Hetao street, Qingdao high tech Industrial Development Zone, Qingdao City, Shandong Province

Hetao Street

Hetao street is located in the west of Chengyang District, Qingdao City, on the North Bank of Jiaozhou Bay, at 120 ° 09 ′ E and 36 ° 14 ′ n. It is adjacent to Shangma street in the East, Jiulong street in Jiaozhou City in the west, Jiaodong street in the northwest, Ligezhuang town in the north and Jiaozhou Bay in the south. The maximum horizontal distance from east to west is 9.4 km, the maximum vertical distance from north to south is 14.2 km, the land boundary is 41.63 km, the coastline is 15.95 km, and the total area is 82.7 square kilometers. It has jurisdiction over 18 administrative villages.

In 2003, the gross domestic product was 1160 million yuan, including 455.1 million yuan for the primary industry, 549.3 million yuan for the secondary industry and 155.6 million yuan for the tertiary industry.

Historical evolution

In Hetao region, as early as 4000 years ago, the ancestors had already multiplied and worked on this land. In Xia, Shang and Zhou dynasties, Hetao was a Laiyi area, belonging to Qingzhou. In the spring and Autumn period (770-475 BC), it belonged to laizi state. During the Warring States period (475-221 BC), it belonged to the state of Qi.

In 221 BC, the Qin Dynasty unified China and established Langya county (later Jiaodong county) Jimo County, which belongs to Hetao region.

In the Western Han Dynasty (206 bc-25 AD), it belonged to Buqi County, Langya County, Xuzhou.

In Sui Dynasty (581-618), Hetao belonged to Jimo County, Laizhou (Donglai county). After that, Hetao belonged to Jimo.

In 1898, Germany forced the Qing government to sign the "lease Treaty of jiaoao", and large areas of land in the South and west of Hetao region were occupied by Germany. In 1914, Germany was defeated in the Second World War, and the Japanese aggressors seized the opportunity to occupy the Jiao'ao concession.

In 1922, the government of the Republic of China took back the concession. In 1927, Liren township was set up as a district and Huihai community was set up as Huihai township.

On May 31, 1949, Hetao was liberated and belonged to Jimo county. In August 1958, Hetao people's commune was established, which has jurisdiction over 16 natural villages, and its administrative scope has been formed since then. In March 1961, Hetao commune was transferred from Jimo county to Laoshan suburb of Qingdao city. In April 1984, Hetao commune was abolished and Hetao township was set up, with jurisdiction over 18 administrative villages. In January 1991, Hetao set up towns instead of townships. In June 1994, Qingdao was divided into Chengyang District and Hetao town into Chengyang District. In June 2001, Hetao town set up a sub district office under the jurisdiction of 18 villagers' committees.

In July 2012, it was transferred to the jurisdiction of Red Island Economic Zone.

administrative division

Hetao Street covers an area of 82.7 square kilometers and has a population of 47826 (in 2010). It has jurisdiction over 18 administrative villages including donghetao, xihetao, xiaojiandong, Xiaojianxi, Dajian, Mengjia, zhaojialing, Shanjiao, Shangtuan, xiatuan, sungezhuang East (Jiangjun Garden community), sungezhuang West (Jiangjun Garden community), Shangjiagou, hanjiazhuang, Huqing, luojiaying, chaohaidong and chaohaixi.

geographical environment

Location context

Hetao street is adjacent to Jiaozhou Bay in the South and Qingdao across the sea; Jiulong street in Jiaozhou City, Jiaodong street in the northwest and Ligezhuang town in the north in the West; Shangma street in the East. The maximum horizontal distance from east to west is 9.4 km, and the maximum vertical distance from north to south is 14.2 km. The total area is 82.7 square kilometers, including 44 square kilometers of land area and 38.7 square kilometers of shallow beach and water area. The coastline is 15.95 square kilometers, and Dagu River and Taoyuan River pass through the region.

geology

Hetao region is a part of Jiaodong hills, located in the northwest of Laoshan mountains and the southeast edge of jiaoweihe basin. The main stratum in the area is the end of Mesozoic Jurassic about 137 million years ago. Affected by the late Yanshanian movement about 8-129 million years ago, the earth's crust dropped, forming wavy plain from volcanic rocks, which was covered by Quaternary. Finally, it gradually entered the remnant hill low formation with volcanic rocks as the basement and covered by Quaternary strata.

topographic features

After a long period of crustal movement and sedimentation, the landform in this area has formed a combination of hills and lowlands. The terrain is slightly inclined in Northwest and Southeast. The eastern and central parts of the region are hilly areas, while the northern, Western and southern parts are close to Dagu River, Taoyuan River and Jiaozhou Bay, forming coastal plain. The highest in the territory of Shanjiao village northwest Yantai top (ancient beacon tower), altitude of 34.7 meters.

There are five hills in the area, with a total area of 25.2 square kilometers, accounting for 36.8% of the total land area of the street. The hilly terrain is high in the West and low in the East, mostly in the north-south direction, and uplifted from the north and gradually inclined to the south. The geological lithology is composed of sand shale, volcanic limestone and andesite. The top of the hill is round, the soil layer is thin and barren, and it is eroded and weathered soil. The soil and water conservation is poor, the coverage rate is low, and the gullies are vertical and horizontal, and the ground is uneven.

The northern, Western and southern parts of the territory are close to Taoyuan River, Dagu River and Jiaozhou Bay. The coastal plain (commonly known as "beach and depression") is formed by long-term alluvial and marine deposition. It is the lowest lying area in the territory, with an altitude below 2.8 meters and an area of 43.2 square kilometers, accounting for 63.2% of the total Street area. The coastal plain is divided into two micro geomorphic units: plain land along the river and beach land.

climate

Hetao region belongs to the north temperate monsoon continental climate, due to the influence of marine monsoon and tide, the air is humid, the temperature is moderate, the four seasons are distinct, and the characteristics are prominent. In spring, the temperature rises slowly, which is about 25 days later than that of inland in the same latitude; in summer, it is hot and humid, with little heat; in autumn, the air is fresh, with light clouds and cool air; in winter, it is windy, with low temperature, with little severe cold. In a year, the warm and cool spring and autumn is longer, the hot summer is shorter, the winter is longer, but the cold current invasion is rare.

natural disaster

Although Hetao region belongs to warm temperature type of semi humid climate, but in history, tsunami, drought, waterlogging, wind, hail, insects and other major natural disasters occurred from time to time. According to the Tongzhi edition of Jimo county annals in the Qing Dynasty, the 1990 edition of Laoshan county annals and word-of-mouth circulation, from 1532, the 11th year of Jiajing in the Ming Dynasty to the 400 years before and after the founding of the people's Republic of China, there were more than 110 serious natural disasters in Hetao region, with an average of one famine year every three and a half years. In the years of natural disasters, 25% were caused by drought, 24.6% by flood, 13% by insect, 6.3% by hail, and 23.4% by famine.

natural resources

land resource

In 2003, there were 10729 Mu grain fields in the street. Since the 1970s, due to climate warming and rainfall reduction, the upstream of Dagu River blocked many rivers to store water, resulting in the downstream seawater irrigation. Thousands of Mu grain fields have become saline alkali land, while the barren mountain land has low vegetation coverage and serious soil erosion, which are the reasons for the sharp reduction of cultivated land. According to the principle of national land productivity classification and the eight standards of provincial land classification, there is no first grade land in the region, most of which are second, third and fourth grade land.

water resource

Surface water surface water resources are mainly natural precipitation and transit passenger water. According to the hydrological records from 1956 to 1983, the average annual rainfall in the region is 716.3 mm. The annual average runoff from rainfall is 31.5172 million cubic meters. The maximum runoff in high flow year is 62.656 million cubic meters in 1964, which is twice of the average annual runoff; the minimum runoff in low flow year is 11.968 million cubic meters in 1981, which only accounts for 38% of the average annual runoff. From 1989 to 2003, the average annual rainfall in the region was 677.2 mm, and the runoff generated by the average annual rainfall was 46.32 million cubic meters.

The transit passenger water mainly flows through Dagu River and Taoyuan river. Before the 1970s, the average annual total amount of water passing through Dagu River was 879.7 million cubic meters. Since the early 1970s, the water quality of Dagu River has been seriously polluted due to the impoundment of the upper reaches of Dagu River, the backflow of seawater in the lower reaches, and a large amount of industrial sewage. The upper reaches of Taoyuan river is a seasonal river, and the lower reaches meet Dagu River, which is a tidal river. In the 1990s, it has become a river for industrial sewage discharge, and the passenger water of the two rivers is no longer available. There are 51 small reservoirs, 20 pond dams and 28 Gufang (zhashanggou) in the area, with a total of 2.5333 million cubic meters of surface water. Most of these reservoirs and ponds are distributed along the Taoyuan River and Dagu River, accounting for 88% of the total surface water.

Due to the different topography, hydrology and geological conditions, the distribution and water content of groundwater are obviously different. According to the geological structure, landform and Quaternary geological survey, there are three types of underground water in the area.

The dike aquifer is mainly bedrock weathering fissure phreatic water, which is roughly distributed in zhaojialing, Mengjia, Huqing, hanjiazhuang, xiaojiandong and Xiaojianxi. The fracture water of andesite, basalt and shale in Qingshan Formation has a water yield of 3-25 m3 / h. in the sandy conglomerate section of Wangshi formation, the weathering fissures of bedrock are well developed and the water content is rich, which is suitable for drilling large wells.

There are two fault groups in the fault aquifer domain. Zhaojialing, north of Mengjia village, north of Xiaojian and Dajian village, west of xiatuan village and north of Shanjiao village are a fault group. They are mainly controlled by the faults in the east-west direction. On the north side of the fault layer, along the east-west direction, they can be regarded as a water line. Along this line, a lot of groundwater is exposed in the form of "descending spring". A large amount of underground water can be obtained by mining on the fault line or slightly to the north Water. In the north of sungezhuang village, there is a fault group in the northwest southeast and north-south direction of beifosigou, which is rich in water

Chinese PinYin : Shan Dong Sheng Qing Dao Shi Qing Dao Gao Xin Ji Shu Chan Ye Kai Fa Qu He Tao Jie Dao