| Project/Area Number |
02660244
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
農業土木
|
|---|
| Research Institution | Tokyo University of Agriculture |
|---|
Principal Investigator |
NAKAMURA Yoshio Tokyo University of Agriculture Department of Agriculture, Instructor, 農学部, 講師 (40078192)
|
|---|
| Project Period (FY) |
1990 – 1991
|
| Project Status |
Completed (Fiscal Year 1991)
|
| Budget Amount *help |
¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥700,000 (Direct Cost: ¥700,000)
|
|---|
| Keywords | Snow Removal Canal / Snow Disposition / Snow Disposition Right / Water Use in Water / Water Pollution / Water Management / Cost Back Allocation / Public Effects of Facilities / バックアロケ-ション / 用水管理 / 水利組合 / 土地改良区 / 水利運営 |
|---|
| Research Abstract |
This research is made on the case of four prefectures ; Akita, Yamagata, Niigata and Toyama. There are three types of snow removal technology, taking water, pipe line system, canal system and flow on road system. Especially canal system is the most popular technology for snow removal.
Problems on using agricultural water for snow removal are showed next ; (1) Low irrigation water temperature by longitudinal slope allotment (it is good for snow flash on large slope, but it is not good for irrigation water temperature). (2) Hydraulic problem of exchange most effective cross section (improvement trapezoid section to rectangle section). (3) Establishment of snow disposition right and regulation of water use. (4) Irrigation Water pollution, refuse water from houses. (5) Damage of irrigation and drainage canal by throwing snow into the canal. (6) Problem of canal improvement methods for water environment. (7) Use agricultural water and facilities for snow removal and back allocation system. (8) Public effects and assessment for overhead expense.
Research subjects from now on, are ; (1) Redistributing water source and water management. (2) Conservating agricultural water for pollution. (3 )Operating irrigation organization (land improvement district).
|
