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An evergreen forest is a forest consisting entirely or mainly of evergreen trees that retain green foliage all year round. Such forests reign in the equatorial region, between the tropics primarily as broadleaf evergreens, and in temperate and boreal latitudes primarily as coniferous evergreens. ''Moist forest'', ''montane forest'',''mossy forests'', ''laurel forest'', ''cloud forest'', ''fog forest'', are generally tropical or subtropical or mild temperate evergreen forest, found in areas with high humidity and relatively stable and mild temperatures, characterized by a persistent, frequent or seasonal low-level cloud cover, usually at the canopy level. Cloud forests often exhibit an abundance of mosses covering the ground and vegetation. ==Tropical evergreen forests== Tropical evergreen forests are usually found in areas receiving more than 200 cm of rainfall and having a temperature of 15 °C to 30 °C and have annual humidity exceeding 77%. They occupy about seven per cent of the Earth's land surface and harbour more than half of the planet's terrestrial plants and animals. Tropical evergreen forests are dense, multi-layered, and harbour many types of plants and animals. The trees are evergreen as there is no period of drought or frost. The canopy tree species are mostly tall hardwoods with broad leaves that release large quantities of water through transpiration, in a cycle that is important in raising as much mineral nutrient material as possible from the soil. In India, evergreen forests are found on the eastern and western slopes of the Western Ghats in such states as Tamil Nadu, Karnataka, Kerala and Maharashtra. And also found in Assam, Arunachal Pradesh, Meghalaya, Nagaland, Tripura, West Bengal and Andaman and Nicobar Islands. They are also found in the hills of Jaintia and Khasi. Some of the trees found in Indian tropical forests are rosewood, mahogany and ebony. Bamboo and reeds are also common. Because of dense foliage competing for light, little direct sunlight reaches the understory. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「evergreen forest」の詳細全文を読む スポンサード リンク
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