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  • 内川 淳
    新地理
    1987年 35 巻 1 号 14-28
    発行日: 1987/06/25
    公開日: 2010/04/30
    ジャーナル フリー
    (1) The Himekawa drainage area is one of the most heavy snow area in Japan with annual cover of 1.5-4.0m. This area is divided into two sub-areas, the northern and soutern parts, at Nakatsuchi, Otari Village by the depth of snow and the time of melting. In the southern part, the snow is very dry because the altitude is very high with very low temperature. The snow cover is the deepest in late February or early March and last to the middle of April. On the other hand, in the northern part, the snow is very wet because the altitude is very low with higher temperature than the south. And the snow cover is the deepest in late January or early February and it lasts to the early April, a month earlier than the south. For these reasons, the ways of removing snow on the roofs and of melting snow on the field and the kind of decorations for the New Year are different between two parts. Furthermore, the way and tools of snow treading to keep paths in the snow are different between two parts by the snow depth and topographic conditions.
    (2) Agricultural land utilization of this Himekawa area is restricted very strongly by the continuous show cover duration which reaches 120 days per year. Therefore, people in this area keep watching Yukigata (the shape of snow patches on the mountain high slopes) and common sayings which predict weather condition very valuably to make their original agricultural calendar by their traditions. Furthermore, they melt snow artificially to advance the season of seeding ricer and they contrive the way of seeding and cropping wheats which does not adapt to this area. From the viewpoints of the land utilization for forestry, the snow decrease the values of wood by bending trunks and breaking branches. On the other hand, the snow cover gives advantages for forestry such as preventing frost heaving, supplying water and preparing the roads to transport lumbers by sledding.
    People use snow as insulation for storing vegetables and as fields for sledding and skiing. Ski industries have been growing quickly since the middle of 1960's by developing and improving ski grounds, facilities, and accomodations in this area and by increasing numbers of trains on Oito-Line, Eastern Japanese Railways. As a result, industries and structures of population in this area have greatly changed.
    (3) It is recongnized that some cultures have been spread into this Kita-Azumi area from Toyama and Niigata prefectures. Technology of production such as Ecchu-Shibari (a way of bundling up harvested rice straws) and the way of making a charcoal kiln and life styles such as tree fences for wind breaking are spread from Toyama Prefecture. On the other hand, cultures for food such as Sasa-Zushi and Sasa-Dango (a kind of regional Sushi and dumpling wrapped by dwarf bamboo leaves) and Iwashino-Tsukedome (a salted sardine for preserving), a way of building houses protecting heavy snow cover and some technology of manufacturing sleds and skies are spread from Niigata Prefecture.
    Because of same natural environment of deep snow, the characterized local culture of this Kita-Azumi area was created by cultural interchange to Niigata Prefecture. Especially, in the settlements of Oami Todo and Yokokawa, Kita-Otari districts, Otari Village, which are located very close to the boundary to Niigata Prefecture, there are very strong effects of the Echigo (Niigata Prefecture) Culture.
  • —長野県白馬村と小谷村の事例—
    藤居 良夫, 内川 義行
    農業農村工学会論文集
    2019年 87 巻 1 号 II_81-II_91
    発行日: 2019年
    公開日: 2019/06/05
    ジャーナル フリー

    過疎化が進行する農村地域において, 人々が持続的に生活できる環境の確保に向けて, 「小さな拠点」の形成を図ることが注目されている.そのためには, 日常生活に不可欠な生活関連施設の立地を考えることは重要な課題であるといえる.本研究では, 長野県内の代表的な農村地域である

    白馬村
    と小谷村を対象にして, Space Syntax理論に基づく道路網の繋がり方から見たアクセス性と道路の傾斜, さらに人口分布の観点から, 生活関連施設の立地特性を調べた.その結果, 道路網のアクセス性と道路の傾斜では,
    白馬村
    に比べて小谷村で評価が低いなど, 両村で差があることがわかった.一方, 徒歩移動を考えた避難所の立地において, 利用圏内の人口分布割合は両村とも高いこと, また, フードデザートを考慮した食料品店の立地において, 徒歩による利用圏内の人口分布割合は両村とも低いことなどがわかった.

  • 吉村 豊文, 林 正雄, 芳西 修
    鉱物学雜誌
    1966年 8 巻 2 号 84-93
    発行日: 1966/11/30
    公開日: 2009/09/03
    ジャーナル フリー
  • 吉田 勝
    地学教育と科学運動
    2022年 89 巻 25-34
    発行日: 2022/11/25
    公開日: 2023/01/20
    ジャーナル フリー
  • 建設省土木研究所砂防部
    砂防学会誌
    1995年 48 巻 3 号 42-47
    発行日: 1995/09/15
    公開日: 2010/04/30
    ジャーナル フリー
  • 石村 大輔, 岡田 真介, 丹羽 雄一, 遠田 晋次
    活断層研究
    2015年 2015 巻 43 号 95-108
    発行日: 2015/09/30
    公開日: 2016/09/09
    ジャーナル フリー

    The surface rupture associated with the 22 November 2014 Nagano-ken-hokubu earthquake of Mj = 6.7(Mw = 6.2) occurred on the previously mapped Kamishiro fault, the northernmost section of the ItoigawaShizuoka Tectonic Line active fault system (ISTL). This is the first surface-rupturing earthquake occurred on one of the ~110 major inland active faults intensively evaluated by the Headquarters for Earthquake Research Promotion. We mapped the locations of the surface breaks along the rupture zone immediately after the earthquake, using handy GPS equipment. We also measured vertical and horizontal displacements at these sites using a conventional tape, folding ruler, simple hand level, and handheld laser finder. As a result, we found a N-S trending 9.2-km-long surface rupture and ground deformations mostly along the pre-existing scarp of the Kamishiro fault. Most of the surface ruptures involved flexural and warped surface deformation associated with significant contraction near the fault tip and local extension on the bended hanging wall. Observed deformation suggests that dip of the reverse fault changes to low-angle at shallow depth and deform unconsolidated sediments in the basins. The rupture trace is not simple: there are several short subsidiary faults including three rupture traces involving back-thrust faulting in the northern part. These features and the mapped distribution indicate an east-dipping reverse fault (east side up), which is consistent with early aftershock distribution and a geodetically inferred source fault. However, the amount of displacement associated with the 2014 earthquake was much smaller than the ones expected from previously conducted geomorphological and paleo-seismological studies. To seek the reason why we overestimated the rupture dimension, we need more peleo-seismic data (event age and displacement) and perform further tectonic geomorphological analyses.

  • 高瀬 達夫, 藤原 俊, 小山 健
    建設マネジメント研究論文集
    2008年 15 巻 91-102
    発行日: 2008/12/10
    公開日: 2010/06/04
    ジャーナル フリー
    近年の環境問題に対応して, 「ごみ処理に係るダイオキシン類発生防止法等のガイドライン」が策定されたことにともない, ごみ処理効率化のためにゴミ処理広域化が全国各地で計画・実施され始めているが, 広域化に伴い新たな建設計画が発表されると, 地域住民から反対されるケースが多くみられている.
    こうした反対運動の事例では, その選定過程の不透明さや情報の公開不足をきっかけとしていることが多い. こうしたことを鑑み本研究では, ごみ処理建設事業計画を進めて行く過程で必要不可欠である住民の合意を形成するために, 建設地選定によって生ずる住民間の不公平感を軽減するための手段として, 施設建設地の周辺地域に対する補償金を与えるという政策を提案し, 政策を行った場合の支払意志額を算出する. そして事例研究として, 現在ごみ処理広域化計画が進められている長野県大北地域を対象に, CVM (仮想市場評価法) を用いてごみ処理施設建設にともなう地域補償の評価を行った.
  • 鳥海 光弘, 山口 はるか
    日本地質学会学術大会講演要旨
    2003年 2003 巻
    発行日: 2003/09/10
    公開日: 2017/08/22
    会議録・要旨集 フリー
  • 高須 晃, 櫻井 剛, 柏原 由芙子, 南出 幸代
    日本地質学会学術大会講演要旨
    2003年 2003 巻
    発行日: 2003/09/10
    公開日: 2017/08/22
    会議録・要旨集 フリー
  • 小坂 共栄, 津金 達郎, 信州大学震動調査グループ
    地学教育と科学運動
    2017年 78 巻 16-20
    発行日: 2017/06/26
    公開日: 2020/06/02
    ジャーナル フリー
  • 石井 英也
    人文地理
    1977年 29 巻 1 号 1-25
    発行日: 1977/02/28
    公開日: 2009/04/28
    ジャーナル フリー
    Minshuku are cheap lodging houses or their management in a tourist resort. Most of them are usually operated by farmers and fishers as their side work. Minshuku has rapidly developed since about 1960 with the increase of recreational demands in Japan and minshuku regions have emerged here and there. Generally they were typical agricultural or fishing regions in less-developed areas in Japan. It is an urgent subject to clarify the conditions for the forming process of a minshuku region. The aim of this paper is to present the explanatory model of the forming process of a minshuku region by describing a representative one, in order to make clear where and on what conditions the minshuku region has been formed.
    Studies about minshuku are still few and requiring further systematic consideration for the studies. The author already wrote a paper which deals with the actual status of the development of minshuku in Japan. In this paper he made clear that the minshuku regions can be classified into those located at coastal bathing resorts and those located near skiing grounds. For that reason he examines here the forming process of a minshuku region, taking the case of Hakuba Mura, Nagano Prefecture, as a typical latter type.
    The results are summarized in Table 6.
    The period from about 1910 till world War 2 was the germinal stage for minshuku. In this period the region was primarily agricultural, for each household in this region made a living most by farming. But the agricultural productivity was very low in the case of most other snowy and cold highlands. Hence the farmers had necessarily to supplement their income by non-agricultural economic activities. Such state stimulated the emergence and development of minshuku with the spread of skiing and mountain climbing as sports, particularly since around 1930. Mountain slopes in this highland were generally wastelands or broad-leef woodlands, where the farmers were gathering grasses, straws and fuel woods. Such conditions could easily be used for making skiing grounds.
    The second stage was the period from World War 2 to about 1960. In this period the development of the region as a tourist resort got into its stride. After World War 2 the development of tourism such as the installation of ski lifts was made by the local capitals earlier than other similar regions, because Hakuba Mura was already well known as a tourist resort. It attracted the Tokyu capital of Tokyo, one of the greatest private railway companies and nation-wide tourist enterprises, which played later a large role in the development of Hakuba Mura. In these circumustances the farmers have made possible the development of minshuku by the best use of various regional conditions such as the presence of silkworm rearing rooms and stables or the low productive mountain slopes, which originated in the former economic activities. On the other hand, the techniques for rice growing have advanced and the compound management of minshuku with rice growing has been settled, because of the stability of producer price of rice and the better seasonal distribution of labour.
    The third stage was the period after 1961. In this period the capital investment for minshuku has been popularized and a result was differentiation of minshuku in respect to the scale of management. Various other tourist developments have also been made. Part of arable lands near the regional center have been converted to tourist facilities like parking places, sports grounds and so on by some of the minshuku which rely largely on minshuku rather than on agriculture. Many parts of wastelands and broad-leef woodlands were changed into skiing grounds and mountain cottage lands. For these developments much of the communal lands have been well utilized.
  • 松元 高峰, 河島 克久, 和泉 薫, 納口 恭明
    雪氷
    1998年 60 巻 1 号 37-46
    発行日: 1998/01/15
    公開日: 2009/08/07
    ジャーナル フリー
    1995年7月11~12日にかけて,北アルプス北部の白馬大雪渓周辺で集中豪雨が発生し,大雪渓を含む流域の上部で土石流が発生して雪渓上の広い範囲が堆積物に覆われた.それにともなって,白馬大雪渓上に長さ約1.3 km,幅6~8 m,深さ10~20 mの大規模な溝が形成された.溝は土石流堆積物分布域の中央を,雪渓上端から下端付近までほぼ直線的にのびている.夏季の融雪にともなって溝は拡大し,10月18日には幅が15 m以上となった.その時点で溝の面積は雪渓(支谷をのぞく本流部分)面積の20%に達した.溝の側壁には帯水層や粒径30~50cmの角礫を含む砂礫層など,雪渓の内部構造がみられたが,連続した氷化層は確認できなかった.空中写真判読と現地調査によって得られた溝の分布や形態,さらに雪渓上の土石流堆積物分布域との位置関係から,この溝は大雪渓上を流下した土石流が積雪層を侵食したことによって形成されたものと推定した.白馬大雪渓では,過去にこのような大規模な溝の形成が1952年に起こっている.多年性雪渓の形成・維持機構の解明のためには土石流が雪渓に与える影響を評価する必要がある.
  • *廣内 大助, 松多 信尚, 安江 健一, 竹下 欣宏, 道家 涼介, 佐藤 善輝, 石村 大輔, 石山 達也, 杉戸 信彦, 塩野 敏昭
    日本地理学会発表要旨集
    2017年 2017s 巻 P021
    発行日: 2017年
    公開日: 2017/05/03
    会議録・要旨集 フリー
    2014年長野県北部の地震で活動しなかった神城断層の北部区間が過去にいつ活動したのかを明らかにするために、トレンチ掘削調査,ボーリング調査,ピット調査を実施した.
  • 中埜 貴元, 飛田 幹男, 中島 秀敏, 神谷 泉
    活断層研究
    2015年 2015 巻 43 号 69-82
    発行日: 2015/09/30
    公開日: 2016/09/09
    ジャーナル フリー

    Inland earthquake (Mj 6.7) occurred around Northern Nagano Prefecture in November 22, 2014. Surface ruptures emerged over 9 kilometers or more length intermittently along Kamishiro fault derived from this earthquake. Geospatial Information Authority of Japan (GSI of Japan) implemented the interferometric SAR (InSAR) analysis by using PALSAR-2/ALOS-2 data in the earthquake area after the earthquake. In Addition, GSI of Japan elucidated the crustal deformation induced by the main shock and aftershock activity of the earthquake (GSI of Japan, 2015a). There were some discontinuities of interference phase in the InSAR imageries. We performed a field survey in northern Hakuba Village and Otari Village while referring to the discontinuities of interference phase in the InSAR imageries. At that time, surface displacement wasnʼt reported in Otari Village.

    As a result, the appearance position of surface ruptures matched the discontinuities of interference phase on the InSAR imagery in the northern Hakuba Village. Then, we discovered some surface displacements with relative east side uplifting and E-W shortening at the Dorosaki section and west side of JR Chikuni Station in Otari Village. These surface displacements appeared along the discontinuities of interference phase in the InSAR imageries. It is probable that these surface displacements were caused by activity of Himekawa fault. However, it is not clear whether there are surface rupture. These results indicate that InSAR imagery by using PALSAR-2/ALOS-2 data is able to detect surface displacement like surface rupture induced by earthquake. Moreover, InSAR imagery is useful to survey surface displacement widely.

  • 北アルプス山麓の人々に信仰された仏像からみた仏教信仰の変容
    清水 隆寿
    市立大町山岳博物館研究紀要
    2016年 1 巻 53-62
    発行日: 2016年
    公開日: 2020/10/01
    研究報告書・技術報告書 オープンアクセス
    本稿では、古代から江戸時代以前の北安曇地域(大町市及び北安曇郡)に残された仏教信仰の対象となった仏像について、当該地域の仏像の研究史を踏まえて集成・編年化するとともに、集成された北安曇地方に残された仏像を足掛かりに、中世に当地域を統治した仁科氏の創始と庄園の開始時期について推定を行うとともに、当該地域の古代から江戸時代以前の時代による様式の変化や仏像制作に関わる地域的特徴を述べる。
  • 遠藤 弘志
    やどりが
    2005年 2005 巻 204 号 32-34
    発行日: 2005/03/31
    公開日: 2017/08/19
    ジャーナル フリー
  • 菅沼 昭彦, 太田 文夫, 石川 芳治, 小山内 信智, 石塚 忠範
    砂防学会誌
    1996年 49 巻 2 号 35-44
    発行日: 1996/07/15
    公開日: 2010/04/30
    ジャーナル フリー
    The heavy rainfall caused by a front attacked the north Nagano prefecture and the south-west Niigata prefecture, in July, 1995.
    It caused gigantic sediment movement in Hime-kawa drainage area, and gave severe damage to the houses, road, railroad and many other infrastructures. Although there occured lots of debris-flows and landslides, no one was killed in this disaster.
    Therefore, in the interest of disaster prevention planning, we carried out a questionnaire on the action taken by the inhabitants to evacuate from the sediment-related disasters, and grasped the actual state of debrisflow warning and evacuation at that time.
  • 水野 秀明, 今井 一之, 長谷川 賢市
    砂防学会誌
    2005年 58 巻 2 号 51-57
    発行日: 2005/07/15
    公開日: 2010/04/30
    ジャーナル フリー
  • 中埜 貴元, 宇根 寛
    活断層研究
    2015年 2015 巻 43 号 133-147
    発行日: 2015/09/30
    公開日: 2016/09/09
    ジャーナル フリー

    In order to infer the shallow subsurface structure, especially the dip angle of the subsurface rupture, of the earthquake fault induced by the Northern Nagano Prefecture earthquake in 2014, we implemented ground penetrating radar (GPR) survey at several points of the Hakuba Village. We identified clear deformation of the reflection structure in the cross sections at Hokujo Shiojima and Oide Districts of Hakuba Village. Estimated dip angle of the subsurface rupture from the result were ca. 25-60 degrees. The dip angle is low as a shallow zone.

    We also observed the soil deformation derived from the slip of rupture on the wall of a trench for a drainage work at Hokujo Shiojima District. The depth and dip angle of this deformation correspond to those of deformation identified in the profile of GPR survey implemented nearby trench. Although we were not able to identify the clear deformation in the results of GPR survey implemented at Kamishiro Iida and Horinouchi Districts, previous studies indicate that the dip angle of the Kamishiro Fault in this area is assumed to be low. We conclude that the dip angle of the northern part of the subsurface rupture induced by this earthquake is relatively high. And the results have relation that the degree of damage to the buildings in the northern part of Hakuba Village was less severe than in the southern part, although larger vertical displacement of the surface rupture emerged in the northern part.

  • 勝部 亜矢, 近藤 久雄, 谷口 薫, 加瀬 祐子
    地質学雑誌
    2017年 123 巻 1 号 1-21
    発行日: 2017/01/15
    公開日: 2017/04/18
    ジャーナル フリー

    2014年11月22日長野県北部の地震(Mw6.2)に伴う地表地震断層は,既知の糸魚川-静岡構造線活断層系神城断層トレースに沿って約9kmの区間で認められる.地震破壊の南への伝搬は約1km幅の断層ステップ付近で停止したとみられ,地表地震断層長は神城断層の全長約24kmよりも短い.一方で,震源断層は地表地震断層北端からより北へ連続する.この地表地震断層長および震源断層長と地表で測定した最大変位量のネットスリップとの関係は,既存の回帰直線でよく説明できる.本地震は,神城断層の一部が活動した地震であり,地震前に想定されていた固有地震ではないと考えられる.しかし,神城断層では西暦1714年にも今回と同規模の地震が発生した可能性が示唆され,神城断層の非固有及び固有地震の発生頻度を理解するために,地震時変位量に基づき神城断層の古地震イベント像を再検討する必要がある.

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