魔兽世界工会友善:what is a rainforest

A rainforest(雨林） is a forested biome with high annual rainfall due to the Intertropical convergence zone. Some cite a minimum normal annual rainfall of 2500 mm (about 100 inches or 250 centimetres), with normal rainfall at least 60 mm during each of the twelve months of the year. Others set the minimum annual rainfall barrier as low as 1700 mm (about 67 inches). The soil can be poor because high rainfall tends to leach out soluble nutrients. This type of biome is found in both temperate and tropical climates. As well as prodigious rainfall, many rainforests are characterised by a high number of resident species and tremendous biodiversity.
Rain forests are home to two-thirds of all the living

Tropical rainforest That the tropical heat and humidity areas tall evergreen forest vegetation communities. Plant clearly divided into several good upper for trees, as high as 60 metres, variety, tree trunks upright; By the middle of many medium and small trees composition; Lower, the essence of rattan plants everywhere, and some rough-20~30 cm, up to 300 metres long. Tropical rain forests are the largest remaining forest biological types of forest communities a is the repository of plant resources, there are many luxurious timber, medicinal herbs, fruit trees, rubber, oil and economic plants. Tropical rain forests, mainly in the lowest precipitation in more than 200 mm, high air humidity, the temperature in the area between 25~30 degrees. If the Amazon basin in South America, Africa and Asia, the Congo Basin of Sri Lanka, Indonesia, the Philippines, Malaysia, India, and other areas. While the largest area of the Amazon basin tropical rain forest, the types of plants to the tropical rain forests of Asia for most. China's Yunnan, Taiwan and Guangdong, Hainan also has limited distribution. Terrestrial biomes -- the tropical rainforest (2) Tropical rain forests are narrow and broad understanding of the different and narrow distribution in the tropical rain forests that warm humid climate all year round, lush forests of the equatorial low ground, these forests of the tropical rain forests are very significant characteristics. Broadly include a tropical mountain climate, although relatively cool but humid tropical mountain emergence of the "mountain rain forest" and grow with tropical monsoon climate humid climate zone but uneven distribution of rainfall and a dry season marked "seasonal tropical rain forest." But some in the subtropical also have more scope tropical forest characteristics sometimes been credited "tropical rain forest" area, or simply known as "subtropical rainforests," and the "mountain rainforest" similar. Our tropical rain forests are more broad areas. Broad and narrow tropical rainforest is the most prosperous of the tropical rain forest ecosystems same, but also have a certain tropical characteristics, but their tropical rainforest than the typical characteristics of a tropical rainforest to some discounts. Mountain rainforest from temperature conditions that are actually tropical forest types, as in the distribution of high altitude Department, the temperature is different from down the mountain to subtropical and temperate and tropical regions. Mountain rainforest from the forest and on the overall appearance is different from the typical tropical rain forest, its crown cover more formation, the lack of prominent crown cover of tall trees; Forest plants to grow within the moss plants rather high density of plants less; Using a tree ferns and 5,800 more; With the increased altitude, the large wood rattan, flower stems boards roots typical features such as tropical rain forests are decreasing, forests are gradually Bianai to Peak, even dwarfing "Peak coppice." Mountain rainforest has its own definition, sometimes involving low mountain tropical rainforest features more prominent type, and will feature a variety of tropical rainforest Zhongshan above the forest division has little evergreen broad-leaf forest in the ranks. Zhongshan District in the mountainous cloud forests of the distribution belt, the perennial wind around the cloud, and "Yunlin" said. There are many rare species of mountain forests, mountain-eastern mountain gorillas, all of the Great Monkey most scarce. China's Hainan and Yunnan have many mountain rainforest is Hainan black bag, precious fauna. Tropical season is a tropical rain forest and tropical rainforest quarter of transition between types of rainforest. Tropical rain forests and semi-evergreen tropical season some similar quarter rainforest, the upper dry season deciduous trees have certain phenomenon leaves the leaves of the tropical rain forest area than typical small, the various characteristics of tropical rain forests is not as narrow a typical tropical rain forest. However tropical rainforest Luoxieshu season and the proportion of small Ye smaller than tropical rainforests quarter, the return period is very short Layeshu often-leaf instead of the real spirit, while on leaves grown under new leaf. Tropical rain forest not only season as a whole is aged evergreen forest, tropical rain forest characteristics than the tropical rain forest quarter to be developed. China's Yunnan Xishuangbanna, especially tropical rain forests are many such tropical rainforest season, and this is our most abundant biological resources biomes.

雨林是什么？

什么是热带雨林？

what is a rainforest
=什么是热带雨林?