GEOGRAPHICAL SCIENCES

[title in Japanese]

Article type: Cover
1995 Volume 50 Issue 2 Pages Cover1-
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_Cover1

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[title in Japanese]

Article type: Cover
1995 Volume 50 Issue 2 Pages Cover2-
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_Cover2

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[title in Japanese]

Article type: Appendix
1995 Volume 50 Issue 2 Pages App1-
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_App1

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Rockglaciers of the Aiguille-Grive Mountains, Northern French Alps

Tamio CHINEN

Article type: Article
1995 Volume 50 Issue 2 Pages 75-90
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_75

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Block fields are widespread in the altitudinal zone higher than ca. 1800 m a.s.l. of the Aigulle-Grive Mountains culminating 2732 m a.s.l., south of Bourg-St.-Maurice, France. Morphology, sedimentological characteristics and origin of the block fields are discussed on the basis of air-photo interpretation and field examination. The results are as follows : 18 block fields are observed in the study area. The morphological margins of the block fields are sharply defined from the surrounding slope deposits. Of the 18 block fields, 16 block fields are suggested to be rockglaciers by the following facts. The block fields, mainly composed of allochthonous debris, demonstrate tongue-shaped or lobate-shaped plan form, and are characterised by steep surface (25〜40°in slope) and thick debris (10〜25 m in depth) of the frontal part, superficial micro-relief of furrows and ridges, and granulometric inverse grading of the constituent coarse materials. The following implication is drawn from an examination of the characteristics such as coverage of lichen and vegetation patches, results of geoelectical sounding, development of talus aprons along the foot of some frontal slopes, meteorological conditions of the study area, and a comparison with the pre-existing studies. Although no confirmative evidence of the present-day activity of the suggested rockglaciers is found, most of the rockglaciers appear to be "fossil" type and a few rockglaciers to be "inactive" type in the sense of Barsch (1988,1992).

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Effects of Roughness Parameter due to Buildings and Thermal Property of Construction Materials on Temperature Distribution in a Housing Complex

Masaki TEJIMA

Article type: Article
1995 Volume 50 Issue 2 Pages 91-102
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_91

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Among the formative factors of the urban climate, roughness due to buildings and the thermal property of construction materials have a great influence on the appearance of the urban heat island. In the present paper, the influence of these factors on the heat island is discussed based on the observation data in and around the Homi housing complex in Toyota City, central part of Japan. Special attentions have been paid on the roughness parameter defined by Lettau (1969) and the thermal property of the construction materials as the surface condition in the housing complex to explain the distribution of air temperature. Results of this study can be summarized as follows : Centers of high temperature area in the Homi housing complex are likely to appear in the area with large roughness parameter. Though the heat island intensity enlarges due to the increase in the roughness parameter, the heat island intensity indicates a nearly constant value in the range of particulaly high roughness parameter. Moreover, 1/cρ√<κ> , which is a combined parameter of the specific heat, the density and the thermal conductivity, shows negative correlation with the heat island intensity. These relationships are more marked during the nighttime and the early morning, when the radiation cooling is active, than the daytime. A large quantity of absorbed heat into buildings during the daytime should contribute to the maintenance of high temperature condition during the nighttime.

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Regional Characteristics of the Agricultural Cooperatives in Hiroshima Prefecture

Shin'ichiro SUGIURA

Article type: Article
1995 Volume 50 Issue 2 Pages 103-122
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_103

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This paper attempts to make clear the regional characteristics of the agricultural cooperatives (Nokyo) in Hiroshima prefecture. The results obtained are summarized as follows : As a result of the principal component analysis on the characteristics of the agricultural cooperative in 1992,eight components (cumulative percentage of the total variance ; 82.3%) were extracted. The major components could be termed as the activity of agricultural production (eigenvalue ; 9.70,percentage of the total variance explained ; 28.5%), the level of rurality (6.59,l9.4%), non-financial operations (3.36,9.9%) and-so on. By the first four components, all of the agricultural cooperatives in Hiroshima prefecture were classified into 4 types by the cluster analysis (Ward's method); A, B, C and D type. The distribution patterns of the four types are clearly separated one another as clusters ; A type cooperatives (16 cooperatives) are in the mountainous regions, B type ones (6) are in islands regions, C type (5) are in suburban regions and D type (27) are in urban regions. An agricultural cooperative has various problems under the regional conditions. Shobara Agricultural Cooperative (type A) has a problem of the shortage of hands in agriculture because of social aging. Setodacho Agricultural Cooperative (type B) is a good example of the high level of the nonfinancial operations especially in orange producing. In Higashi-Hiroshima-Shiwa Agricultural Cooperative (type C) the linkage between cooperative and its members has become faint because of the high level of the farm family involved in another business. Saekichuo Agricultural Cooperative (type D) is dependent on financial operations. And operation of the real estate is a peculiar to the type D.

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Preliminary Study on the Relationship between Vessel Growth of Thorny Shrubs and Water Balance in the Semi-arid Region, Northeastern Brazil

AKIO TSUCHIYA

Article type: Article
1995 Volume 50 Issue 2 Pages 123-131
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_123

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[title in Japanese]

[in Japanese]

Article type: Article
1995 Volume 50 Issue 2 Pages 132-134
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_132

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[title in Japanese]

[in Japanese]

Article type: Article
1995 Volume 50 Issue 2 Pages 134-137
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_134

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[title in Japanese]

[in Japanese]

Article type: Article
1995 Volume 50 Issue 2 Pages 137-139
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_137

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[title in Japanese]

[in Japanese]

Article type: Article
1995 Volume 50 Issue 2 Pages 139-142
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_139

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[title in Japanese]

[in Japanese]

Article type: Article
1995 Volume 50 Issue 2 Pages 142-144
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_142

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[title in Japanese]

Article type: Appendix
1995 Volume 50 Issue 2 Pages 145-153
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_145

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[title in Japanese]

[in Japanese]

Article type: Article
1995 Volume 50 Issue 2 Pages 154-155
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_154

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[title in Japanese]

[in Japanese]

Article type: Article
1995 Volume 50 Issue 2 Pages 155-156
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_155

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[title in Japanese]

Article type: Appendix
1995 Volume 50 Issue 2 Pages 156-
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_156

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[title in Japanese]

Article type: Appendix
1995 Volume 50 Issue 2 Pages App2-
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_App2

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[title in Japanese]

Article type: Cover
1995 Volume 50 Issue 2 Pages Cover3-
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_Cover3

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[title in Japanese]

Article type: Cover
1995 Volume 50 Issue 2 Pages Cover4-
Published: 1995
Released on J-STAGE: April 20, 2017

DOIhttps://doi.org/10.20630/chirikagaku.50.2_Cover4

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