부산대학교 도서관

The objective of this study is to evaluate effects of flood to agriculture and relationships between flood magnitude and agriculture productivity. By using a phosphorous transport model, potential cropping times was calculated limited by phosphorous, inundation water and both phosphorous and inundation water. Conclusions are as follows: 1) Current area ratio of paddies to reservoirs has high productivity in a middle magnitude flood year. 2) A large flood year has an advantage on obtaining phosphorous at the flood plain. 3) Differences of the potential cropping times limited by inundation water in flood magnitude is relatively small compared with phosphorous. 4) Although differences of the potential cropping times limited by both phosphorous and inundation water in flood magnitude is small, potential productivity through the area is high in a large flood year because of a huge inundation area. 5) Potential cropping times limited by both phosphorous and inundation water can express variations of harvested area (r=0.68).