巻号一覧
24 巻, 12 号
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齋藤 晃吉1951 年 24 巻 12 号 p. 417-426
発行日: 1951/12/01
公開日: 2008/12/24
ジャーナル フリー1. Kahokugata is the largest lagoon in Hokuriku Region along Japan Lea. The greater part of its lower coastal plain is an important early-rice producing district in the single crop belt of rice in Ishikawa-ken. As the lagoon has drainage area fifteen times as big as its susface and has 2, 500mm. anual precipitation in average, it frequently causes severe overflows.
2. It is possible to devide this coastal plain into three parts according to the lagoon overflows and the relief of land. The first is a part below the ordinary water level, the second is a part overflowed irregularly, and the. last is a part free from overflows. From the view of the situation of settle-ments, the land use and distribution of flume and drainage types, it isobvious that above division is reasonable.
3. Therefore, every phase of agricultural livings in the Kahoku-lagoon district is not fully explained without considerations of its special. natural conditions, that is, the relief of land and the overflows from the lagoon.抄録全体を表示PDF形式でダウンロード (1201K) -
田中 豐治1951 年 24 巻 12 号 p. 427-435
発行日: 1951/12/01
公開日: 2008/12/24
ジャーナル フリーIn the Mountain region of San-in District, arableland, woodlandand houselots are generally considerd as a unit of means of Production, which is called “Kabu”. Agricultural method in this region is that of mono-culture specialized in rice.
Woodlands are essential in their economy as the source of green manure applied to the rice fields. This method of manuring is called “Karishiki” in this region.
The cool climate of San-in District is not favorable to the application of artificial fertilizers considering their effects on the Crops.
In this district, therefore, arableland and mowing.grass fields should not be considered separately. Since the feudal land owner system, most part of forests here, have been poses sed by landlords.
Small tenant land among the hills have lately been distributed to the farmers by agricultural land reform.
Owing to the insufficiency of land reform, however, that to, say the reform without redistribution of forests, farmers in mountain villages are now confronted with difficulties, being unable to secure sufficient fertilizer for their agricultural management.抄録全体を表示PDF形式でダウンロード (1088K) -
淺海 重夫1951 年 24 巻 12 号 p. 436-446
発行日: 1951/12/01
公開日: 2008/12/24
ジャーナル フリーThe writer has tried to assort land surface in Japan, since he has engaged in a work concerning land divisions to decide survey units of soil and to follow the correlation between land features and soils. Two tentative plans are submitted in this paper; the first is emzzphasizing to distinguish geomo-rphological faces features by actual border lines among them. In the illustration (Fig. 1), are assorted such as delta plain, fluvial-allvial plain, river terrace, elevated coastal plain, fan, colluvial fan, dissected fan and other uplands, and mountain land.
The second plan was carried out in Boso Peninsula, conforming to practically appropriated standard containing some gemorphometric methods to discriminate the differentiations of land features (Fig. 2). Boso Peninsula consists of four Regions, 1). low land (one coastal plain and several delta Plains), 2). river terraces and marine bench, 3). uplnad, 4). mountain land; the upland region is divided into three sub-regions by the degree of the dissection, and the mountain region divided into six sub-region by the altitude and the degree of the relief energy.抄録全体を表示PDF形式でダウンロード (1472K) -
1951 年 24 巻 12 号 p. 447-448,1
発行日: 1951/12/01
公開日: 2008/12/24
ジャーナル フリーPDF形式でダウンロード (800K)
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