What are the characteristics of tundra climate and coniferous forest climate?

The coniferous forest climate in the sub-frigid zone, also known as the sub-polar continental climate, is mainly distributed in Eurasia and northern North America, and the latitude is about 50 to 55 or 65 north latitude. Because there is not much water vapor in the air and evaporation is weak, it still belongs to a humid climate. Precipitation is concentrated in summer because the summer temperature is high and there is a lot of water vapor in the air, including cyclone rain and convective rain; In winter, the temperature is low, the water vapor content is low, and it is controlled by the sinking continental anticyclone, so there is little precipitation in winter. Coniferous forest climate in sub-cold zone is rich in forest resources, and forestry is often developed.

trait

Winter is long and cold, and the average monthly temperature is below 0℃. Summer is short and warm, the monthly average temperature is above 10℃, and the annual precipitation is 300 ~ 600 mm Due to weak evaporation, the relative humidity is high. The temperature is the highest all year round. This is because this area is the source of polar continental air mass, with high latitude, long night time in winter, small solar altitude angle at noon, snow and strong ground radiation cooling, which is beyond the adjustment of ocean air mass. It extends from east to west into a wide and narrow strip. Because of its high latitude, the winter is long and cold. The warm season is short, and the temperature is particularly high all year round. Summer precipitation is scarce and concentrated, but the temperature is low, evaporation is weak and relative humidity is high. Natural vegetation is coniferous forest.

Distribution of animals and plants

The plants and animals in the coniferous forest in the sub-cold zone are mainly cold-resistant conifers such as larch and spruce, which are important timber trees in the world with slender needles and thick cuticle. Other tree species are relatively simple, unlike the variety of plants in tropical rainforests. Many animals have thick fur, such as bears, foxes and squirrels. Typical animals are reindeer, mink and so on.

Climate distribution

North America: From Alaska to Labrador and most parts of Newfoundland via Canada.

Eurasia: It is distributed from the north-central Scandinavia to the east via Finland and the western part of the former Soviet Union (the southern boundary is Leningrad-Gorky-Sverdlovsk line) and the eastern part of the former Soviet Union (except the south), and the northern part is separated from the polar long cold climate by the annual possible evapotranspiration of 350 mm. ..

Main weather

Influenced by the polar ocean air mass and the polar continental air mass, and as the source of the polar continental air mass, it is often attacked by the Arctic air mass in winter and sometimes by the tropical continental air mass in warm season.

Natural belt

Coniferous forest in sub-cold zone. Coniferous forests in the sub-frigid zone grow in the climatic zone of coniferous forests in the sub-frigid zone, such as Eurasia and northern North America, from 50 north latitude to about 55 or 65 north latitude.

A city with pleasant climate:

Yakutsk, Jansk, Vilho, Vomilienburg.