Ulagai Management Committee of Xilinguole League, Inner Mongolia Autonomous Region

WULAGAI administrative region WULAGAI administrative region belongs to Xilinguole League of Inner Mongolia Autonomous Region. It is an administrative region with county-level administrative authority. It is located in the northeast of Xilinguole League, at the junction of Xilinguole League, Xing'an League and Tongliao City, adjacent to huolingole city in the South and Aershan city in the northeast, between 118 ° 44 ′ - 119 ° 50 ′ E and 45 ° 29 ′ - 46 ° 38 ′ n Xi League is an important gateway to Northeast China.

WULAGAI management area has a total land area of 5013.67 square kilometers. As of the end of 2014, the total resident population of WULAGAI management area is 26129, which governs three state-owned agricultural pastures of lagaitu, WULAGAI and hesgewula, and one established town of Bayinhushu town. In 2014, the GDP of the region reached 3.84577 billion yuan, an increase of 8.9% over 2013.

WULAGAI management area is open and undulating, with grassland scenery and natural landscape such as primitive grassland, birch forest, shaoyaogou, and historical and cultural relics such as Bulin temple. WULAGAI grassland is one of the best preserved natural meadow grasslands in Inner Mongolia Autonomous Region, known as "Tianbian Grassland".

Historical evolution

In 1960, the Xilin Gol League administrative office established the local state-owned ulagaigol mechanized farm.

In 1969, the sixth division of the Inner Mongolia production and Construction Corps of the Beijing Military Region of the Chinese people's Liberation Army was established.

In 1975, the organization of the production and Construction Corps was abolished and the WULAGAI branch of the agricultural and ranching administration of Inner Mongolia Autonomous Region was established.

In 1981, it was renamed Ulagai pasture authority.

In 1993, with the approval of the people's Government of Inner Mongolia Autonomous Region, WULAGAI comprehensive development zone was established to perform the functions of banner and county management.

In 2005, it changed its name to WULAGAI management area, and implemented the system of "one set of people and two brands" with WULAGAI Pasture Management Bureau.

administrative division

As of 2014, the Ulagai management zone has three state-owned agricultural pastures, halagetu, Ulagai and hesgewula, and one established town in Bayinhushu town. The Management Committee of the management zone is located in Bayinhushu town.

geographical environment

Location context

WULAGAI administrative region is located in the northeast of Xilin Gol League, Inner Mongolia Autonomous Region, at the junction of Xilin League, Xing'an League and Tongliao City, adjacent to Huolin gol city in the South and Aershan city in the northeast, between 118 ° 44 ′ - 119 ° 50 ′ E and 45 ° 29 ′ - 46 ° 38 ′ n, with a total area of 5013.67 square kilometers.

geological structure

WULAGAI management area is located in Xilinguole polygonal structural system of inland XINHUAXIA subsidence zone, which is composed of balongmaglong uplift zone and WULAGAI subsidence zone.

The balongmaglong straight belt is distributed along the northern border of Xilin Gol League, starting from the northeast of Ulagai Administrative Region in the East and extending westward along the border to Erlianhot. It is mainly composed of metamorphic rocks in Paleozoic belt and large area of Huali two skarn rocks. In the south, there are Jurassic intergranular clastic rocks, eruptive rocks and tuff. Under the action of North-South pressure, the Mesozoic strata formed a NE trending small fold and a series of NE trending compressional and compressional torsional faults, which were interrupted in the uplift belt, and several tension faults appeared in the vertical compressional faults. Because of the eruption of Cenozoic basalts from these tensile faults, several NW trending basaltic belts were formed. In addition, within the uplift belt, there are a series of small uplifts and Mesozoic subsidence areas composed of North-North Paleozoic rock series, which are arranged alternately, belonging to a more secondary polygonal structure.

WULAGAI subsidence zone is located in the east central part of Xilin Gol League. Its north boundary is Bayan ERRI and Tuzhi Erlian of halagaitunong ranch, and its south boundary is yanjiga wurigentala (erdaojingzi). The southwest half of the area is located in the northeast edge of WULAGAI subsidence zone. Because of the existence of large faults on the north and south sides, it is a North-North fault subsidence zone, and the fault subsidence occurred in Paleozoic At the end of the Triassic, the basement was composed of metamorphic rocks and granites of Paleozoic. Mesozoic strata are deposited in the subsidence zone. Due to the outcrop of Paleozoic strata in the area from the south of uliyastai to xiaoailiang, the subsidence zone can be divided into East and West subsidence zones. The area belongs to the East subsidence area, which is an oval depression, so it is called WULAGAI basin. Mudstone is exposed at the edge of the basin in flake form. Quaternary alluvial deposits fill the low-lying area in the middle. The southern part of WULAGAI pasture belongs to WULAGAI basin and northeast margin.

There are three underlying River belts in WULAGAI management area, namely, the northwest slope of the West Rock hills of the seyeleji River; the northwest slope of the upstream hills of the WULAGAI River; and the northeast part of the dark sand belt from the south of bayinhushuo bayanwenduer line to the north of baiyinulahaote yanjigamiao line. The thickness of sand layer is generally more than 50 cm.

topographic features

WULAGAI management area is located at the junction of Daxinganling Mountains and Inner Mongolia Plateau. Due to different internal and external stresses, it shows different landforms. The whole area is divided into two parts: the northern part is the low mountains and hills of balongmag land; the southern part is the eastern subsidence area of WULAGAI subsidence belt northeast edge of WULAGAI basin. The eastern part is close to the Daxinganling Mountains, which is characterized by mountainous appearance, while the western part is characterized by low mountains and hills in the Inner Mongolia Plateau. Therefore, the general terrain in the area is inclined from northeast to southwest, the ground is open and smooth, and the fluctuation is gentle. The landscape is monotonous. The altitude ranges from 855.1 to 1334.9 meters. The highest peak is Ulan hada in the northeast of hesgewula, with an altitude of 1334.9 meters. The lowest point is the valley plain in the southwest of the lower reaches of Ulagai river. The whole region is composed of low mountains and hills, river valleys and flat beaches, most of which are gentle. Most of the mountains, hills and valley plains in the region are arranged in the form of northwest southeast, northeast southwest and east-west veins. In the middle and low mountainous areas to the east of WULAGAI River in Northeast China, the slope is generally between 10 ° and 15 ° and the terrain is relatively gentle. The top of the mountain is in the shape of a dome with a thin layer of sand on it.

The WULAGAI river system caused more River impact and formed pluvial plain. There are 30-50m thick Pliocene and Pleistocene sediments in the valley. On the outer edge of the valley plain, there are some inclined plains, which are mainly composed of Upper Pleistocene alluvial proluvial medium coarse sand and sand gravel. The vast majority of the area is low mountains and hills, with an altitude of 850-1000m and a relative height difference of 20-100m. Moreover, there are few gullies in the mausoleum, many broad flat valleys, most of which are 200-500 meters wide, and the boar gully in halagaitunong ranch is 1000 meters wide. The hills are round and the weathering crust is thick. They are mainly composed of granite, schist and basalt. There is little difference between the peaks and the broad valleys in the hills. The surface is composed of residual, slope, gravel and river gravel. The geomorphology of WULAGAI area is characterized by prominent zonal structure, hills and basins as the main body, and extensive development of river terraces.

climate

WULAGAI management area belongs to semi humid and semi-arid continental climate, with cold and long winter, cool and short summer, dry and windy spring, obvious alternation of four seasons and large temperature difference between day and night. The average annual temperature is 0.9 ℃ below zero, the average annual effective accumulated temperature is 1900-2100 ℃ above 10 ℃, the average annual sunshine hours is 2700 hours, the sunshine percentage is 61%, and the average annual precipitation is 342 mm, mostly concentrated in June, July and August. Due to the influence of the cyclonic circulation, the West and northwest wind prevails from autumn to spring, and the southeast and south wind prevail in summer. The annual average wind speed is 4.1 M / s, and the annual average wind speed at the height of 70 m of the anemometer tower is 8.55 M / s.

hydrology

WULAGAI River and its tributary seyeleji River mainly originate from the mountains of Daxinganling. WULAGAI river has a total length of 360 km, with a drainage area of 20200 km. The annual average runoff is 113 million cubic meters, and the annual average flow is 3.58 M / s. it joins with the tributary seyeleji river at hushuomiao and flows westward into WULAGAI Gobi. The seyeleji river is 98 km long with an average annual discharge of 0.41 M / s.

natural resources

water resource

The total amount of water resources in WULAGAI management area accounts for about 1 / 3 of the total reserves in Xilingol League. As of 2015, the total amount of surface water in this area is 1.74 billion cubic meters, the groundwater reserves is about 7.86 billion cubic meters, and the water quality is fresh water. There are WULAGAI reservoir and hesgewula reservoir. WULAGAI reservoir is located in the middle and upper reaches of WULAGAI River, with a total capacity of 248 million cubic meters. Hesgewula reservoir is located in the upper reaches of seyeleji River, with a storage capacity of 20 million cubic meters. There are 12 lakes and 23 springs.

mineral resources

The main mineral resources distributed in WULAGAI management area are gold, silver, fluorite, zinc, palladium, clay, limestone, bentonite, mineral water, coal, etc., especially coal, mineral water, fluorite, bentonite, limestone, etc. The predicted reserves of coal resources are more than 10 billion tons, belonging to a coal forming belt with Baiyinhua and Huolinhe coalfields. As of 2015, the total coal reserves of hesgewula coalfield and nongnaimiao coalfield completed exploration in this area are more than 2.4 billion tons, the coal quality is lignite, with medium ash, low sulfur and low phosphorus, and the calorific value is between 3500-5000 kcal.

Biological resources

There are 801 species of wild plants in WULAGAI management area, which belong to 62 families and 256 genera. The dominant species are Compositae, Gramineae and Leguminosae. There are more than 200 kinds of wild medicinal plants, including more than 30 common species such as Astragalus membranaceus, Scutellaria baicalensis, radix paeoniae rubra, lily, Sanguisorba officinalis and Gentiana macrophylla. The edible wild plants include yellow flower, bracken, etc. There are dozens of wild animals, including deer, roe deer, yellow sheep, swan, lark, Red Crowned Crane and so on