Evaluation of Runoff Reducing Function of Traditional Paddy Field
(2023) In TVVR 5000 VVRM01 20231Division of Water Resources Engineering
- Abstract
- As there is an increasing trend in the large-scale flood disaster caused by short-duration rainfall in Japan, the discussion of the disaster prevention is renewed into “River Basin Disaster Resilience and Sustainability by All” recently. Given the enormous impact of maximum runoff on flood damage, this study mainly focuses on the peak-cutting and detention effect in the agricultural area where farmland consolidation has been considered to be affecting on the runoff. The research is composed of field survey and modelling. The aim of this study is to compare the runoff reducing function between consolidated and unconsolidated area(i.e. traditional paddy field) and to create the model based on the data observed in field survey. According to... (More)
- As there is an increasing trend in the large-scale flood disaster caused by short-duration rainfall in Japan, the discussion of the disaster prevention is renewed into “River Basin Disaster Resilience and Sustainability by All” recently. Given the enormous impact of maximum runoff on flood damage, this study mainly focuses on the peak-cutting and detention effect in the agricultural area where farmland consolidation has been considered to be affecting on the runoff. The research is composed of field survey and modelling. The aim of this study is to compare the runoff reducing function between consolidated and unconsolidated area(i.e. traditional paddy field) and to create the model based on the data observed in field survey. According to the results of the field survey, the traditional paddy field has a greater peak-cutting and detention effect. The reason for these effect can be attributed to the large infiltration effect, length and the geometrical condition of water channel network and high rougness of the channels. During the modelling process, the model was developed until the peak and approximate flow rates could be detected. However, modifications are required for a more realistic simulation, particularly with regard to the geometrical data of the channels. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9114505
- author
- Takesue, Mizuki LU
- supervisor
- organization
- course
- VVRM01 20231
- year
- 2023
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- Flood, River Basin Disaster Resilience and Sustainability by All, Peak-cutting, Detention effect, Unsteady flow analysis
- publication/series
- TVVR 5000
- report number
- TVVR23/5002
- ISSN
- 1101-9824
- language
- English
- additional info
- Examiner: Magnus Larson
- id
- 9114505
- date added to LUP
- 2023-05-15 13:38:04
- date last changed
- 2023-05-15 13:38:04
@misc{9114505, abstract = {{As there is an increasing trend in the large-scale flood disaster caused by short-duration rainfall in Japan, the discussion of the disaster prevention is renewed into “River Basin Disaster Resilience and Sustainability by All” recently. Given the enormous impact of maximum runoff on flood damage, this study mainly focuses on the peak-cutting and detention effect in the agricultural area where farmland consolidation has been considered to be affecting on the runoff. The research is composed of field survey and modelling. The aim of this study is to compare the runoff reducing function between consolidated and unconsolidated area(i.e. traditional paddy field) and to create the model based on the data observed in field survey. According to the results of the field survey, the traditional paddy field has a greater peak-cutting and detention effect. The reason for these effect can be attributed to the large infiltration effect, length and the geometrical condition of water channel network and high rougness of the channels. During the modelling process, the model was developed until the peak and approximate flow rates could be detected. However, modifications are required for a more realistic simulation, particularly with regard to the geometrical data of the channels.}}, author = {{Takesue, Mizuki}}, issn = {{1101-9824}}, language = {{eng}}, note = {{Student Paper}}, series = {{TVVR 5000}}, title = {{Evaluation of Runoff Reducing Function of Traditional Paddy Field}}, year = {{2023}}, }