Administrative divisions of Sangri County

1June, 959, Sangri County was divided into four districts: Rongqu, Sangri, Woka and Wen Qu, with district offices and armed working groups in Zhen Zhen District.

1July, 959, except Jiang (township), most warm areas were under the jurisdiction of Naidong County.

1September, 1959, Sangri County was divided into 4 districts, 18 townships: Rongqu (covering 6 townships of Balang, Ji Rong, Zaba, Chengba, Pingqiong and Yeqiong), Sangri District (covering 4 townships of Xueba, Biba, Luo Xiang and Jiangxiang) and Woka. Subsequently, Zhaga was transferred from Lagari (Qusong County) to Sangri County, which belongs to the velvet area and established Zhaga Township.

1August, 960, Maoming Township was revoked, and the original Maoming Township was returned to Zhen Zhen, Woka and Baijin Township respectively. Xu Mu Township was abolished and Baidui Township and Keelung Township were established. So far, Sangri County has jurisdiction over 4 districts and 19 townships.

1March, 962, Zhaga District was newly established, which governs Zhaga, Yeqiong and Pingqiong townships.

1March, 965, Zhaga District was abolished, and the three townships and districts under its jurisdiction were merged into Rongqu.

1960 March, 19 Township People's Government was established. '

In July 1966, Jinlin Township, Balang Township and Baidui Township were changed into people's communes. By August of 1974, people's communes had been established in all the 9 townships in the county. Sangri County governs 4 districts and 19 people's communes.

1984, the county 19 people's commune was abolished and the township organizational system was restored.

From 1987 to 1988, four districts were abolished, and 19 townships were merged and reorganized into seven townships: Zengqi Township, which governs eight administrative villages; Woka Township governs 6 administrative villages; Sheba Township governs 6 administrative villages; Jiangxiang, which governs 3 administrative villages; Rongxiang, which governs 9 administrative villages; Baidui Township governs 8 administrative villages; Zhaga Township governs five administrative villages.

1998, 7 townships were merged into 1 township, and 3 townships were Sangri Township, Zengqi Township, Baidui Township and Rongxiang Township. Tibet was once a part of the Tethys Sea across the southern part of Eurasia. In the late Permian, the Tethys Sea gradually retreated southward. In the late Eocene of Tertiary, the Tethys Sea completely withdrew from Tibet, and the first Himalayan land-building movement was completed. In the third stage of Himalayan movement, a large-scale crustal movement dominated by fault activity took place, forming a series of folded fault blocks, fault basins and fault valleys. Tibet has risen by stages and by a large margin, forming the "roof of the world". It is mainly the geological movement after Cretaceous that has created the geological structure of Sangri County and affected the landform development.

Affected by geological structure, the strata in Sangri County are relatively simple. Lhasa-Bomiya area is bounded by Yarlung Zangbo River, with Gangdise-Nyainqentanglha stratigraphic area as the north, and a large area of intermediate-acid intrusive rocks such as late Yanshanian granite are exposed. The northern Tethys Himalayan geosyncline sedimentary belt belongs to Himalayan stratigraphic area in the south, mainly exposed volcanic rocks, radiolarian siliceous rocks and Mesozoic stratigraphic melange. Tertiary continental mylonite conglomerates are intermittently distributed on the north and south banks of the Yarlung Zangbo River deep fault zone. From north to south, the stratigraphic types in the territory are: Carboniferous-Permian sandstone, gravel slate, slate, late Yanshanian granite, tertiary Mailaishi conglomerate, ophiolite and flysch. Sangri County is located at the southern foot of Gangdise Mountain and the middle reaches of Yarlung Zangbo River. The overall terrain is high in the west and low in the east, high in the north and low in the south, showing the trend of "two mountains and one river". The mountainous area in the territory is about 184 1.3 square kilometers, accounting for 69.94% of the county's total area; Valley and lake basin are 755.95 square kilometers, accounting for 28.67% of the total area; The water area is 36.75 square kilometers, accounting for 1.39% of the total area. The average elevation of mountainous areas is about 4587 meters, the relative elevation is about 1042 meters, and the elevation of river valleys is between 3 100-3800 meters. The highest elevation in the territory is 6220 meters, the lowest elevation is 3 143 meters, and the average elevation is 4065.75 meters.

The Yarlung Zangbo River divides Sangri County into two parts: the Himalayas in the south and the Gangdise Mountains in the north. The canyon rises gradually from the river bank to the north and south, and there are more than 40 peaks over 5000 meters. The southern mountainous area belongs to a part of the northern slope of the Himalayan east-west fault block, with a slope angle of 5- 10, and gently inclines to the Yarlung Zangbo River. There is no obvious boundary between the mountain and the plateau, and the northern slope of the mountain is a part of the plateau. The mountainous area in the north of the county is a part of the Guokarijiu folded mountainous area and belongs to the eastern extension of the Gangdise Mountains. The whole mountain system consists of Jurassic and Cretaceous large-scale intermediate-acid intrusive rocks and migmatites with strong folds. The fold belt is dominated by Yanshan granite, which is strongly weathered and eroded by frost due to the special dry and cold environment. Most of the mountains in the territory are north-south, and a few are northeast-southwest and northwest-southeast. The mountains in Sangri County are distributed in the north-south direction (from west to east). Big Buzhuola is not as good as Nipo, a pile of dragons pulls a real Kira, a foot of wheat's horse's teeth pot pulls a Shagara, a fruit day, a fake fruit day, a long Russian climbing pull, and a Eurola-Jiarongla northeast-southwest trend * * section, with a wrong mother green, a bogga, a wrong ga and a slave feeling of Elon. (Jiangnan) The mountain range at the junction of Gabula, Labula, Sangri, Qusong and Naidong is at the end of Great Habri-Qusong, extending from northwest to southeast. On both banks of the Yarlung Zangbo River near the upper reaches, there is a strip plain about 20 kilometers long from east to west, and there are two small basins, Woka and Baijin, which are relatively developed agricultural areas in China. There are three types of landforms in Sangri County: mountain landforms, valley landforms and aeolian landforms.

Alpine landform

Alpine landforms are most widely distributed in Sangri, and are distributed everywhere except Yarlung Zangbo River Valley in the middle of the county. The relative height of the mountain is above 1000m, and the landforms such as tinder, knife ridge and ice bucket are developed, and modern glaciers are developed around some peaks with an altitude of about 6,000m m. High mountain areas, deep rivers, steep valleys, large vertical slopes and deep valleys. At an altitude of 4,500-5,500 meters, the middle and low mountains on the plateau are strongly weathered by cold and freezing, forming denuded mountain landforms with dense erosion ditches, exposed bedrock and broken terrain and wide valley landforms between mountains. In addition, there are some high mountains and hills with an altitude of about 4000 meters. The mountain is composed of sandstone, slate and shale, which is highly erosive and the ridge line is not obvious.

valley form

Valley landforms are mostly distributed along rivers below 4000 meters along the coast, which can be roughly divided into three forms: wide valley, narrow valley and canyon. The Yarlung Zangbo River valley above Zangga Village in Baidui Township is of medium-wide valley landform, with a width of 1-2km and its widest point (near Yangcun Hydrological Station) of about 3km. Rivers occasionally bifurcate, with valley slope 10-30, more side beaches and central beaches, and smaller longitudinal gradient of riverbed. The Yarlung Zangbo River Valley (Jiacha Canyon) below Zangga Village in Baidui Township is a canyon landform, with an average width of 100-200m, and the narrowest part is only tens of meters. The riverbed is a single channel with deep riverbed, active gravity on valley slope and frequent landslides and mudslides. The valleys of the first and second tributaries of the Yarlung Zangbo River are mostly narrow valleys with an average width of about 500 meters. The widest point appears in the estuary where tributaries meet, and the width can reach 1 km.

There are small and medium-sized geomorphic units such as terrace, floodplain, heart beach, alluvial fan and alluvial platform in the valley geomorphic area. The main characteristics of the distribution range of geomorphic units are as follows: (1) the wide valleys of the Yarlung Zangbo River and its main tributaries are formed by crustal uplift and river undercutting; Most of them are accumulation terraces, which are divided into several layers of floodplains, distributed in strips (blocks) on both sides of the wide valley section of the Yarlung Zangbo River, and are 1-2 meters higher than the river surface in normal times. The center of a large river channel is composed of sand-gravel mixture, which is piled up into a dune shape. The mouth of the alluvial fan is about 1 m higher than the river surface in normal times, and it is made up of rocks, debris and sediment.

The aeolian landform in Sangri County is mainly distributed in the flat depression at the foot of the slope below 4200 meters above sea level in the wide valley section of Yarlung Zangbo River. This section of the valley is dry and windy, with sparse vegetation, loose surface materials and wide terrain, forming aeolian landforms such as aeolian dunes, crescent dunes, dune chains, checkered dunes and sandbags. Among them, sand dunes are the most common, often covering the floodplain, terrace, alluvial fan, valley slope and hillside with a relative height of 200-300 meters. Sangri county belongs to Sangri-Jiacha community in the middle reaches of Yarlung Zangbo River in the semi-humid climate zone of plateau temperate monsoon. Its main characteristics are low temperature, long winter without summer, and inconspicuous season. Strong solar radiation, long sunshine time, intense ground heating during the day, rising temperature, weak air insulation at night, and rapid temperature drop, resulting in large daily temperature difference and small annual temperature difference. There is a saying that "there are no four seasons in a year, and four seasons are seen in one day"; Clear wet and dry seasons, less precipitation and strong evaporation; The three-dimensional climate is remarkable, and the differentiation of yin and yang slopes is obvious; Catastrophic weather happens frequently. Affected by topography, the distribution of water and heat in the north and south of the county is uneven. Most of the northern part of the Yarlung Zangbo River is a plateau temperate monsoon semi-humid climate zone, and the southern part of the county and the valley area are a plateau temperate monsoon semi-arid climate zone.

The annual average temperature in the Yarlung Zangbo River Basin is 8.2℃, the July average temperature is 15.4℃, the extreme maximum temperature is 29℃, the monthly average temperature is -0.9℃, and the extreme minimum temperature is-1 7.6℃. Frost-free period 150- 180 days. The annual average precipitation is 429. 1 mm, with distinct wet and dry seasons. Precipitation is concentrated from June to September, with rain at night, and the annual night rain rate is over 80%. It is dry and rainy in winter and spring, and the humidity coefficient is less than 0.08. The annual evaporation is 1968.7mm, which is one of the regions with the largest evaporation in Tibet, and the drought is serious. The annual average sunshine hours are 2936.6 hours, and the sunshine percentage is 66%. Affected by the atmospheric environment and topography, the northeast wind prevails, with 73.8 windy days and an annual average wind speed of 3.5m/s, in which winter and spring are controlled by westerly jet, and the "wind season" is from 65438+ 10 to May of the following year.

The temperature in the northern mountainous grassland is lower than that in the valley area, with an annual average temperature of 5-8℃, the average temperature in the warmest month (July) 13- 15℃, and the average temperature in Leng Yue (June 65438+ 10) is about -2℃. The frost-free period is about 60 days. The average annual precipitation is about 370 mm, of which the precipitation from June to September is about 330 mm. The average annual sunshine hours are 2770 hours. Winter and spring are cold and windy.

Sangri County has great altitude difference and obvious vertical climate differentiation. From valley to mountain, there are five vertical climate types: warm and semi-arid climate in valley, mild and semi-arid climate in mountain, cool and semi-humid climate in mountain, cold and humid climate in mountain and cold and semi-humid climate in mountain. surface water

Sangri County has developed water system, numerous rivers, scattered lakes and developed glaciers, forming a dendritic water system pattern with Yarlung Zangbo River as the mainstream.

All rivers in the territory belong to the outflow of the Yarlung Zangbo River system, and the first-class tributaries run down from the two high mountains in the north and south, and flow into the main stream of the Yarlung Zangbo River, running through the county. There are 22 rivers running all the year round in the county, including 9 rivers with a basin area of over 50 square kilometers. The Yarlung Zangbo River runs through the south-central part of the county from west to east, with a total length of about 71.5 km. During the flood period, the widest part of the river is about 1.2km, and the narrowest part is about 100m. The elevation of the river reaches dropped from 3520m at the entrance to 3260m at the exit, with a drop of 260m. The average water level (higher than the assumed datum) is 8.27m, the average flow rate is 937m3/s, the average runoff depth is 193.0mm, the annual average runoff is 29.57 billion m3, and the annual average sediment discharge is 12 10t. The Woka River is the largest tributary of the Yarlung Zangbo River in this county, with a total length of 57.5 kilometers. The overall flow direction is from north to south, with a natural drop of1138m. The annual average water level is 2.75 meters higher than the assumed interface, the annual average flow 18.3 cubic meters per second, and the annual average runoff is 578 million cubic meters. Biba River (Bixiangqu) originates from the junction of Sangri, Mozhugongka and Naidong counties, flows from north to south through Kangmache Village, Pucun Village, Karu Village, Bixiang and other places, and joins the main stream near the county seat, with a total length of about 35 kilometers, a natural drop of 1.572 meters, a large flow and a narrow valley. In addition, there are large tributaries such as Qusong River, Duisui River, Jiangxiangqu, Dongguqu and Luolangqu. About 200 square kilometers northeast of Sangri County belongs to Lhasa water system, and finally belongs to Yarlung Zangbo River water system.

There are 26 lakes 126 in Sangri County, with a total water area of 623.44 hectares, mainly distributed in the northeast corner of the county, with an altitude of more than 4,600 meters. Most of them are freshwater lakes with good water quality. Among them, most of the outflow lakes are the recharge sources of rivers, and the larger ones are Tambacuo, Rezhen, Maocuo, Zhencuo and Coarse. The inner lake is surrounded by mountains, and the larger ones are Lamochuo, Tongqingma and Rezicuo, with poor water quality and high salt content. There are about 14 square kilometers of permanent snow-covered glaciers on the mountain tops in the north, east, northeast and south of China, which belong to modern marine glaciers and are important water supply sources for rivers.

underground water

The groundwater in Sangri County mainly comes from atmospheric precipitation, infiltration in the northeast and south, surface runoff infiltration on both sides of the valley and farmland retreat, mainly in the form of rock fissure water and Quaternary loose layer water storage, and the groundwater reserves are relatively small. Judging from the amount of groundwater, the valley area is larger than the gullies on both sides of the valley, and the north is larger than the south. Groundwater in China is fresh water, mainly including heavy calcium carbonate and magnesium heavy calcium carbonate. It belongs to weakly alkaline water with salinity less than 1g/L ... The groundwater near the county seat is buried deeply, reaching 30-50 meters; Woka, Baijin, Baidui, Biba and Balang are buried shallowly with a depth of 2-5 meters. Due to sediment deposition and river bed uplift, groundwater gushed out in some sections of rivers such as Biba River, Baidui River, Zengqi River and Baijin River. Sangri County has a complex landform and many soil types. There are 1 1 soil types, 27 subtypes, 13 soil genera and 39 soil types in China. According to soil suitability and agricultural utilization degree, it can be divided into three types: cultivated soil, grassland soil and hard-to-use soil. The main cultivated soils are subalpine meadow soil, subalpine steppe soil, mountain scrub grassland soil, meadow soil and fluvo-aquic soil. Distribution Characteristics of Main Cultivated Soil Types in Sangri County The cultivated subalpine meadow soil is 42. 19. Villages with an altitude of 4 100 meters, such as Zhaga in Rongxiang, have medium thickness and high organic matter content. Decomposition of slowly cultivated subalpine steppe soil 1206.09 The parent materials of soil-forming in Rongxiang, Zengqi and other villages and towns at an altitude of 3900-4200m are residual slope accumulation, diluvium and alluvial, and the texture is mostly sandy loam and sandy soil. The soil is neutral to alkaline, and 2253.43 is cultivated in mountain shrub grassland. Rongxiang and Sangri towns are mostly sandy loam with high gravel content and pH value of 6.6. It is the main agricultural soil in Sangri County, and the most widely cultivated meadow soil is 47.89. The alluvial platform in Woka Valley has high groundwater level, abundant water, vigorous vegetation growth, high organic matter content and fertile soil. The fluvo-aquic soil 699.05 is mainly distributed in Zengqi, Sangri Town, Baidui and Rongxiang. The local soil in Jiangxiang is mostly sandy loam, and some is silty loam. Deep soil layer, superior water source conditions, extensive crops and high yield. The grassland soil area in China is 96,606 hectares, of which alpine meadow soil is distributed between 4,500 and 5,300 meters above sea level in the upper part of each mountain, with an area of 1 1552 hectares. Subalpine meadow soil is connected with alpine meadow soil, covering the whole county, covering an area of 57449 hectares; Subalpine grassland soil is mainly distributed in the valley slopes between 4000m and 4200m above sea level, with an area of 1 1970 hectares. The soil of mountain scrub grassland is distributed on both banks of Yarlung Zangbo River and its tributaries, with an area of 14504 hectares. The marsh meadow soil area is 1 13 1 hectare, which is mainly distributed in the low-lying areas in the alpine lake basin area of Zengqi Township in the northeast of the county, with high groundwater level and lush meadow vegetation.

There are 34,570.82 hectares of hard-to-use soil in Sangri County, with sparse vegetation, shallow soil layer, large slope and strong thick bones. Alpine desert soil is mainly distributed in the watershed, ancient ice bucket, ancient glacier or moraine platform at an altitude of 18836 hectares, such as Zengqi, Woka and Baidui in the north and northeast. The newly accumulated soil is mainly distributed in the Yarlung Zangbo River and the first-class tributary floodplain or piedmont alluvial fan, with an area of 835 hectares, short soil formation time, thin soil layer, more gravel, poor water conditions and low nutrients. Aeolian sandy soil is composed of gravels migrating with dry and hot wind, which are mainly distributed on both banks of the Yarlung Zangbo River and at the foot of the slope, with an area of 1099 hectares. Rocky soil covers an area of 13797.75 hectares, mainly distributed in Woka, Zengqi, Baidui and Sangri towns in the north of the Yangtze River. Coarse bone soil covers an area of 3.07 hectares and often appears in subalpine areas with low altitude. The terrain is steep, the soil layer is extremely thin, and the gravel content is over 70%, so it is difficult to develop and utilize. According to the utilization types, the land in Sangri County can be divided into four types: suitable cultivated land, suitable woodland, suitable pasture and unsuitable pasture. List of land use types in land type areas of Sangri County

(square kilometers) accounts for 42.9 1.63% of the total area, mainly distributed on both sides of the Yarlung Zangbo River at an altitude of 3500-4000m. 265,438+07.028.23% dam, slope toe valley and alluvial fan area from Jiangxiang to Zhaba and Lalong, as well as suitable forest land such as Qusong River, Bixiangqu River, Woka River, Baijin River and Baidui River are mainly distributed in hillside and valley areas below 4000m above sea level, which can be divided into windbreak (timber forest) land, suitable forest land and forest land. About two-thirds of the middle and lower layers of land are not suitable for agriculture, forestry and animal husbandry, of which 53.92% are distributed in cold areas, sunny slopes and river valleys above 4500 meters above sea level, and concentrated in some villages of Baidui, Zengqi and Rongxiang. The main mineral resources in Sangri County are copper mine, chrome mine, placer gold mine, marble, limestone and kaolin.

Copper mine

Copper deposits are mainly distributed in the Gangdise volcanic-magmatic arc on the southern margin of Gangdise-Nyainqentanglha plate, with a nearly east-west intermittent distribution; Up to 2000, 65,438+0 ore occurrences and 6 mineralization spots, such as No.8 Team, have been discovered in China. The genetic types of the deposit are skarn type and hydrothermal chronotropic type. Chongmuda Copper Mine has a copper grade of 1.82-3.87%, gold content of 0.18-0.84g/ton and silver content of 9-39.7g/ton.

chrome ore

The chrome ore is located in the middle of the south Qusong-Sangri-Naidong chrome ore belt of Yarlung Zangbo River, with a grade of over 45%.

limestone

Bibacun limestone deposit is located in Gangdise volcanic magma arc on the north side of Yarlung Zangbo River. Limestone is layered, ore body is layered, and the thickness is huge, with a single layer thickness ranging from 0.5 to 3 meters. The ore is mainly fine-grained limestone with massive structure, and the ore composition is calcite. Its quality can meet the requirements of chemical limestone and hydraulic marl, and the occurrence of ore bodies is relatively stable and the resources are large.

marble

Rongxiang marble mine is located on the east side of Yarlung Zangbo River, about 7 kilometers northeast of Rongxiang in Sangri County. Marble is lenticular in plane, and the ore is gray-white block, with calcite as the component, and gangue minerals contain trace magnetite. Up to 2000, there were 53 families 19 1 genus 4 19 species of higher plants in Sangri County, including 369 species of herbs, such as ephedra, Tibetan nettle, Polygonum Glacier, Tibetan Euonymus, Dioscorea zingiberensis, Sedum alpinum and Potentilla pubescens. 13 tree species, such as Kangding willow; There are 37 kinds of shrubs, such as cedar, Berberis Lhasa, Caragana bicolor, Jilaliu, etc.

Up to 2000, there were 173 species of vertebrates in Sangri County, including 3 1 family 123 species of birds, such as magpie, red-billed Jay, cuckoo, snowy chicken, turtledove, rock pigeon, red-spotted duck, striped goose and black-necked crane. Mammals 14 family 3 1 species, such as wolves, Tibetan foxes, leopard cats, snow leopards, red deer, white-lipped deer, musk deer, gazelle, Tibetan antelope, rock sheep, community rats, plateau rabbits, pikas, macaques, etc. 6 species of amphibians and reptiles in 5 families, such as mountain frog, hot spring snake and iguana; There are 3 families 13 species of fish, such as crucian carp, carp, Tibetan Plateau loach and schizothorax fish. The agricultural division of Sangri County is divided into two areas: Yarlung Zangbo River, Woka River agricultural area and ravine and alpine farming and pastoral area. The agricultural areas of Yarlung Zangbo River and Woka River are located in the valley, with relatively flat terrain and good hydrothermal conditions. The cultivated land area is about 12.5 square kilometers, and the grassland area is about 86.7 square kilometers, which is the main grain and oil producing area in Sangri County. The ravine and alpine farming and pastoral areas are located in the east, south, northwest and north of the county seat, which are semi-agricultural and semi-pastoral areas and pure pastoral areas. The grassland area is 95. 1 km2, the cultivated land area is 2.57 km2, and the natural grassland area is relatively large, mainly developing animal husbandry. In 20 13, there were 7,203 employees in agriculture, forestry, animal husbandry and fishery in Sangri County, with an output value of 60.53 million yuan.

agriculture

The main food crops planted in Sangri County are highland barley, winter wheat, spring wheat, potato, pea and broad bean. The main cash crop is rape, and the vegetables are cabbage, radish, carrot, pepper, cucumber, ginger, eggplant, pumpkin, leek, lettuce, tomato and celery. 1959 The cultivated land area of Sangri County10.9 million mu, with a yield of 72 kg and a rape yield of 28.28 tons. 1972 winter wheat was planted successfully, and it was listed as the main food crop alongside highland barley. In 20 13, the cultivated land area in Sangri County was 353 1 hectare, all of which were dry land; The sown area of grain crops is 884 hectares and the total output is 8 144 tons, of which the sown area of grain is 86 1 hectare and the total output is 7998 tons. The planting area of beans is 23 hectares, and the total output is 146 tons; The sown area of oil crops is 4 16 hectares, and the output of rapeseed is 1 170 tons. In 20 13 years, the agricultural output value of sangri county reached 3210.6 million yuan.

animal husbandry

Sangri County mainly raises yaks, bulls, cattle, native sheep, Tibetan sheep, Tibetan sheep, Xinjiang semi-fine wool sheep, Tibetan goats, horses, donkeys, mules and other livestock. 1960, Dajie Village, Zengqi Township established county pasture. 1965 county horse farm was established in Woka Township. In the mid-1960s, foreign cattle and sheep were introduced to improve local varieties. 1985, the county was divided into three animal husbandry development areas: yak and yellow cattle development area in the northern alpine grassland, yellow cattle, goat and pig development area in the middle valley and mountain sheep development area in the southern alpine valley. By the end of 20 13, there were 94,300 livestock in Sangri County, including 50 1 10,000 large livestock and 42 1 10,000 sheep. In 20 13 years, the total output of meat in Sangri County was 2 132 tons, including beef 1732 tons and mutton 260 tons. The milk output is 2270 tons; The wool output is 39 tons, including sheep wool 14 tons; Cowhide output 17825, sheepskin output12420; The output value of animal husbandry is 24.77 million yuan.

forestry

In 1960s, Sangri County introduced apple, peach, pear and other fruit trees, established orchards and began to implement afforestation. Since 1980s, in order to prevent sandstorms, people have built shelterbelts and encouraged individuals to contract barren hills, beaches and hillsides for afforestation. At 1983, 20 closed areas were divided. 1985 carries out forestry division, and divides the whole territory into two forestry development areas: shrub soil and water conservation, firewood forest area, central windbreak and sand-fixing farmland protection and firewood forest area. By 2000, there were about 654.38+500,000 cubic meters of wood in Sangri County. In 20 13, Sangri County completed afforestation of 23,000 mu, planted 480,000 trees, and realized forestry output value of 700,000 yuan. Since ancient times, there has been copper mining in Sangri, and there are traces of indigenous copper mining in Jiangbei area. Before 1959, China was mainly an individual handicraft industry, such as mats, carpets, tents, pottery, iron, wood, stone tools, basket weaving, wine making, etc. Since 1960s, Sangri County has developed small flour processing, oil extraction, machinery maintenance, lime burning and other industries. From the mid-1960s to the early 1980s, nine small hydropower stations were built in China, with a total installed capacity of 345 kilowatts, which were later shut down and scrapped. During the period of 1978- 1986, two three-stage and two-stage power stations were built in the Woka River in China, with a total installed capacity of 10400 kW and an annual power generation of 40 million kWh. 1by the end of 992, the copper concentrator in sangri county was completed and put into operation, and there were only industrial enterprises in the country. In the middle and late 1990s, quarrying teams and stone processing plants were established in Jiangtang, Ji Rong and Chengba Village. In 2004, huaxin cement Factory was put into operation and became the leading enterprise in the building materials industry in Sangri County. In 2007, the western mining group merged and integrated the Chimuda copper mine. After 20 10 years, Sangri County put forward a plan with building materials park, photovoltaic industrial park, plateau characteristic product circulation and headquarters economy as the main body, and introduced four photovoltaic power generation projects: Wuxi Suntech, China Guangdong Nuclear Power Corporation, China Power Investment Corporation and Shanghai Poly GCL.

In 20 13, there were 774 employees in the secondary industry in sangri county, realizing the added value of the secondary industry of 659.7 million yuan; There are 6 industrial enterprises with a total industrial output value of 85 14 1 100 million yuan, including 2 industries above designated size with a total industrial output value of 786.48 million yuan; Four photovoltaic power plants have generated a total of 60.77 million kWh, achieving an output value of 69.89 million yuan; Huaxin cement's production and sales volume was1180,000 tons, achieving an output value of 765 million yuan; The annual output of Woka Power Station is 65.438+0.2 billion kWh, with an output value of 65.438+0.84 million yuan. In addition, there are textile, agricultural products processing, mining, mineral processing and other industries in Sangri County. The secondary industry has become the economic pillar of Sangri County. In 20 13, there were 2,390 employees in the tertiary industry in Sangri County, achieving an added value of1.1400 million yuan, an increase of 20.5% over 20 12.

Commerce and trade

Before the 1960s, there were 14 businessmen in China, who were engaged in the acquisition of simple daily necessities and local products. In Woka, Huobu Beach in Zangga Village and Ferry in Lu Kang Village, material exchange meetings are held in early winter every year. Herdsmen and merchants in northern Tibet exchanged grain, salt, tea, cloth, butter, milk residue, fur and other commodities in the form of barter. The exchange point in Lu Kang Village lasted until the early 1990s. 196 1 Established Sangri County Trading Company, with 2 supply and marketing cooperatives and 5 supply and marketing points in the county. In the early 1980s, individual merchants appeared in county towns. In 20 13, there were 533 individual industrial and commercial households in sangri county, and the total retail sales of social consumer goods was 55 million yuan, an increase of 20. 1% over 20 12. By the first half of 20 15, there were 569 market players in Sangri County with a registered capital of 666 million yuan and 2,883 employees.

tourism

In 2003, Sangri County held the first Woka Material Exchange and Tourism Culture Festival. Since 2009, the number of tourists and tourism income in Sangri County have increased significantly. On 20 10, the development and construction of Ludinglinka, Woka Hot Spring, Dagu Canyon, Sikkim Lako and other tourist attractions began. 20 12 sangri county put forward the tourism orientation of "visiting the lake of wealth, watching red deer, soaking in hot springs and tasting bamboo culture" In 20 13, Sangri County received 47,000 tourists, an increase of12.17% over 20 12. The total tourism revenue was 6.5438+0.492 million yuan, an increase of 654.38+05.7% compared with 2065.438+02.

Financial industry

1964, the people's bank of China sangri county branch and four district credit cooperatives were established one after another. County branch 1969 was abolished and 1978 was re-established. 1995, Sangri County Sub-branch of China People's Bank was renamed Sangri County Sub-branch of Agricultural Bank of China, and was led by Shannan District Central Sub-branch of Agricultural Bank of China. By the end of 20 13, the balance of various deposits of financial institutions in Sangri County was 438 million yuan, an increase of 38% over the end of 20 12, of which the balance of residents' savings deposits was 1. 1.447 million yuan; The balance of various loans was 273.66 million yuan, an increase of 134% compared with the end of 20 12.