Distribution of resources in Xiaoxing 'an Mountains

The rivers in Xiaoxing 'anling mountain area mainly include Xunhe (Xunbiela River), zhanhe and WuYun He in Heilongjiang River system, Hulan River and Tangwang River in Songhua River system, which form the watershed between Heilongjiang River system and Songhua River system.

Xunhe, also known as "Xunbiela River" (also known as "Xunbiela"). A larger tributary of the south bank of the middle reaches of Heilongjiang. Located in the north of Heilongjiang Province. The full name of "smoked" is "milk slurry". Originated in Xiaoxing 'anling in the west of Heihe City, it gathers several tributaries, flows through Sunwu and Xunke County from west to east, and flows into Heilongjiang near Cheluwanzi Village in Xunke County. The total length is 279 kilometers, the river width is 70- 100 meters, the water depth is 0.8-2 meters, and the drainage area is 15868 square kilometers.

Gongbiela River, a tributary of the right bank of the middle reaches of Heilongjiang. Located in the south of Heihe city. Originated in Daheishan in the northern section of Xiaoxing 'anling, it winds from west to east and flows through Jinhe Farm and Xigangzi Town. , in He Kun Daur Manchu township into Heilongjiang. The total length is 14 1 km, the river width is 4-60m, the water depth is1.5-3m, and the drainage area is 2765 square kilometers.

Chenqinghe River is a secondary tributary of the south bank of Heilongjiang. Located in the southwest of Sunwu County. Originated in the west side of the northern section of Xiaoxing 'anling, it flows through the north of wudalianchi city and the southwest of Sunwu County, and joins the Xunhe River in the north of Sunwu County. The total length is 105km, the river width is 33m, the water depth is 1.2m, and the drainage area is 2067km2. The freezing period is165438+1early October to mid-April of the following year. The basin is an agricultural area, producing wheat, corn, potatoes and so on. Chen Qing Town is named after this river.

Woniu River, a secondary tributary on the south bank of Heilongjiang. Located in the west of Sunwu County. Originated in Heihe City on the east side of the northern section of Xiaoxing 'anling, it flows through the Second Branch of Hongbian Farm and Yaotun Township, and joins Xunhe River near Niuhe Village in Dongwo. The total length is 95km, the river width is 8 8- 10/0m, the water depth is 0.4-0.7m, and the drainage area is 14 16 km2.

Maolan River, a secondary tributary of the south bank of Heilongjiang. Located at the junction of Sunwu and Xunke counties. Originating at the northern foot of Xiaoxing 'anling Mountain, it flows from south to north through the struggle boundary, mountains, Yaotun Township of Sunwu County, Xin 'e Township of Xunke County and Xunhe Town, and joins the Xunhe River north of the Huqi River mouth. The total length is 63 kilometers, the river width is 15 meters, the water depth is 0.6 meters, and the drainage area is 1 127 square kilometers.

Zhanhe, also known as "Chambere River". Secondary tributaries on the south bank of Heilongjiang. Located in the west of Xunke County. Originated at the northern foot of Xiaoxing 'anling Mountain, it winds northward, flows through Xiangyang Mountain, Xin 'e and other towns, and joins Xunhe River near Shuanghe Village in Xunhe Town. The total length is 260 kilometers, the river width is 40 meters, the water depth is 1 meter, and the drainage area is 6578 square kilometers.

Dulu River, a tertiary tributary on the south bank of Heilongjiang. Located in the southwest of Xunke County. Originated in the northern slope of Xiaoxing 'anling, it flows northwest from the source and flows into zhanhe near Hekou Village in Xin 'e Township. Total length 1 12km, river width of 29m, water depth of 0.5m and drainage area of 1663km2.

Wudi River, a secondary tributary of the south bank of Heilongjiang. Located in the middle of Xunke County. Originated in the northern slope of Xiaoxing 'anling, it flows from south to north and joins Xunhe River near Xingya Village in Songshugou Township. The total length is 88 kilometers, the river is 20 meters wide, the water depth is 0.5 meters, and the drainage area is 98 1 square kilometer. Mountain streams and rivers.

Kuer River, a tributary of the south bank of the middle reaches of Heilongjiang. Located in Xunke County. Originated at the northern foot of Xiaoxing 'anling Mountain, it flows from south to north through towns such as Kelin, Dapingtai and Baoshan, and flows into Heilongjiang near Limin Village in Chelu Township. The total length is 22 1km, the river width is 30-65 m, the water depth is 1.5m, and the drainage area is 4968 square km.

Pierre River, a secondary tributary of the south bank of Heilongjiang. Located in the middle of Xunke County. Originating at the southern foot of Pierre on the northern slope of Xiaoxing 'an Mountains, it flows from southwest to northeast and joins the Kuer River near Erpihe Village. The total length is 77 kilometers, the river width is 22 meters, the water depth is 0.6 meters, and the drainage area is 1324 square kilometers.

Five Yun He, a tributary of the south bank of the middle reaches of Heilongjiang. Located in the north of Heilongjiang Province. It was called Wuyi River and Wuyin River in ancient times. "Uyi" means "forest" in Mongolian. Originated in the northern slope of Xiaoxing 'anling, it flows through the northern junction of Yichun City, Xunke County and Jiayin County, and flows into Heilongjiang near Shuanghe Town. Total length130km, river width 35m, water depth 0.8m, and drainage area 246 1 km2.

Jielie River, a tributary of the south bank of the middle reaches of Heilongjiang. Located in the middle of Jiayin County. Shouhu Mountain, which originated in Xiaoxing 'anling, flows through Shouhu Mountain, Yulin, Tuanjie and other forest farms from south to north, and flows into Heilongjiang along the river in Tunbei. It has a total length of 77 kilometers, a river width of 9-28 meters, a water depth of 0.4-0.7 meters and a drainage area of 999 square kilometers.

Wulaga River, a tributary of the south bank of the middle reaches of Heilongjiang. Located in the south of Jiayin County. Originated in the east of Xiaoxing 'anling, it flows from southwest to northeast, through Wulaga Town and Baoxing Township, and flows into Heilongjiang near Baoxing Village. The total length is 75 kilometers, the river width is 30 meters, the water depth is 0.9 meters, and the drainage area is 120 1 square kilometer. The freezing period is165438+1early October to mid-April of the following year.

Jiayin River was once named Zhaihe, Jin Jia River and Chayi River. South bank tributary of the middle reaches of Heilongjiang River. Located in the north of Heilongjiang Province. Originated in the east of Xiaoxing 'anling, it flows through the junction of Hegang North and Jiayin and Luobei counties, and flows into Heilongjiang in Jiayin Hekou Village. The total length is 129 km, the river width is 60 m, the water depth is 1.2 m, and the drainage area is 2099 square km.

Eugen River, the second tributary of Songhua River. Located in the middle of Heilongjiang Province. Originating at the southern foot of Xiaoxing 'anling, it flows through the northern part of Qing 'an County and joins the Hulan River in the southern part of Zhifu Township. Total length 174 km, river width 12-80 m, water depth of 0.5-4.0 m, and drainage area of 2002 square kilometers.

Ikimi River, a secondary tributary of Songhua River. Located in the middle of Heilongjiang Province. Originated at the top of Guo Kui in Xiaoxing 'anling, it flows through the junction of Qing 'an County and tieli city, and flows into Hulan River in the east of Qingfeng Village in Qing 'an County. Total length 103km, river width 15-60m, water depth 0.6-4.0m, and drainage area 1777km2.

Anbang River, once called "Anbang River", is also called "Anbai River". The second tributary of Songhua River. Located in the middle of Heilongjiang Province. Originated in the west slope of Pingdingshan, a branch of Xiaoxing 'anling Mountain, it flows from southeast to northwest, flows through the junction of tieli city and Qing 'an County, and joins the Hulan River in the north of Ping 'an Town of Qing 'an County. Total length 102km, river width 7- 18m, water depth 0.5- 1.5m, and drainage area 904km2.

Nihe River, the second tributary of Songhua River. Located in the middle of Heilongjiang Province. It was called "Haohe" in Qing Dynasty. Originated in Gongjiafen Mountain, a branch of Xiaoxing 'anling Mountain, it flows through the junction of Bayan County and Suihua City, Lanxi County and Hulan County, and flows into Hulan River to the west of Bajia Village in Hulan County. The total length is 240 kilometers, the river width is 15-20 meters, the water depth is 0.5- 1.0 meters, and the total drainage area is 1500 square kilometers.

A tributary of the north bank of the main stream of Songhua River in Zhaoling River. Located in the middle of Heilongjiang Province. Jin is called "leading water" (also called "handsome water"), and Qing is called "Shuoluo River" or "Chule River". Originated in Qingfeng Ridge, the remaining vein of Xiaoxing 'an Mountains, it flows through the northwest of Mulan County and the middle of Bayan County, and joins the Songhua River near Jiangjiadian in Bayan County. Total length 135km, river width of 8-40m, water depth of 0.4- 1.0m, and total drainage area of 2468km2.

Mulan River, that is, the Great Muranda River. North bank tributary of Songhua River main stream. Originated in the southern foot of Xiaoxing 'anling in the north of Mulan County, there are two sources, one is Moyun Dingzi and the other is the southern foot of Qingfeng Mountain. After merging, it flows westward and southward to the Songhua River near Linjiang Village, Mulan County. Total length110km.

Balan River is a tributary of the left bank of Songhua River. Located in the middle of Heilongjiang Province. Originated in the north of Wuhua Dingzi in Xiaoxing 'an Mountains, it flows through the southeast of tieli city and the northwest of yilan county, and joins the Songhua River near Yinglan Village in yilan county. Total length 108km, river width 20-60m, water depth 0.3- 1.0m, and total drainage area 2075km2.

Tangwang River, the main tributary of the left bank of Songhua River. Located in the north-central part of Heilongjiang Province. Tao Wenshui in Yuan Dynasty, Tunhe and Tuowenjiang in Ming Dynasty, Tunhe and Tangwang River in late Qing Dynasty. "Tang Wang", Manchu, means "spring" or "morning light"; Say the meaning of "island". Originated at the southern foot of the western slope of Xiaoxing 'anling, there are two main sources in the east, Tangwang River and Tangwang River in the east. Two streams flow from north to south through Yichun, Tieli and Tangyuan, and they flow into Songhua River about 5 kilometers southwest of Tangyuan County. The total length is 509 kilometers.

Wang Xitang River, a secondary tributary of Songhua River. Located in the north of Yichun city. Originated in Yushan River area in the north of Yichun City, it flows through Gao Feng, Erlong Mountain, Dongsheng, Shilin and other forest farms from northwest to southeast, and joins Dongtangwang River (the main stream of Tangwang River) to the east of the central nursery. It has a total length of 64 kilometers, a river width of 9 meters, a water depth of 0.5 meters and a drainage area of 533 square kilometers.

Youhao River is a secondary tributary of Songhua River. Located in the west of Yichun city. Originated in the east side of Xiaoxing 'anling Mountain, it flows from northwest to southeast, flows into Xiyouyi River on the north side of Guang Chuan Forest Farm, and flows into Tangwanghe River on the east side of the resident of Friendship District Government. The total length is 83 kilometers, the river width is 12-35 meters, the water depth is 1.0- 1.8 meters, and the drainage area is 948 square kilometers.

Shuangzi River, the second tributary of Songhua River. Located in the west of Yichun city. Originated in the southern slope of Xiaoxing 'anling. There are two sources: East Kartai River and West Kartai River, which are called "twin rivers" after they meet in Ping Ling work area. Passing through Shaxian Village, Dense Forest Village and Xing 'an Village. It flows from northwest to southeast and joins the Tangwang River near Shuangzihe Town. The total length is 77 kilometers, the river is 20-35 meters wide, the water depth is 1.5-2.0 meters, and the drainage area is 12 16 square kilometers.

Yichun River, a secondary tributary of Songhua River. Located in the west of Yichun city. Originated in the southern slope of Xiaoxing 'anling, it is formed by the confluence of Mohe River, Cui Luan River and Dangshi River. It turns eastbound in the south of Cui Guang Village, passes through Cui Luan, Wuma River and Yichun, and joins Tangwang River near Yichun City. The total length is 84 kilometers, the river width is 35-60 meters, the water depth is 0.7- 1.2 meters, and the total basin area is 2466 square kilometers.

Southwest Chahe River, the second tributary of Songhua River. Located in the south of Yichun city. Originating at the southern foot of Guo Kui Ding in Xiaoxing 'anling, it flows from northwest to southeast, turns east after reaching "five kilometers", crosses Nancha District and joins Tangwang River near Lutan Village. The total length is 85 kilometers, the river width is 8-24 meters, the water depth is 0.5 meters, and the total basin area is 2735 square kilometers.

Alinda River, a tributary of the left bank of Songhua River. Located in the middle of Tangyuan County. According to the newly compiled Tangyuan County Records, the name "Alingda River" comes from "Wulinda", which is the place where Wulinda, a jurchen of Liao Dynasty, lived. Originated in the south of Motianling in Xiaoxing 'anling. From the source to the southeast, from the east side of Pangjiadian to the north side of Heli Town, it is the boundary river between Hegang and Tangyuan County and joins the Songhua River near Dexiang Village in Jixiang Township. The total length is 76 kilometers, the river width is 10- 16 meters, the water depth is 0.8-10.5 meters, and the drainage area is 550 square kilometers.

Wu Tong is a tributary of the left bank of Songhua River. Located in the northeast of Heilongjiang Province. Liao called it "main river", Jin called it "bare water", Qing called it "Wutun River" and "Wutun River", and it was called "river" in the late Qing Dynasty. Originated in Xiaobaishan, a branch of Xiaoxing 'anling, it flows through the northern part of Hegang, the junction of Hegang and Luobei County, the eastern part of Tangyuan County, and joins the Songhua River in the eastern part of Wutonghe Farm. The main tributaries are Xiwutong River and Heli River. The total length is 207 kilometers, the river width is 30-70 meters, the water depth is 1-2 meters, and the total basin area is 4763 square kilometers.

The second tributary of Songhua River, Helihe River. Located in the south of Hegang. Originated in the Xiaoxing 'an Mountains in Qinghai and Montenegro. The upper reaches are called "Heli River", the middle reaches are called "Li Dahe River", and the tributaries are called "Heli River" when they meet. From northwest to southeast, it flows into Wutong River. The total length is 69 kilometers, the river is 50 meters wide, the water depth is 1.0- 1.5 meters, and the drainage area is 879 square kilometers. It belongs to a continuous flowing river.

Dulu River, a tributary of the left bank of Songhua River. Located in Luobei County, northern Heilongjiang Province. It was called Torun River, Le Tu River and Tulu River in ancient times. "Tulu" means "white-bellied trout" in Mongolian. Originated in the eastern slope of Xiaoxing 'anling Mountain, it flows through the western part of Luobei County from north to southeast and joins the Songhua River at the junction of Luobei County and Tangyuan County. The total length is 245 kilometers, the river is 8-20 meters wide, the water depth is 1.2-2.0 meters, and the total drainage area is 1798 square kilometers. Xiaoxing 'anling is endowed with unique natural ecological conditions, with an average annual temperature of -2℃-2℃, an average annual rainfall of 500mm and a frost-free period of about 100 days. Many precious trees, such as Korean pine, have become national key timber forest bases. The forest area is 6.5438+0.206 million hectares, including more than 5 million hectares, and the forest stock is about 450 million cubic meters. At present, the stock of Korean pine is more than 43 million cubic meters, accounting for more than half of the total stock of Korean pine in China. Known as the "hometown of Korean pine". Larix gmelinii and Pinus sylvestris var. mongolica. Mongolian oak and "three hard boards" (Juglans mandshurica, Fraxinus mandshurica and pineapple) are also planted. There are many rare birds and animals living in the deep mountains and dense forests, and there are rich wild plant resources. Many mountains are buried with copper, iron, lead, zinc, gold and other metal mineral resources, and more than ten kinds have been mined. After the founding of New China, Xiaoxing 'anling was fully developed, and 24 forestry bureaus were established successively, which provided a large amount of timber for national construction for more than 40 years, and Yichun City, the largest forestry city in the world, was established in the hinterland of Xiaoxing 'anling. A national "LAM Raymond Nature Reserve" with the main purpose of protecting Korean pine was established in Wuying area.

Important forestry management institutions in Xiaoxing 'anling forest region are:

Liangzi Hemulin Forest Farm, located in Tangyuan County, is located in the northwest of the county, at the southern foot of Xiaoxing 'anling Mountain and upstream of Liangzi, hence the name "Liangzi River Forest Farm". Founded in 196 1, it belongs to Heilongjiang Shelterbelt Research Institute. The terrain of the site is trapezoidal, with an altitude of 74 1 m. The whole site covers an area of/kloc-0.07 million mu, including woodland/kloc-0.03 million mu. The forest stock is 870,000 cubic meters, of which the stock of Korean pine mother forest is about 6.5438+0.6 million cubic meters. The main task of the forest farm is to manage and nurture the mother forest. According to statistics, by 1988, 2 10000 cubic meters of wood will be produced, 930000 kilograms of Korean pine seeds will be collected, and the capital will be recovered1120000 yuan, which is equivalent to 7 times of the construction investment. From 65438 to 0987, the forest park was established in the forest farm, with scenic spots such as viewing area and hunting area.

Wulahun Forest Farm is located in the southeast of Tonghe County and belongs to the Forestry Department of Heilongjiang Province. 196 1 year 1 seed orchard with an area of 600 mu. The forest farm is located on the south slope of the branch of Xiaoxing 'an Mountains, with an altitude of 700 meters and a total area of 224,000 mu, including woodland180,000 mu and woodland150,000 mu, more than 90% of which are natural secondary forests, with a forest volume of 730,000 cubic meters. After the establishment of the forest farm, the policy of "tending, afforestation and management at the same time" was implemented, with a total afforestation of 80,000 mu and a preservation area of 36,000 mu, and comprehensive utilization and diversified management of wood were carried out. The comprehensive utilization of wood includes wood processing, wood chipping and so on. Diversified businesses include quarrying, ginseng cultivation and forest hunting.

Central Station Forest Farm, located in the north of Nenjiang County, was built in 1952. It belongs to Nenjiang Forestry Bureau. Formerly known as Central Station Forest Management Office, 1956 was renamed as "Central Station Forest Farm". 1979, approved by the Ministry of Forestry, was named "Natural Larch Seed Forest Farm". Jurisdiction center station and Jiangwan two application areas. The forest farm is located at the west foot of Xiaoxing 'anling Mountain and the left bank of Nenjiang River, which is a hilly area with an altitude of 400-600 meters. The forest is dense, and the main tree species are Larix gmelinii, Betula platyphylla, Quercus mongolica and Populus davidiana. It belongs to coniferous and broad-leaved mixed forest area. The site covers a total area of 480,000 mu, including 339,000 mu of forest land, and the forest volume165438+1more than 100,000 cubic meters. Among them, the mother forest area is 6.5438+0.3 million mu, and the forest volume is 250,000 cubic meters. In recent years, * * * has selected 65,438+10,000 middle-aged Larix gmelinii mother forests, becoming one of the natural Larix gmelinii mother forest bases in Heilongjiang Province.

Taoshan Forestry Bureau has a large area of Korean pine virgin forest, pineapple, Fraxinus mandshurica and Juglans mandshurica. Animals include red deer, black bear, wild boar, roe deer, sand pheasant, hazel chicken and so on. There is a natural ancient cave on the northern slope of Taoshan Mountain, which is 20 meters deep, 4 meters wide and 8 meters high. In the late Qing Dynasty, there were bronze statues of Guanyin Bodhisattva, which were called "Fairy Cave". 1982, the State Council approved the opening of China's first natural wildlife feeding and hunting ground in Taoshan, with an area of 2 10 square kilometers. Animals available for hunting include red deer, black bear, wild boar, roe deer, fox, raccoon, hare, weasel, ferret, sand pheasant, hazel pheasant and so on. 65438-0983 The State and Heilongjiang Province established China branch of a travel agency in Taoshan to receive foreign guests and compatriots from Hong Kong and Macao. There are three campsites in the hunting ground, with a building area of 880 square meters. There is also a Taoshan ski resort in the northeast of Taoshan Town. metallic minerals

Iron deposits are located in Xiaoxing 'anling area, mainly distributed in Daxilin Iron Mine in Yichun City (1), 1967 and 1969, which were investigated and explored twice by the Third Geological Team of Heilongjiang Geological Bureau. (2) Cuihongshan iron polymetallic deposit in Xunke County is the largest iron polymetallic deposit in Heilongjiang Province. In addition to a certain amount of iron ore, the reserves of molybdenum, tungsten, copper, lead and zinc have been proved, which proves that molybdenum and tungsten are large deposits and iron and lead-zinc mines are medium-sized deposits. (3) Wuxing Iron Mine in Yichun and Damahe Iron Mine in Luobei are both small deposits. Yichun Wuxing Iron Mine.

Copper resources are distributed in Duobaoshan Copper Mine in Nenjiang County, with proven copper reserves of 654.38+0.9 million tons. At that time, due to the low grade of copper and the small scale of ore body, the exploration work could not continue. Fudiyingzi small copper-rich zinc deposit in Heihe city. The ore is dense and massive, with an average copper grade of more than 2%, accompanied by zinc, sulfur, gold, silver, cadmium and gallium, which has comprehensive utilization value. There are lead-zinc deposits in Lin Xiaoxi area of Yichun City, which is the largest lead-zinc deposit in Heilongjiang Province. Scheelite is also distributed in Xiaoxing 'an Mountains. Most of the deposits are large and medium-sized, and their grades are generally high, with an average grade of 0.3-0.4%. For example, the Cuihongshan iron polymetallic deposit was originally developed for iron ore mining. Therefore, the iron ore is only medium-sized, while the tungsten and aluminum ores are very large, which makes it a large skarn scheelite deposit dominated by tungsten and molybdenum.

There are abundant placer gold resources in the upper reaches of Dulu River in Luobei County of Xiaoxing 'an Mountains and along Wulaga River in Jiayin County. Wulaga Town is a famous gold producing area, and Wulaga Gold Bureau is directly under the Ministry of Metallurgical Industry. There is a site of Wulaga silicified wood on the south bank of the middle reaches of Wulaga River, which is a cultural relic protection unit in Heilongjiang Province.

coalfield

Coal resources are widely distributed in Xiaoxing 'anling area, mainly including:

Hegang coalfield (mining area) is dominated by fat gas coal, followed by fat coking coal, weak caking coal, fat coal, lean coal and anthracite. The main coal seam is low sulfur and low phosphorus coal. Raw coal ash is generally 15-30%, volatile matter is 29.6-37.8%, and calorific value is 5756-6800 kcal/kg. After the founding of New China, five new coal mines, Xinyi, Xing 'antai, R&F, Lingbei Open-pit and Junde, were built in Hegang Mining Area, and three old mines (wells), Xingshan, Nanshan and Mainland China, were rebuilt and expanded.

Xigangzi Coalfield in Aihui County, the coal quality is lignite, the ash content of raw coal is 33.97%, the volatile matter is 43.25438+0%, and the calorific value is 46 16 kcal/kg. There are three coal mines in Xigangzi coalfield, namely Dongfanghong, Xigangzi and songji Tun. The coal produced is mainly for local use.

Yilan (Dalianhe) coalfield belongs to long-flame coal, with raw coal ash 19.97%, volatile matter 46.5 1% and calorific value of 7500 kcal/kg. In addition, the middle oil shale of Dalianhe Formation contains oil shale, which is another favorable ore bed in this area. There are three large open-pit mining areas in Yilan mining area, with a design scale of 6.5438+0.7 million tons of raw coal per year.

Wuyun coal mining area in Jiayin county, Tertiary is the coal-bearing stratum in this area, which is composed of siltstone, mudstone and coal seam. The coal seam is produced in the upper part, with mudstone, totally 4 layers, including 2 minable coal seams, with a thickness of1.2m. The coal quality belongs to lignite. Raw coal ash content is 6.95%, volatile matter is 34. 18%, and calorific value is 45 12 kcal/kg.

Luobei coal mine production area in Luobei county is a Jurassic coal-bearing stratum in this area, which is composed of sandstone, conglomerate and shale interbedded. There are two layers of coal in Tuoluo Mountain area, with a thickness of about 0.5 meters and a maximum of 2 meters. There are three layers of coal in Duluhe area, which can be mined 1 layer and is1.2m thick. The coal quality belongs to weakly sticky coal, with raw coal ash 17.69%, volatile matter 36. 1% and calorific value 4850 kcal/kg.

Ma Ziliang coal-producing area is located in Suiling County. The Jurassic coal-bearing strata in this area are composed of sandstone, siltstone, shale, carbonaceous shale, tuff and coal seam. Coal has 13 layers, of which 2-6 layers are recoverable, and the thickness of coal seam is generally around 1 m. The roof and floor of coal seam are mudstone and sandstone. The coal quality belongs to lignite, with raw coal ash 12.30%, volatile matter 45.62% and calorific value 4254 kcal/kg.

Yichun City is a coal-producing area in Yichun. The Upper Jurassic is a coal-bearing stratum in this area, which is composed of gray-white coarse-grained sandstone, medium-grained sandstone, gray-black shale and coal seam. There are 3 coal-bearing layers, of which 1 layer is recoverable and some are recoverable. Coal seam is generally about 0.6- 1 m thick, and its thickness is unstable. The thickness of the shallow part can reach 2 meters, which varies greatly along the strike and will become thinner or even pointed out in a short distance. The coal quality belongs to long-flame coal, with raw coal ash 17.46%, volatile matter 43.68% and calorific value 546 1 kcal/kg.

Guanyinshan in Jiayin County has considerable reserves of Na-based Peng Runtu.

Yaoquan Mountain is famous for its mineral water, and is called "Shenshui". Nanquan, Beiquan, Fan Hua and Nanxi Springs in the east of Yaoquan Mountain contain many elements and have high medicinal value. Drinking and soaking have obvious curative effects on digestive, blood and nervous system diseases, especially on skin and alopecia. There are Nanyin Spring, Yinbeiquan, Fanhuaquan and Nanxi Spring near Yaoquan Mountain, which are famous cold water carbonated mineral springs in China. Mineral water contains oxygen, silicon, iron, calcium, sodium, potassium, magnesium and other elements. Drinking and washing can treat gastrointestinal diseases, skin diseases, nephritis and other diseases.