What are the characteristics of the subarctic coniferous forest climate?

Introduction

The subarctic coniferous forest climate is also called the subpolar continental climate. It is mainly distributed in Eurasia and northern North America, with latitudes ranging from approximately 50°N to 55°N. ° or around 65°. Since there is not much water vapor in the air and evaporation is weak, it still has a humid climate. Precipitation is concentrated in summer because the temperature is higher in summer, there is more water vapor in the air, and there are cyclonic rains and convective rains. ; The temperature in winter is low, the water vapor content is small, and it is controlled by the sinking continental anticyclone, so there is little precipitation in winter. The subarctic coniferous forest climate is rich in forest resources and often has developed forestry.

Characteristics

The winter is long and cold, with the average monthly temperature below 0°C; the summer is short and warm, with the average monthly temperature above 10°C. The annual precipitation is 300 to 600 mm. Due to weak evaporation, the relative humidity is high. The temperature varies from year to year. Large. This is because this area is the source of polar continental air masses and has a high latitude. It has long nights in winter, a small altitude angle of the sun at noon, and is covered with snow. The ground radiation cools violently and is not regulated by ocean air masses. It is east-west. It extends into a broad belt. Due to its high latitude, the winter is long and cold; the warm season is short, and the annual temperature range is particularly large. Precipitation is sparse and concentrated in summer, but the temperature is low, evaporation is weak, and the relative humidity is high. Natural The vegetation is coniferous forest.

Distribution of animals and plants

The animals and plants in the subarctic coniferous forest are mainly cold-resistant coniferous trees such as larch and spruce. The leaves are slender and needle-shaped. It has a very thick cuticle and is an important timber tree species in the world. Other tree species are relatively single and not as diverse as the plant species in tropical rainforests. Most animals have thick fur, such as bears, foxes, squirrels, etc. Typical animals include reindeer. , sable, etc.

Climate distribution

North America: most areas from Alaska through Canada to Labrador and Newfoundland.

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

Main weather

Due to the influence of polar oceanic air masses and polar continental air masses, and produced by polar continental air masses The source area is often invaded by arctic air masses in winter, and is sometimes penetrated by tropical continental air masses in warm seasons.

Natural zone

Subarctic coniferous forest. Subarctic coniferous forest grows in Subarctic coniferous forest climate zone, such as Eurasia and northern North America, areas north of 50° north latitude to about 55° or 65°.

Cities with significant climate:

Yakutsk, Verkhoyansk, Vermilion Castle