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0158 The Pulse of Asia : vol.1
アジアの鼓動 : vol.1
The Pulse of Asia : vol.1 / 158 ページ(カラー画像)

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doi: 10.20676/00000233
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uplands, none of which are as yet extensively dissected by
the rejuvenated rivers, whose grade and consequent power
of dissection were greatly increased by the change of level.
Thus a large part of the western Tian Shan region con-
sists of smoothly floored basins and gently rolling uplands
lying at a height of from 10,000 to 12,000 feet above the
sea, and therefore subjected to relatively heavy precipita-
tion in summer. The conditions of climate among these
"pamirs," as they are generically called according to
Younghusband, allow an abundant growth of thick, turfy
grass full of flowers. Trees, however, are wholly absent on
the main plateau, and are rare even on the lower slopes.
Schimper explains this as due to the fact that the wet season
in midsummer is not long enough to favor the growth of
trees, which require a growing season much longer than
that of grass. Nevertheless, in the valleys, at an elevation
of from six to nine thousand feet, there are some trees and
a profusion of delicate flowers, rich grass, and shrubs.
It is not my purpose to discuss the vegetation. It may be
worth while, however, to print here a list of the plants, so
far as I happened to record them, which grow wild among
the lower slopes of the mountains northeast of the Lop
basin, but are cultivated in Europe and America. They
comprise the apple, apricot, plum, and olive (not the com-
mercial species); the asparagus, onion, and rhubarb; the
candytuft, chrysanthemum, crocus, heliotrope, peony,
phlox, and tulip; the large blue and purple varieties of
columbine; the pansy and lady's delight, both purple and
yellow; and the red, yellow, and white varieties of the poppy
and rose. That there are many more than these nineteen