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Great
Canyon of Yarlung Zangbo Nature Reserve |
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Sunlight
shines on the barks of birch trees
Progress
along the tree roots
There are different natural zones in
the Great Canyon region. Beside the
snowy desert, the grassland and bushes
above the snow line of el. 4200 meters,
and all the places of the Great Canyon
are covered with forests. Natural forests
are widely distributed and the forest
resources are extremely abundant in
this region. Its forest resource reserve
is only less than Northeast and Southwest
of China and it ranks number 3 in China.
A
big harvest - an autumn scene in the
Great Canyon
Among the high mountain needle-leaved
forests, helmlocks and spruce have widespread
distributions. Fur trees are the major
timber trees. Among the broad-leaved
evergreen forests in-between el. 1100
and 2400 in Medog on the southern slope,
there are large amount of timber trees
of the sub-tropical zone; such as Fagaceae
plants: Cyclobolanopsis xizangensis,
Quercus lodicosa, Quercus tungmaiensis;
Lauraceae plantes; Phoebe motuonan,
Phoebe nanmu, Cinnamomum subavenium,
Machilus rufipes. The woods of Fagaceae
plants are hard and superb materials
for manufacturing furniture, and the
woods of Lauraceae plants are famous
and precious for their fragrance. There
are many kinds of precious tropical
timber trees in the valley below 1100m,
such as Terminalia myriocarpa, Altingia
excelsa, Lagerstroemia minuticarpa,
Toona ciliata, Homalium zeylanicum,
Celtis terandra, Celtis cinnamomea etc.
The forest stand of lagerstroemia minuticarpa
is as much as 800 cubic meters/hectare.
The Amentotaxus argotaenia here is an
especially rare timber tree in our country.
Because the wood is not only easy for
processing, it is also quite fine,smooth,
everlasting and fragrant, it is liked
by local people. |
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