地理学評論
Online ISSN : 2185-1719
Print ISSN : 0016-7444
ISSN-L : 0016-7444
26 巻, 7 号
選択された号の論文の4件中1~4を表示しています
  • 小林 國夫
    1953 年 26 巻 7 号 p. 291-307
    発行日: 1953/07/01
    公開日: 2008/12/24
    ジャーナル フリー
    本稿では(1)フォッサ・マグナ西部第三紀層地域には少くとも1000km2に及ぶ小起伏面が分布していたこと. (2)現在約1000mをこえる高さの山はすべて小起伏面形成期のHärtlingであること. (3)大峰,四阿屋山,聖山及び美ガ原は從來第四紀の火山と稱せられてきたが何れも實にあらざること. (4)“山砂利”は上述の小起伏面を掩うものであること. (5)上記の小起伏面は終末準平原的にではなく原初準平原的に形成されたこと. (6)山地の今日の高度分布の決定は單に侵蝕によるもので,斷層や傾斜運動による様な證據は顯著ではないこと,等を小テーマとして説明する.結論的には筆者は本域の地形成因に關する從來の諸説を根本的に改めなければならぬと信ずるに到つた.
  • 三重縣の場合
    河地 貫一
    1953 年 26 巻 7 号 p. 308-317
    発行日: 1953/07/01
    公開日: 2008/12/24
    ジャーナル フリー
    1) Because social phenomena are the synthetic expressions of man and his environment, they may be said to be expressions of regional characteristics. In. classifying regions, we should try to find out what sort of social pheno-mena are essential to the given area.
    2) In dividing Mie Prefecture into agricultural regions, I attempted to find. the essential features of correlations existing among different agricultural phenomena. I believe these to be the percentage of arable land to the total aria, that of dry fields to the arable land., and that of paddy fields to the arable land. These features indicate most directry the relationships between agriculture and environment. It can be, seen in. each administrative unit that the percentage of dry fields and that of paddy fields are correlated respectively with the area of dry fields and that of paddy fields cultivated by the average farm household in each administrative unit.
    3) Population density, an indicator showing man's degree of adaptation to his given environment, is closely related to the percentage of arable land to the total. area; however where population density is over 700 persons per km2, correlation appears to become lost. Therefore I have regarded areas, in w -hich density of population is less than 700 per Km2 as agriculturall regions.
    4) The total. area, both dry and paddy field, cultivated by a single farmst household is closely related to the percentage of pure farmers, merchandised rice, tax-income as well as with that of farm households cultivating more than 10 tan, less than 3 tar, and the amount of rice crop per tam.
    Therefore, the area cultivated. by an. average farm household, taking the distinction between dry and paddy fields into consideration, is the most essential criterion in dividing an area into agricultural regions. (Cf. Fig. 2)
    5) The “urban” area is characterised by a population density of over 700 and by the cultivation of vegetables and fruits.
    6) Fishing regions are found along the coast of Kumano Nada and arty restricted to those administrative units in which the average f arm household cultivates less than 4 tan.
    Thus from the agricultural point of view, Mie Prefecture is divided as Fig. 5 shows; what each region includes is shown in Plate 1.
  • 千葉 徳爾
    1953 年 26 巻 7 号 p. 318-322
    発行日: 1953/07/01
    公開日: 2008/12/24
    ジャーナル フリー
    The distribution of bare lands in Middle Shinano shows very distinct features. They are found on the south slopes of hills surrounding, the basin, but rarely on their north slopes. Eanh slope is covered by vegetation different from that of the others; that is, south slopes are either covered by scattered Pinus thunbergii or occupied by almost bare land, while north slopes are covered by Pines, Quercus glanizzlifera, or other shrubs. (North slope soils are fertile, being uneroded despite their generally steeper inclination as compared to soy th slopes.)
    This landscape has been caused by low precipitation and a high percentage of sunshine during the winter season. Sinee it does not snow mnuci h and freezing is severe, weathering by frost is remarkable at adret in this area and fine Sands run off when it rains in the spring. Howvever, this is not a normal erosion but an aecelelated soil-erosion; the vegetation is of :secondary mature and seems to have been destroyed by human activities such a rootdigging and gathering of forest litter, although, as yet, the data are insufficient to prove the above statement. It may be done in the near future.
  • 1953 年 26 巻 7 号 p. 323-335_1
    発行日: 1953/07/01
    公開日: 2008/12/24
    ジャーナル フリー
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