1993 Fiscal Year Final Research Report Summary

Study on Nitrogen Outflow from Agricultural Area

Research Project

Project/Area Number	03402048
Research Category	Grant-in-Aid for General Scientific Research (A)
Allocation Type	Single-year Grants
Research Field	農業土木
Research Institution	The University of Tokyo
Principal Investigator	TABUCHI Toshio Univ. of Tokyo, Faculty of Agri., Professor, 農学部, 教授 (00011833)
Co-Investigator(Kenkyū-buntansha)	HOSHINO T. Univ. of Tokyo, Faculty of Agri., Associate prof, 農学部, 助手 (40238738) YOSHINO K. Univ. of Tokyo, Faculty of Agri., Associate prof, 農学部, 助手 (60182804) YAMAJI E. Univ. of Tokyo, Faculty of Agri., Associate prof, 農学部, 助教授 (10143405)
Project Period (FY)	1991 – 1993
Keywords	Remote Sensing / Landuse / Nitrogen / Water Purification / Nitrogen outflow / Nitrate
Research Abstract	Nitrogen concentration of stream waters and landuse in the agricultural area The relations between NO3-n concentration and landuse were investigated in Hokkaido area High concentration of NO3-N were measured in the ground water under the vegetable field in Kanto area Nitrogen removal in paddy fields Nitrogen removal were measured in paddy fields The effect of NO3-N concentration and temperature on nitrogen removal were investigated, and the equation of nitrogen removal was introduced

(4 results)