianshui District Office was changed to Tianshui District Commissioner Office, which belongs to Liangdang county. In August 1958, Liangdang county was abolished and Huicheng county was established as Liangdang district. At the end of 1961, Huicheng county was abolished and Liangdang county was restored. In June 1985, Liangdang county was transferred from Tianshui area to Longnan area. In June 2004, Longnan City was set up in Longnan area, which belongs to Liangdang county.

administrative division

Division evolution

In 1996, Liangdang County covered an area of 1380 square kilometers with a population of about 53000. It has jurisdiction over 1 town and 13 townships: Chengguan Town, Yangdian Township, zuozhang Township, Xianlong Township, Yuchi Township, Xinghua Township, zhanerxiang Township, Xipo Township, Zhang Township, Taiyang Township, Yunping Township, Taishan Township, Jindong Township and Guangjin township. The county government is located in Chengguan town.

In 2003, zhanerxiang Township and Xipo Township were abolished and zhanerxiang town and Xipo town were established.

By the end of 2008, Liangdang county had an area of 1374 square kilometers and a rural population of 9800 households and 38100 people. It has jurisdiction over 3 towns and 9 townships: Chengguan Town, zhanerxiang Town, Xipo Town, Yangdian Town, Zuojiang Town, Xianlong Town, Yuchi Town, Xinghua Town, Zhang Town, Yunping Town, Taishan town and Jindong Town, 118 administrative villages and 386 villager groups.

In 2014, Chengguan town was listed as a national key town. In June 2016, Yangdian township was set up as a town. In December 2016, Xianlong Township and Yunping Township were set up as towns.

Zoning details

By the end of 2016, Liangdang had jurisdiction over 6 towns, 6 townships and 118 administrative villages

Towns: Chengguan Town, zhanerxiang Town, Xipo Town, Yangdian Town, Xianlong town and Yunping town;

Township: Yuchi Township, Xinghua Township, Zhang Township, Taishan Township, Jindong Township, zuozhang township.

geographical environment

Location context

Liangdang County, located in the southeast of Gansu Province, is located in the Qinling Mountains at the junction of Shaanxi, Gansu and Sichuan. It is adjacent to Tianshui City in the north, Hui County in the West and Baoji City and Hanzhong City in Shaanxi Province in the southeast. It is located between 106 ° 11 ′ - 106 ° 35 ′ E and 33 ° 30 ′ - 34 ° 15 ′ n. The county is 35 kilometers wide from east to west and 85 kilometers long from north to south, with a total land area of 1408.73 square kilometers.

Geomorphology and topography

Liangdang county is high in the north and south, low in the middle, horseshoe shaped, with an average altitude of 1400 meters, the highest altitude of 2738 meters, and the lowest altitude of 773 meters.

Yunping Township and zhan'erxiang Township in the South belong to the northern margin of Qinling Mountains, and zhangjiaxiang Township and zuojiaxiang Township in the north belong to the southern slope of Qinling Mountains, with an average altitude of about 1500 meters. In the county, there are many mountains, many valleys and strange peaks. Toumaju peak, located in the north of zhangjiaxiang Township and the junction of Shaanxi and Gansu provinces, is 2738 meters above sea level, which is the highest peak in the county.

Chengguan, Yangdian, Xipo, Xinghua, Yuchi, Xianlong and other towns in the central part belong to the marginal zone of Huicheng basin, which is a hilly and rocky valley with an average altitude of about 1100 meters. The junction of Yongning River and Jialing River is 773 meters above sea level, which is the lowest point in the county.

climate

Liangdang county is a warm temperate continental monsoon climate, rich in light and heat, abundant rainfall, the difference is significant. Winter is dry and cold without severe cold, summer is hot and humid without intense heat. In most areas, the annual average temperature is about 10-11 ℃, the annual sunshine is about 2000 hours, the accumulated temperature ≥ 0 ℃ is 4241.2 ℃, the active accumulated temperature ≥ 10 ℃ is 3649.4 ℃, the rainfall is 600-700 mm, the mountain area is slightly more, and the frost free period is about 190 days. There is a significant difference in climate latitude. The altitude of the middle shallow hills is low, the annual precipitation is 700mm, the frost free period is 195 days, and the sunshine condition is good. The climate of the high altitude areas in the South and north is cold and wet, with annual precipitation of more than 800 mm, average temperature of about 8 ℃, frost free period of 160 days, light and temperature conditions in the southern Zhongshan area are inferior to those in the central, but there are more drought and flood disasters.

hydrology

Liangdang county has one river, seven rivers and eight water systems. The main rivers are Jialing River, Hongya River, Liangdang River, Honghe River, Yunping River, Wenjiang River, guangjinba River, Yongning River and Guanjiang River, with an annual runoff of 33.772 million cubic meters.

natural resources

water resource

The total amount of water resources in Liangdang county is about 114.0036 million cubic meters, and the per capita possession is 22932.4 cubic meters. The surface self-produced water is 337.726 million cubic meters. If calculated by region, the water resources in the northern mountainous area is 138.5627 million cubic meters, accounting for 41.02%; the central area is 112.4156 million cubic meters, accounting for 33.02%

Chinese PinYin : Gan Su Sheng Long Nan Shi Liang Dang Xian