Social Sciences, asked by sujitsarkar32, 1 year ago

list out six factors responsible for threat to the foests in our country

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Answered by honey3648
0
Forests cover 1/3 of the earth’s surface and contain an estimated 3 trillion trees. Forests exist in dry, wet, bitterly cold, and swelteringly hot climates. These different forests all have special characteristics that allow them to thrive in their particular climate.

Broadly speaking, there are three major forest zones that are separated according to their distance from the equator. These are:

the tropical,temperate,and boreal forests (taiga).

There are also more specific types of forests within these larger regions.

World forest cover. Image credits: NASA Earth Observatory

Tropical forests

Tropical rain forests grow around the equator in South America, Africa, and Southeast Asia. They have the highest species diversity per area in the world, containing millions of different species. Even though they cover only a small part of the earth, they house at least one half of all species. The temperature is stable year-round, around 27°C (60° Fahrenheit). As you can tell from the name, it rains a lot in these forests. Most tropical forests receive at least 200 cm (80 inches) of rain in a year. Tropical forests generally have a rainy and dry season.

Tropical rain forests contain millions of species. Image credits: Thomas Schoch

south of temperate regions around coast, almost all trees evergreenTemperate broad-leaved rainforest:mild, frost-free winters, lots of rain throughout the whole year, evergreenBoreal forests

Boreal forests, also called taiga, are found between 50 and 60 degree of latitude in the sub-Arctic zone. This area contains Siberia, Scandinavia, Alaska, and Canada. Trees are coniferous and evergreen.

Global boreal forests. Image credits: Terpsichores

There are two seasons here: a short, moist, mildly-warm summer and a long cold dry winter. Temperatures range from -40 to 20°C (-40 to 68° Fahrenheit). Precipitation is usually delivered as snow because it is so cold, 40-100 cm (15-40 inches) each year. The ground is comprised of a very thin layer of nutrient-poor, acidic soil. The canopy lets very little light through so there is usually little growing in the understory. Evergreen conifers with needle leaves that can stand the cold, like pine, fir, and spruce trees, live here. Animals that live in these forests can withstand long periods of cold temperatures and usually have thick fur or other insulation — among them are moose, bears, lynx, wolf, deer, wolverines, caribou, bats, small mammals, and birds.

Aerial view of a boreal forest. Image credits: Cephas

The world’s forests are incredibly diverse and act as a carbon sink! They should be protected for their beauty and functionality.


Answered by madhusharma1978m
0

Answer:

thankyou for give answer

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