토지이용 제한인자를 활용한 농업적 토지이용 적합성 분석 - 경상남도 창녕군 이방면을 대상으로 -

Abstract

The excessive land activities in farming can cause soil erosion, inundation by a flood, andfallow. So far land evaluation has been analyzed using the land use limitation derived from theexcessive land activities. This study was done for evaluating the agricultural fields by using 3land use limitations, inundation potential, soil erodibility potential, and fallow potential. Thestudy area is Ibang-myeon, Changnyeong-gun, Gyeongnam-province, Korea.A logistic regression model was applied to recognize the inundation potential by a flood inthe Nakdong river basin. And potential soil erodibility index (PSEI) was derived from USLEmodel to analyze the soil erodibility potential. And a probability model from a logisticregression model was applied to detect the fallow potential.Therefore, we found 220.7ha for the 4th grade and 86.1ha for the 5th grade was analyzed aswater damage potential. Large area near Nakdong river have problem to grow the rice due tothe damage by water inundation. And 213.6ha for the 3rd grade and 103.3ha for 4th grade wasdetected as a result of the analysis of soil erosion potential. The soil erosion potential was highwhen within-field integrity of soil was not stable, or the kinetic energy was high or the slopelength was long due to a steep slope of a specific land. And 869.1ha for 3rd grade, 174.9ha for4th grade, and 110.6ha for 5th grade was detected to be distributed having the fallow potential.Corresponding Author: In-Hwan Park, Dept. of Landscape Architecture, Coll. of Agr. & Life, Kyungpook National University Tel: +82-53-950-5784 E-mail: parkin@knu.ac.kr