Forest farm under the jurisdiction of Dalianhe Town

Mountain range: the forest farm is dominated by hilly landform, with hilly lowlands from north to south, and the terrain is high in the south and low in the north. The average altitude is112m, and the highest altitude is 463m.

Water system: China has few river networks and few water resources. * * * There are four small rivers in China, which are tributaries of Mudanjiang, the Songhua River system, mainly including Zhuqi River, South Erdao River, North Erdao River and Mudanjiang, among which Mudanjiang is the longest river with a flow of 30 kilometers. Climate: It belongs to the mid-temperate continental monsoon climate, with cold and dry winter, concentrated precipitation in summer, warm and humid climate, changeable weather in spring and autumn, annual average temperature of 3. 1℃, annual precipitation of 562mm, frost-free period 132 days, annual sunshine time of 24 15 hours and annual average accumulated temperature of 2700℃. The main wind direction is northwest wind. According to the climate characteristics, April-May is spring, June-August is summer, September-65438+1October is autumn, and165438+10-March is winter.

Soil: * * It is divided into 3 soil types and 5 subclasses. From the perspective of soil distribution, it changes with altitude. The distribution order of low-lying land and river bank soil below 300 meters above sea level is swamp soil, dark brown soil and albic soil. The soils distributed in mountainous areas with an altitude of 300-400 meters include dark brown soil, white pulp dark brown soil and typical dark brown soil. Vegetation: it belongs to the flora of Changbai Mountain, and the main forest phase is soft and broad-leaved mixed forest. The main tree species are oak, manchurian ash, walnut, pineapple, linden, poplar, birch, elm, colored wood and Pinus sylvestris var. mongolica. Mongolian oak, larch, etc. Shrubs include hazelnut, Lespedeza, Zizania latifolia and so on. And there are 100 kinds of herbs. Among them, Chinese herbal medicines include acanthopanax senticosus, rhododendron manshurica, yellow flower and so on. Wild vegetables mainly include bracken and Osmunda japonica. Lianas include Vitis amurensis and Actinidia chinensis. Fungi include Yuan Dynasty, Huang Dynasty, hazelnut and so on. Wild animals: mainly rabbits, snakes, rats, badgers, foxes, pheasants, dragons, wild ducks, roe deer, wild boar, black bears and so on.