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Wysłany: Czw 11:41, 27 Sty 2011
Temat postu: Yunnan Natural big stage _4366
Yunnan: Natural big stage
Material treasure Spice Museum , accounting for 56% of the total number of species around. wild about 2500-3000 species of ornamental plants, equivalent to resource-rich flowers in Yunnan Province near Tibet, Guizhou, Guangxi, the total number of species in more than 50% greater than the northwest, the total number of species in North China provinces. by the great elevation terrain, the vertical variation in topography and climate and biological development of the vertical band spectrum, with superimposed on the vertical level above the area, which appears each winter with a warm natural vegetation, the Yunnan formation as a complex and extremely rich biological resources in the provinces. the geographical distribution of vegetation from low to high were: ① tropical vegetation: 35 points 2007.10 forests and human fabric in the south valley area of low elevation and low heat, heat under the water different conditions, was divided into the tropical rain forest, monsoon forest, tropical bamboo forest, riparian vegetation and the dry heat type and other types of secondary woodland shrub. ② subtropical vegetation: mainly distributed in Yunnan, the north elevation of the plateau in the mountains, including subtropical evergreen broad-leaved forest, warm coniferous forest and shrub. montane rain forest in the transition zone there, conifer. ③ temperate and alpine vegetation: mainly in the north central part of the high mountains and high altitude the top of the high Zhongshan District, including: sub-alpine temperate coniferous forest, secondary sub-alpine scrub and subalpine meadow, alpine shrub, alpine meadow,
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, alpine cold desert scree vegetation. defoliation in some areas have also appeared broad-leaved forest, evergreen broad-leaved sclerophyll forest, dry and warm dry valley vegetation types and aquatic vegetation. With the continuous economic development and the increasing human activities, various types of vegetation in the province except the original vegetation in western Yunnan , southern Yunnan mountain area and the edge of the upper body and some reservation, in the eastern lowlands and river valleys have been rare in native vegetation, secondary forest, shrub grassland, and pine, a larger proportion of Fir. In some steep areas and high altitude mountain top is also retain a certain native vegetation. In general, compared with other regions in Yunnan Province, the vegetation type and more primitive area of great ecological reserves. Plants special variety. rich in biological resources is its prominent feature. Yunnan wild animals or animal species in particular, more provinces, known as wild animals to survive l_-n port., I-7% r sleep and preservation of ecological environment. With economic development,
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, although environmental things are hi transitional population characteristics of some animals or even disappear, but generally speaking, by remaining uJ - ■-I-1. 【second type and quantity point of view, in the country is still ranked among the other provinces can not match. According to statistics, Yunnan, about 300 species of terrestrial vertebrates. accounting 50% of the total, about 850 kinds of birds, accounting for 68% of 1,257 kinds of amphibians, 112 species, accounting for 40.9% of 274 species of reptiles, 152 species, accounting for 387 kinds of 39.3%, 455 fish species, accounting for 43.6% in 1044 kinds, as a greater proportion of insects are. In addition to many other species of animals, from animal zoning point of view, there are obvious features. It has both North and South, East and West are the transitional characteristics,
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, with both Palaearctic fauna, but also the Oriental Region and the southwest region of South China fauna. southern Yunnan, southwestern Yunnan group composed of mainly tropical and subtropical elements, which There are some animals in the Indian invasion of the peninsula, such as the Asian elephant, Indochinese tiger, white arm bison, white-cheeked gibbon, dolphin tail monkey, ape bear, otter monkey, large bamboo rat, mouse and so good pull, hornbills, peacocks and other birds class are more similar. Yunnan North, Northwest Yunnan Plateau Zeyi Palaearctic species along the north appears dominant,
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, such as antelope, Yunnan golden monkey, red goral, large marmot, Tibetan macaque, bear monkey, black musk deer, mice rabbit, hazel grouse, three-toed woodpeckers, Turnery birds and so on. by tilting and mountain terrain and other factors JII column,
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, Palaearctic species along the mountains north direction, moving from north to south along the ridge; and tropical species along the river valley continuously stretching from south to north. Similarly, a number of seasons when the animals. in height on a huge mountain, from top to bottom or from bottom to move. that animals flora staggered, overlapping, intersecting the distribution of some species to form a complex distribution pattern. ■ 2007.10 forests and human 37
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