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1. How Does the Japanese Water Shrew Chimarrogale platycephalus Cross the Concrete Walls of Check Dams?

Author:
Hiroaki Saito; Hiroshi Hashimoto; Teruaki Hino; Masaharu Motokawa
Source:
Mammal study 2019 v.44 no.1 pp. 1-11
ISSN:
1348-6160
Subject:
concrete; dams (hydrology); rivers; sediments; shrews; streams; surveys; Japan
Abstract:
... The concrete walls of check dams are considered a physical barrier for aquatic and semiaquatic animals that inhabit mountain streams. Traveling behaviors around concrete check dams by the Japanese water shrew Chimarrogale platycephalus, a semi-aquatic mammal, were directly observed via radio-tracking in Kamikoshi Stream in central Honshu, Japan. Traveling behaviors were mainly observed on the wet ...
DOI:
10.3106/ms2017-0056

2. Regional Economic Impacts from Timber Check Dam Construction—A Comparison with Concrete Check Dam Construction

Author:
Tomohumi Huzita; Ryu Noda; Chihiro Kayo
Source:
Forests 2020 v.11 no.10 pp. -
ISSN:
1999-4907
Subject:
business enterprises; concrete; dams (hydrology); disaster preparedness; disasters; economic impact; flood control; harvesting; income; input output analysis; interviews; lumber; prices; rain; runoff; sediments; typhoons; Japan
Abstract:
... Recently, many mountain disasters caused by natural phenomena, such as typhoons and heavy rains, have struck Japan, where check dams are used as important disaster prevention structures. Meanwhile, increased timber use in Japan is expected to revitalize regional economies, thus drawing attention to the use of timber in check dams. However, comparisons between timber and concrete check dams, in ter ...
DOI:
10.3390/f11101073

3. Coastal erosion and shore protection: A brief historical analysis

Author:
Enzo Pranzini
Source:
Journal of coastal conservation 2018 v.22 no.5 pp. 827-830
ISSN:
1400-0350
Subject:
clay; coastal plains; coasts; concrete; deforestation; human development; humans; resorts; river deltas; rivers; sea level; sediments; stream channels; subsidence; tourists; wetlands; wood; China; Japan; Yellow River
Abstract:
... Since the Neolithic, humans have gathered along coastal plains, where they had to face sea level rise and subsidence without the technology to oppose these processes. When sea level stabilized, approx. 6.000 yr. B.P., coastal colonization was allowed, but where mountain deforestation was carried out river sediment input increased tremendously: settlements were disconnected from the shore and harbo ...
DOI:
10.1007/s11852-017-0521-9

4. A novel method of surveying submerged landslide ruins: Case study of the Nebukawa landslide in Japan

Author:
Shintaro Yamasaki; Toshitaka Kamai
Source:
Engineering geology 2015 v.186 pp. 28-33
ISSN:
0013-7952
Subject:
acoustics; case studies; coasts; concrete; earthquakes; engineering; equipment; fish; friction; landslides; sediments; surveys; turbulent flow; Japan
Abstract:
... We investigated submerged ruins from the 1923 Nebukawa landslide, which was caused by the 1923 Kanto earthquake. The on-land areas affected by the landslide have been restored and evidence of the landslide is mostly gone, but huge structures that appear to be man-made have been observed by divers on the seafloor near the area of the landslide. We used a fish finder designed for leisure use and oth ...
DOI:
10.1016/j.enggeo.2014.11.010