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  • 1946 Volume 13 Issue 1
    Published: 15 January 1946
      

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  • A.Lu.
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    The classification of the world climates proposed by W. Koeppen is undoubtedly simple, definite arid systematic. But as it is intended for the world at large, the cliriiatic types so deduced are inevitably too sket-chy and possess too much differences therein. One may glance over the appending chart 1, newly preparLd by the author and find out immediately tbat the Koeppen's climatic types, especially BS, Cwa, Cfa and Dw, cove-ring too vast an area, can hardly b0 recognized as climatic urLities. Either rain.fali or temperature varies greatly within these areas. Consequently, the land utilization in their various parts is far from unifoxm. It is th-erefore of neccesity to make some rivision when we apply the Koeppen's schema for classifying the Chinese climates.
  • Yang Huai-jen
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    The Mirikian.g valley is a region. of great geographical interest not only for the river itself being the source of wealth of the Chengtu plain, but also for rich and varied landscape found in the valley。 In summer, 1.995, the region ryas visited by the author who, started from Cherigtu, went up along the river via Kwan-hsien, to Win-chuan; from Weichow an excursion was made to the’ famous Li-fan region. The return journey was via Mou-hsien, across Chia-ping range to Menchu and Chengtu一(See Fig.l) Broadly speaking, the upper Minkian.g valley is a region of intense folding with strongly metamorphosed rocks as gneiss, shist, phylite and slate and some Igneous intrusions The Liarig-tzu range (25km north of Kwan-hsien) and the TUti range stand as the climatic barriers separating humid subtropical Red-Basin and semi-arid northwest Szechuan, South of the Liarig-tzu range and east of the Tu-ti range evergreen broad-leaf forest a :d bamboo bush flourish, As SE monsoon with its abundant moisture is blocked by these ranges, their northern and western slopes immediately become arid, and both soil and flora change accordingly: semi-deseit soils arid scattered sage brush and thorn shrub being the prevailing type.
  • L.P.Yang, P.C.Huang, Y.F.Shih & H.L.Mao
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    The surneyed area is situatad at the north of Chengtu in the Min-kiang Gorge between Kuanhsien and Ying-Siu-Wan in Wenchuan Hsien, Lying at thp contact zone of the Tibetan Plateau and the Szechnan Basin,it is essentially a region of sieep mountains dissected by deep valleys, Allu-vial plain is strictly limited, except narrow river terraces which form the chief centers of agriculture Sheltered by high mountains, the Minkiang Gorge receives insufficient sunshine with low temperature but high relat-ive humidity.
  • Mei-Ngo Jen, S.P.Chen, L.P.Yang, Y.F.Shih, S.C.Chiao
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    In an agricultural country like China, with 3/4 of her people tilling soil for their living, land forms the principal source of the nation's wealth. The improvement of the living standard and indeed, the recon.st-ruction of the country at large, must depend on a thorough under-stan-dig of the present conditions of land utilization so that meaures may be taken for rational use of natural resources. Unfortunately, accurate information of this sort is almost lacking. Prof. Buck's authorative work (1}, while giving us a splendid sketch of land utilization in China, is not sufficiently accurate in detail owing to the fact that his data are chiefly collected by agricultural reporters in various localities. In motEnta}nous ragion.s woich cover nearly 3/4 of the total area of China(2),the land use presents such a great diversity between valley plains and slopes that without detailed field work, report of land utilizat.on from a given loca-lty, if taken as representing the whole area, is apt to be misleading.