THE PROCESSES OF GULLY DEVELOPMENT AND SEDIMET YIELD

• MIZUSHIMA Hiroki

  東北大学大学院工学科 土木工学専攻

• IZUMI Norihiro

  東北大学大学院工学科 土木工学専攻

Bibliographic Information

Other Title

• ガリの発達とそれに伴う土砂生産過程

Abstract

Surface flow produced by heavy rainfall concentrates on local troughs, resulting in further erosion of troughs and the formation of gullies. In the development process of gullies, a great amount of soil runs off. In this study, long-term changes of topography around gullies formed on Soya Hill are analysed with the of present and old topographical maps. In the analysis, detailed processes of gully development are revealed, and the annual average sediment yield is estimated to be 60 mm/year. We also conduct a field observation of a gully and a field survey around the gully head. It is found that the channel head is in the precess of spliting into three branches.

Journal

• PROCEEDINGS OF HYDRAULIC ENGINEERING

  PROCEEDINGS OF HYDRAULIC ENGINEERING 50 1051-1056, 2006

  Japan Society of Civil Engineers

Keywords

• gully erosion
• channel head
• sediment yield
• development process of gullies

Details

• CRID: 1390001205169565824
• NII Article ID: 130004043746
• DOI: 10.2208/prohe.50.1051
• ISSN: 18849172
• ISSN: 09167374
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed