Spatial evaluation of sediment production rates by grain size based on topographical, geological and soil features in mountainous watersheds
Project/Area Number |
23760466
|
Research Category |
Grant-in-Aid for Young Scientists (B)
|
Allocation Type | Multi-year Fund |
Research Field |
Hydraulic engineering
|
Research Institution | Kagoshima University |
Principal Investigator |
SAITA Tomonori 鹿児島大学, 大学院理工学研究科, 准教授 (80432863)
|
Project Period (FY) |
2011 – 2012
|
Project Status |
Completed (Fiscal Year 2012)
|
Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
|
Keywords | 水工水理学 / 土砂生産 / 土砂動態 / 元素組成 / 土壌分類 / 土地利用 / 表層地質 / 流域 / 粒土組成 / 地球化学図 |
Research Abstract |
In this study, field observations on suspended sediment transport were carried out to evaluate fine sediment production rates in upstream sites of the Sendai River basin. And mapping of soil characteristics in the Kakuto Basin were carried out to detect dominant producing areas of fine sediments. As a result of these observations, it is clarified that the Hatsuki River basin, the most major branch of the upper Sendai River, is an area of a relatively high sediment production rate and that the southern part of Okuchi basin is on a depositional trend. In addition, a possibility of area classification on the space scale comparable to small watersheds based on elementary composition of soil is indicated.
|
Report
(3 results)
Research Products
(4 results)