New forest region in Daxinganling area of Heilongjiang Province

Xinlin district is a new forest area, which belongs to Daxing'anling area of Heilongjiang Province. Xinlin district is located on the east slope of Daxing'anling mountains and the north slope of yilehuli mountain. Its geographical coordinates are 123 ° 41 ′ e to 125 ° 25 ′ E and 51 ° 20 ′ n to 52 ° 10 ′ n. The district government is located in Xinlin Town, 140 kilometers away from gagdaqi District, where the regional administrative office is located. With a total area of 8702.94 square kilometers, the region has jurisdiction over seven towns. The total population of the region was 43174 (in 2017), with Mongolian, Hui, Korean and other ethnic minorities accounting for about 3.1%. The forest coverage rate is 84%. In 2013, the region's GDP reached 1.57 billion yuan.

Targen town in Xinlin district has geographical coordinates of 52 ° 13 ′ 14 "n and 124 ° 41 ′ 31" E, which are highly consistent with the love vows of "I love you all my life" and "I only love you all my life". It is called "love coordinates", so Xinlin is named "China love town".

Historical evolution

In March 1965, the development plan of the new forest area was completed and the investment and construction was started. It was named "Xinlin Forestry Company", which means "building a new forest area". Originally under the jurisdiction of huma county.

On August 10, 1964, with the approval of the State Council, it was put under the jurisdiction of the great Xing'anling special zone.

In March 1965, Xinlin Forestry Company was established, and a new forest area was set up at the same time.

In 1967, Xinlin Forestry Company was changed into a forestry bureau, which is still "government enterprise integration".

In April 1970, it was under the jurisdiction of Daxinganling region.

In 1992, the new forest area was under the jurisdiction of Daxing'anling region of Heilongjiang Province.

In July 2020, the government and enterprise of Xinlin Forestry Bureau and Xinlin Forestry Bureau will be separated, and Xinlin Forestry Bureau will be managed by Daxing'anling forestry group company.

administrative division

There are seven towns under the jurisdiction of the new forest area, namely Xinlin Town, Cuigang Town, Tayuan Town, dawusu Town, targen Town, bizhou town and Hongtu town. The people's Government of Xinlin district is located in Xinlin town (Note: Xinlin district is not a formal administrative division system at present).

The area under the jurisdiction is divided into four levels: Forestry Bureau (Xinlin Forestry Bureau), forest farm (management and protection area), operation area and forest class. The total operating area of the regional forestry bureau is 869971 hectares. The forestry bureau is divided into 8 forest farms and 2 management and protection areas, namely, Tayuan forest farm, Hongtu forest farm, Xinlin forest farm, dawusu forest farm, bizhou forest farm, Cuigang forest farm, targen forest farm, Fulin forest farm, Linhai management and protection area and fule management and protection area.

geographical environment

geographical position

Xinlin district is located in the east of Daxing'an Mountains, Heilongjiang Province, on the north slope of yilehuli mountain. Its geographical coordinates are 123 ° 41 ′ e to 125 ° 25 ′ e, 51 ° 20 ′ n to 52 ° 10 ′ n, 108 km long from north to south, 103 km wide from east to West, with a total area of 8702.94 square kilometers. Xinlin district is adjacent to huma County in the East, Songling District in the south, Huzhong District in the West and Tahe County in the north.

topographic features

Xinlin district is located at the junction of Erguna and handaqi Xinglong stratigraphic divisions, including Tahe and Xinglong stratigraphic districts, where the strata are relatively developed.

The intrusive rocks are widely distributed in this area, with the characteristics of multi cycle and multi-stage activities. Xinlin tectonics is located in the junction of two secondary tectonic units, Tahe transitional zone and Xinglonggou maogeosynclinal fold zone. The geological structure is relatively complex, and the sedimentary formation, magmatic intrusion, volcanic activity, metamorphism and mineralization are all multicycle, especially the Daxinganling volcanic rock belt formed in Mesozoic era and the Indosinian and Yanshanian granite belt. The multi-directional faults formed in each tectonic period interweave and crisscross, destroying the integrity of the old strata and rock mass, which is of great significance to the study area The diagenesis and mineralization are controlled by classification. According to the discovered minerals in the area, they are obviously controlled by strata, intrusive rocks and geological structures.

climatic conditions

Xinlin district is located in the north of 51 ° 20 ′ n, which is a cold and humid climate area. The annual and daily temperature ranges are very large. The annual average accumulated temperature is less than 1600 ℃, which belongs to the cold temperate continental climate. The territory is characterized by continuous hills, vertical and horizontal rivers, dense forests, relatively high altitude, and obvious mountain climate. The winter is cold and long, the diurnal range is large in spring and autumn, and the wind is strong.

The annual average temperature in the new forest area is - 2.6 ℃, which is higher than that in the new forest area, especially in 2013. By 2014, the highest temperature has reached 37.9 ℃, and the lowest temperature has reached - 50.1 ℃. The annual precipitation is 513.9mm, and the distribution is uneven. The main precipitation is concentrated in July to August. The freezing period of the whole year is about 7 months. The freezing period is usually in late September, and the final freezing period is in the middle and late April. The first frost appeared in late August, and the average frost free period was about 90 days. The annual sunshine hours are 235.7 hours, and the sunshine percentage is 51-56%. The annual dominant wind direction of the new forest area is southwest wind, which is affected by the yilehuli mountains. The north is mostly valley wind. The monsoon of the northern forest farm is obvious. In summer, it is affected by the Pacific warm wind, which is mostly southeast wind. In winter, it is controlled by the West Siberian cold current, which is mostly north wind or northwest wind. Due to mountain obstacles and dense forests, the wind speed is small, the annual average wind speed is generally 2-3 M / s, and the average is 3 M / s from April to May. The number of strong wind days is about 10 days, mainly in May, but the wind speed also increased in 2014.

hydrology

The water system of Xinlin district is an outflow basin, which flows into the Heilongjiang Basin of the Pacific Ocean. It belongs to the humid zone and the watery zone of the surface flow zone.

Xinlin district has dense valleys. The rivers in the area belong to the Huma River system, and its tributary Tahe runs through the north and south of the region, which is the largest river in the region. The main tributaries of Tahe River are dawusu River, silesi River, Gangan River, etc. Wulegen river is a tributary of Huma River in the northeast. The outer wulegen river originates in Cuigang town and the inner wulegen river originates in Shalan mountain in Fulin. The water area of the whole region is 423   08.3 mu, accounting for 0.003% of the total area. The length of Tahe River is 130 km, the average width is 60 m, the water depth is 2-3 m, the water surface area is 11700 mu, the annual average second flow is 20.95 cubic meters, and the annual maximum second flow is 341 cubic meters. The groundwater in the area can be divided into two types: loose rock frozen layer water and bedrock fissure water, and bedrock fissure water can be divided into structural fissure frozen layer water and weathered fissure frozen layer water.

natural resources

plant resources

In 2013, the forestry land area of Xinlin Forestry Bureau was 8458.89 square kilometers, the non forestry land area was 240.82 square kilometers, and the forest recovery rate was 84.25%. As of 2006, the total volume of standing trees in the new forest area is 70176896 million cubic meters.

The vegetation in the new forest area belongs to the cold temperate coniferous forest zone of Daxinganling Mountain, which is the South extension part of Siberian mountain coniferous forest. Due to the influence of climate conditions, the plant species in Xinlin are relatively poor. According to the results of professional investigation, 465 species of wild plants belonging to 235 genera and 70 families were collected. The flora of East Siberia is the main plant species, and there is a small amount of northeast floristic elements. The main tree species are Larix gmelinii, Pinus sylvestris var. mongolica, spruce, Betula platyphylla, Populus davidiana, sweet poplar, Korean willow and a small amount of black birch, oak, etc.; the main shrubs are Pinus elliottii, Rhododendron Xing'an, red poplar, birch bush, marsh willow, Spiraea, Sorbaria sorbifolia, Rosa davurica, Sabina chinensis, etc.; there are many kinds of herbs, which are widely distributed under different site conditions and forest types Most of them are Cyperaceae, arboraceae and red blueberry.

There are abundant economic plant resources in the territory, mainly including Ledum odoratum, yageda (red blueberry), Dushi Blueberry (blueberry), Astragalus membranaceus, Sanguisorba officinalis, sea cucumber, lily of the valley, Geranium sibiricum, ferns, bupleurum, daylily, etc. Medicinal plants: Astragalus membranaceus, Radix Glehniae and Lily in tonifying and strengthening; plantain and Qumai in diuretic and water removing; red spoon and Yuanhu in regulating blood; Duxiang, Baizhi, Dujuan and Platycodon in relieving cough and asthma.

The main edible plants are: cat claw (pteridophyte), Hericium erinaceus, Auricularia auricula, daylily, stinky plum (thick plum), sorghum fruit (Oriental strawberry), straw mushroom, oil mushroom, sea cucumber, goat milk, rose fruit, shandingzi, mountain grape, persimmon (blueberry), etc.

Industrial plants mainly include: Pinus sylvestris var. mongolica, Larix gmelinii, Pinus massoniana (Pinus sylvestris), Rhododendron dactylon (Rhododendron gmelinii), Ledum angustifolia, peat, etc.

Ornamental plants mainly include: Pinus sylvestris var. mongolica, Larix gmelinii, Pinus massoniana (Pinus sylvestris), Rhododendron dahliae (Rhododendron gmelinii), daylily, Prunus plums (Prunus plums), Rosa davurica.

Animal resources

There are 29 kinds of mammals in the region. Precious mammals mainly include red deer, moose, sable, lynx, otter, brown bear and snow rabbit. Fur mammals include squirrel, flying mouse, muskrat, sika deer, Swertia, bear, roe deer, fox, wolf and wild boar. High value fur mammals include sable, mink, lynx and otter. Medicinal mammals include musk deer, hedgehog, red deer, moose, brown bear and badger. Among them, sable, mink bear and musk deer are listed as the first class national protected animals, brown bear, lynx, red deer, moose, otter and snow rabbit are listed as the second class national protected animals. There are 69 species of wild birds in the Bureau. In summer, the dominant birds are grey headed crow, brown headed tit, tree, etc. the common species are sparrow, spotted woodpecker, yellow breasted crow, woodpecker, sparrow, crow, crow, mallard, Roman duck, green headed diving duck, green winged duck, Chinese merganser, long tailed tit, great azalea, magpie, golden waist swallow. In winter, the dominant species of bird investigation are cinnabarinus, tit, hazelnut, brown headed tit, and the common species are hongjiaozui, Rhododendron, etc,

Chinese PinYin : Hei Long Jiang Sheng Da Xing An Ling Di Qu Xin Lin Qu