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Great Canyon of Yarlung Zangbo Nature Reserve
 
 
The Yarlung Zangbo Canyon slept soundly for millions of years. No one knows it is a global most.

     
        Another bend of the Yarlung Zanbbo Canyon - looking
             at the Great Canyon from Zhuba


In the early of 1994, Chinese scientists found by accident that the Yarlung Zangbo Canyon, which cuts through the Himalayas, has an average depth of 5000 meters with the maximum depth of 5382 meters; from Pai to Baxika, the total length of the canyon is 496.3 kilometers. A series of figures made the scientists go wild with joy. The figures meant a new most of the world was born. Yarlung Zangbo Canyon is the new world champion!

      
           Interlinked bends - a glance at the Canyon

Analyzing from the internal agent condition that forms the great canyon, we can just say that the Yarlung Zangbo Canyon has no rivals. Yarlung Zangbo River locates in the Qinghai-Tibet Plateau, which is still in strong periodical rising; the Qinghai-Tibet Plateau is the youngest plateau that rises the most rapidly on earth. It has an average elevation of over 4500 meters. With the strong erosion and cutting of tremendous amount of water along the weakest part of the shell, it's sure that the deepest canyon wll be formed in this part of the world. The average elevation of the Colorado plateau in west America is no more than 3000 meters; Peru Plateau is even lower; moreover, they are only cut and eroded by rivers in dryer environments, the canyons thus formed there are sure to be much smaller than the Yarlung Zangbo Canyon, no matter in depth or in their continuous length.

     
         Distant view of Mount Jialabailei and Namjagbarwa
            at the entrance to the Great Canyon


The geological and atmospheric research show that the mental plume in the Yarlung Zangbo Bend rises strongly and forms the strongest "thermal eddy" on earth. The average rising for this part within the recent 15 years is 30 mm per year; and it is one of the areas that rise the most quickly on earth. Such internal agent conditions can be found with neither Colorado Canyon of America nor the Keerka Canyon of Peru. The effect of the underground lava in Colorado expresses by overflowing to the ground surface, which forms the basalt intercalation in Colorado. The annual rising in that place is no more than 6-15 mm; the effect of underground lava expresses in the form of volcano eruption in Keerka Canyon of Peru and it forms volcanic rock mountains in one side of the Keerka Canyon. In general, the huge press effect and thermal effect of the underground mantal plume with rotational shear movement are the strongest with the Yarlung Zangbo Cangyon. They act on each other with the outer crust of the earth and it's sure that they will form the largest and the most magnificent canyon in the world.

          
       Landscape in the downstream of the Garlung Zangbo River

This State-grade nature reserve consists of Nyilha Zangbo River Valley Nature Reserve, Deyang Gully Reserve Spot for Takins and the Burjun Nature Reserve for Tropical Rain Forest, with the aim of protecting the complete comprehensive natural ecological system. The water surface at the lower reaches of the Yarlung Zangbo River in this reserve is only several hundred meters above sea level, but other places within 40 kilometers from it can form a drop of several thousand meters with it. As a result, in a relatively short distance, natural scenery and species range from tropical to frigid, forming a great treasure trove of genes of various species. It contains almost all vegetation types from the frigid zone in the North Pole to the tropical zone in Hainan, the southernmost province of China. No people live on the reserve, although the locals hunt, but many cliffs and rapids in the reserve have formed natural obstacles against human attempts to enter. Besides, there are special administrative offices on the edge of the reserve, so the primitive conditions are intact.

          
     The Great Yarlung Zangbo Canyon under the blue sky and white clouds

The Nyela Zangbo River Valley is the major part of the Great Yalung Zangbo Canyon Nature Reserve, containing many species, special geological structures and traces of ancient glaciers. It has intact natural vegetation in primitive conditions. The complicated natural conditions have resulted in rich flora resources, including many rare species. In recent years, new species have been continuously found. The higher plants already found number 3,000, accounting for over half of all the species of plants all over Tibet. There are 21 rare plants under special State protection, and over 40 plants up to the "model standard" are named after Medog. The dense forest in the reserve is a paradise for wild animals, which range from tropical to frigid species. Some of them are rare species peculiar to this area.

        
              The Great Yalung Zangbo River

According to a rough estimate, over 40 species are rare animals under State protection. The reserve is called "natural zoo." The Burjun Lake Nature Reserve is located 30 kilometers south of the Nyelha Zangbo River Valley Nature Reserve, covering an area of over 100 hectares. The surrounding mountains are not steep. The lake is like a brilliant gem inlaid in the tropical evergreen latifoliate forest. The jade green lake water and the mountains add radiance and beauty to each other, forming a charming scene. Because of the lake, this place is humid all year, with tropical and subtropical plants growing luxuriantly on mountains slopes, and wild animals moving about. Throughout the year, monkeys' cries and birds' chirping are heard. There is a great variety of birds, among which is the toucan with a brown neck, a tropical bird under first-grade State protection. This is also the place where, it is said, the Abominable Snowman used to haunt.

          
       Distant view of Mount Jialabailei from dense forests

The Deyang Gully Nature Reserve for takins is located 50 kilometers south of the Nyelha Zangbo River Valley Nature Reserve, with the Nugong River running through it from north to southeast. Its eastern and western bounds are the outer sides of the planking mountain ridges. In winter, most of the places higher than 4,000 meters above sea level are covered with thick snow. On the eastern and western sides, ice and snow sliding down from the mountains form "ice walls." The only pass, at the northeast corner by the Yarlung Zangbo River, forms a natural hopper. This reserve is a haven for takins.
 
 
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