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Types & Characteristics of Forests
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Coniferous Forest (Boreal Forest)
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- Cold regions with high rainfall, strong seasonal climates with long winters and short summers evergreen plant species such as spruce, fir and pine trees, etc. and by animals such as the lynx, wolf, bear, red fox, porcupine, squirrel, and amphibians like Hyla, Rana, etc.
- Boreal forest soils are characterized by thin podzols and are rather poor. Both because the weathering of rocks proceeds slowly in cold environments and because the litter is derived from conifer needles (leaves decompose very slowly and are not rich in nutrients).
- These soils are acidic and are mineral deficient. This is due to the movement of a large amount of water through the soil, without a significant counter-upward movement of evaporation, essential soluble nutrients like calcium, nitrogen, and potassium are sometimes leached beyond the reach of roots.
- This process leaves no alkaline-oriented cations to encounter the organic acids of the accumulating litter. The productivity and community stability of a boreal forest are lower than those of any other forest ecosystem.
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Temperate Deciduous Forest
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- The temperate forests are characterized by a moderate climate and broad-leaved deciduous trees, which shed their leaves in fall, are bare over winter, and grow new foliage in the spring.
- The precipitation is fairly uniform throughout. Soils of temperate forests are podzolic and fairly deep.
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Temperate Evergreen Forest
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- Parts of the world that have the Mediterranean type of Climate are characterized by warm, dry summers and cool, moist winters.
- Low broad-leaved evergreen trees. Fire is an important hazardous factor in this ecosystem and the adaptation of the plants enables them to regenerate quickly after being burnt.
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Temperate Rain Forests
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- Seasonality with regard to temperature and rainfall.
- Rainfall is high, and fog may be very heavy. It is an important source of water rather than rainfall itself.
- The biotic diversity of temperate rainforests is high as compared to other temperate forests. The diversity of plants and animals is much lower than compared to the tropical rainforest.
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Tropical Rain Forests
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- Near the equator.
- Among the most diverse and rich communities on the earth. Both temperature and humidity remain high and more or less uniform. The annual rainfall exceeds 200 cm and is generally distributed throughout the year.
- The flora is highly diversified. The extremely dense vegetation of the tropical rain forests remains vertically stratified with tall trees often covered with vines, creepers, lianas, epiphytic orchids, and bromeliads.
- The lowest layer is an understory of trees, shrubs, herbs, like ferns and palms. The soil of tropical rainforests are red latosols, and they are very thick.
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Tropical Seasonal Forests
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- Also known as monsoon forest occur in regions where total annual rainfall is very high but segregated into pronounced wet and dry periods.
- This kind of forest is found in South East Asia, central and south America, northern Australia, western Africa and tropical islands of the Pacific as well as in India.
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Subtropical Rain Forests
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- Broad-leaved evergreen subtropical rain forests are found in regions of fairly high rainfall but less temperature differences between winter and summer.
- Epiphytes are common here.
- Animal life of the subtropical forest is very similar to that of tropical rainforests.
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