Yiyuan County, Zibo City, Shandong Province

Yiyuan County Yiyuan County, subordinate to Zibo City, Shandong Province, is located in the middle of Shandong Province. It is adjacent to Linqu County of Weifang City in the East, Yishui County in the southeast, Laiwu district and Gangcheng District of Jinan City in the west, Xintai City of Tai'an City in the southwest, Mengyin County of Linyi City in the south, Boshan District and Zichuan District in the north, with a total area of 1636 square kilometers. It has 10 towns and 2 streets under its jurisdiction, with a total population of 575000 (2019) Year).

Yiyuan County is an old revolutionary base area, which enjoys the policy support of Yimeng old revolutionary base area. It is the birthplace of ancient human beings in Shandong, the national tourism demonstration area, the advantage area of agricultural products with Chinese characteristics, the national civilized county, the national key ecological function area, the national sustainable development experimental area, the revolutionary cultural relics protection and utilization area, and the national export food and agricultural products quality and safety demonstration area.

In 2019, Yiyuan County's GDP will reach 26.028 billion yuan, an increase of 4.86% over 2018. Among them, the added value of the primary industry was 3.674 billion yuan, an increase of 2.24%; the added value of the secondary industry was 10.664 billion yuan, an increase of 2.31%; the added value of the tertiary industry was 11.690 billion yuan, an increase of 8.42%.

Historical evolution

In the Xia Dynasty, Yiyuan was under the jurisdiction of Yanzhou.

In the Shang Dynasty, Yiyuan belonged to the people.

In the Zhou Dynasty, Yiyuan was under the jurisdiction of the state of Lu and the state of Ji.

In the Qin Dynasty, Yiyuan belonged to Ju county, Langya county.

In the Han Dynasty, Yiyuan was located in Gaixian County, Taishan County, Yanzhou.

In the Eastern Han Dynasty, Gaixian county was changed to Langya county.

In the Three Kingdoms, Yiyuan is located in Dongan Town, Dongan County, Xuzhou.

In the Sui Dynasty, in the fourth year of kaihuang (584), Dong'an County was established by abolishing Dong'an County. Most of Yiyuan belonged to Dong'an County of Langya county. Later, Dong'an County was abolished and Yishui County was established, which belonged to Yishui County. In the west, it belonged to Ying County of Lu County. In the southwest, it belonged to Xintai County of Tai'an County. In the northwest, it belonged to Zichuan County of Qi county. In the north, it belonged to Linqu County of Beihai county.

In the Tang Dynasty, most of Yiyuan belonged to Yishui County. In the eighth year of Zhenguan (634), Juzhou was abandoned and changed to Yishui County of Yizhou; in the north, it belonged to Linqu County of Qingzhou. In the Song Dynasty, in the Northern Song Dynasty, most of Yiyuan belonged to Yishui County, Yizhou on Jingdong East Road, Zichuan County, Zizhou in the northwest, Linqu County, Qingzhou in the north and Xintai County, Tai'an in the southwest.

In the Southern Song Dynasty, most of Yiyuan belonged to Shandong East Road, which was still under the jurisdiction of Yishui County in Juzhou, Linqu County in Qingzhou and Zichuan County in Zizhou. The southwest is Xintai County, Taian Prefecture, Shandong West Road.

In the Yuan Dynasty, most of Yiyuan belonged to Yishui County of Juzhou, Linqu County of Qingzhou in the north, Xintai County in the southwest, and Mengyin County in 1313.

In the Ming Dynasty, it still belonged to the above three counties.

In the Qing Dynasty, in the eighth year of Yongzheng (1730), Yishui and Mengyin counties were changed to Juzhou, Linqu still belonged to Qingzhou, and Yiyuan still belonged to the above three counties.

During the period of the Republic of China, Yiyuan still belonged to Yishui County, Mengyin County and Linqu County.

From 1940 to 1944, Yiyuan belonged to Xinmeng, Bolai, Yibei, Yizhong, Mengyin, Xintai, Yishui and Linqu counties.

In 1944, Yiyuan County was established under the central Shandong administrative office of the Communist Party of China.

In 1945, Yiyuan County was subordinate to Yimeng special office of central Shandong executive director's Office (renamed central Shandong executive office in 1948).

In May 1950, Yiyuan County was changed into Yishui district.

In August 1953, Yishui district was abolished and Yiyuan County was changed to Linyi district,

In July 1978, Yiyuan County was subordinate to Linyi district administrative office.

On January 1, 1990, Yiyuan County was assigned to Zibo City.

administrative division

Division evolution

In May 1962, Zhangjiapo commune was founded in the northeast of Dongli commune.

In May 1965, Xujiazhuang commune was incorporated into Huangzhuang district. Shiqiao commune was merged into Yuezhuang district and Zhangjiapo District, Jiuhui commune into Nanma district. Zhongzhuang commune was merged into Tangshan District and Yanya district.

In May 1966, Jiuhui commune separated from Nanma district and merged with Shandong Machinery Factory No.1 and No.2 into Tumen district.

In 1971, Xujiazhuang, Zhongzhuang and Shiqiao commune were added.

Zoning details

By June 2020, Yiyuan County has jurisdiction over Lishan street, Nanma street, Dongli Town, Lucun Town, Yuezhuang Town, Xili Town, DAZHANGZHUANG Town, Zhongzhuang Town, Zhangjiapo Town, Yanya Town, Shiqiao Town and nanlushan Town, a provincial economic development zone and 643 villages (communities). With a total population of 575000, the county government is stationed at 61 Zhenxing road.

geographical environment

Location context

Yiyuan County is located in the middle of Shandong Province, the southernmost tip of Zibo City, Yimeng mountain. It lies between 117 ° 54 '- 118 ° 31' e and 35 ° 55 '- 36 ° 23' n, adjacent to Linqu County of Weifang City in the East, Yishui County in the southeast, Laiwu district and Gangcheng District of Jinan City in the west, Xintai City of Tai'an City in the southwest, Mengyin County of Linyi City in the south, Boshan District and Zichuan District in the north, with a total area of 1636 square kilometers. It is 63.6 km long from east to west and 52.2 km wide from north to south.

topographic features

Yiyuan County is located in the middle of Luzhong uplift area of luxitai anticline, which straddles three fifth order structural units, namely, Lushan fault uplift, Yishan fault uplift and jinxingtou fault block uplift. In the county, the strata are relatively complete, the structure is complex, the magmatic activity is weak, and the magmatic rocks are not very blind. Due to the control and influence of geological structure, lithology, rivers, climate and other internal and external forces, the landform in the territory is characterized by undulating mountains, crisscross gullies, and the terrain inclines from northwest to Southeast. The main peak of Lushan Mountain in the northwest is 1108.3 meters above sea level, and the Yihe River Valley in the southeast is 180 meters above sea level. The area of medium, low mountains and hills accounts for 99.3%, which is pure mountainous area.

hydrology

The terrain of Yiyuan County is high, and there is no passenger water passing through. Yihe River, Mihe River and Wenhe river all originate in the territory, forming three water systems, of which Yihe River system is the largest, belonging to Huaihe River Basin.

The main river of the Yi River system is the Yi River, which flows from Tianzhuang reservoir to the southeast and from the southwest of Hanwang township to the county. It is 84.6 km long, with the widest riverbed of 800 meters and the narrowest riverbed of more than 100 meters. The drainage area covers 15 townships (towns), with a total area of 1451 square kilometers.

Tanglang River, a tributary of Yi River, originates from Sanfu mountain in the southwest of Lushan Mountain. It flows southeast through Tumen town and Nanma Town, passes through the county town from north to south, and joins Yi River in the south of the city. It is 27 km long and has a drainage area of 187 square kilometers.

climate

Yiyuan County is a warm temperate monsoon regional continental climate with four distinct seasons. In spring, it warms up late and quickly, with less wind and rain. Summer is hot and humid, with occasional drought. Autumn is cool, dry and rainless. It's cold in winter with little rain and snow. Due to the influence of mountainous terrain, the microclimate is obvious and the threat of drought is serious.

natural resources

land resource

According to the soil survey in 1984, Yiyuan County has a total land area of 2603800 mu. Among them, the cultivated land area is 708800 mu, accounting for 27.22% of the total area of the county; the garden land is 96600 mu, accounting for 3.71%; the forest land is 475800 mu, accounting for 18.27%; the sparse forest grassland is 35000 mu, accounting for 0.14%; the residential land and industrial and mining land are 103100 mu, accounting for 3.96%; the water area is 73900 mu, accounting for 2.84%; the traffic land is 14500 mu, accounting for 0.56% National defense land is 2300 mu, accounting for 0.09% of the total area; barren hills and wasteland is 1117000 mu, accounting for 42.9% of the total area; bare rock land is 8500 mu, accounting for 0.32% of the total area.

water resource

According to the survey results of agricultural resources in Yiyuan County in 1985, all the surface water in Yiyuan County comes from atmospheric precipitation. The average annual precipitation of the county is 1290260000 cubic meters, and the runoff is 508150000 cubic meters. Accounting for 39.38% of rainfall yield. The available capacity is 80.22 million cubic meters, accounting for 16% of the runoff. The storage capacity of the project is 73.572 million cubic meters, accounting for 14.5% of the runoff.

The distribution of groundwater in Yiyuan County is very uneven. The water rich area is only 306.8 square kilometers, accounting for 18% of the total area of the county, and concentrated in Lucun, Nanma, Yuezhuang and both sides of Yihe River. The surface water and groundwater are bicarbonate type, with pH value between 7.3-8.2, neutral and weak alkaline reaction, salinity between 116-508 mg / L and total hardness between 3.3-10.8 mg / L. they are soft water, suitable for human and livestock drinking and farmland irrigation.

mineral resources

There are many mineral resources in Yiyuan County. More than ten kinds of iron, gold, coal, bauxite, limestone, gypsum, potash feldspar and calcite have been identified. The ore body is stored at the top of yanlingguan formation of Taishan Group, belonging to Archaean hornblende quartz iron bearing structure and sedimentary metamorphic deposit.

The orebodies and surrounding rocks in Yiyuan County occur in monoclinic form and are distributed in NW-SE direction, which is consistent with the regional tectonic line. The thickness of ore bearing zone is 14.5m in minimum, 190m in maximum and 80m in average. The mineral composition of the ore is mainly magnetite, hematite, limonite and a small amount of chalcopyrite and pyrite. Grade: tfe36%, sfe29%. The total reserves are more than 200 million tons.

Biological resources

There are about 300 species of wild animals and terrestrial vertebrates in Yiyuan County, including about 40 species of mammals. Distributed in the county are: hedgehog, bat, Fu Wing, water rat, big mouse, house mouse, Apodemus agrarius, rabbit, weasel (weasel), red fox (skin), badger, chrysanthemum bat. There are: Wolf, jackal (red wolf), jackal cat (Beaver), Fox and so on. Amphibians and reptiles include Bufo bufo gargarizans, Bufo raddei, frog, gecko, soft shelled turtle, Spiraea rufous, Agkistrodon halys, flying snake on grass, viper, lizard, etc.

population

By the end of 2019, Yiyuan County has a total population of 576000, with a total birth population of 1

Chinese PinYin : Shan Dong Sheng Zi Bo Shi Yi Yuan Xian