토양피침식력(K-factor)의 다양성-자연강우에서의 토양침식구 실험을 통하여-
The Variety of Soil Erodibility(K-factor) by Erosion-plot Experiment during Rainfall
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초록
본 연구에서는 자연강우를 이용한 현장침식실험을 통하여 강우사상별 강우에너지를 산출하고, 이에 따른 토양피침식성(Ke) 값을 구하였다. 연구기간은 2004년 4월에서 5월까지 세번의 강우사상에 대하여 복하천 유역의 6개 지역을 대상으로 침식실험을 하여 다음과 같은 결론을 도출하였다. 실험에서 구해진 토양피침식성(Ke) 값는 사면경사 10˚의 밭에서 토양유실이 가장 많은 것으로 나타났다. 토양피침식성이 유동적인 값을 보임에 따라 특정 지역의 토양유실을 산정함에 있어서는 계속적인 현지에서의 실험과 보정이 필수적이다.
Abstract
At this research, respective rainfall event and rainfall kinetic energy were computed by means of inwe reached the conclusion like this. The value of K(soil erodibility) obtained at this research can be variable according totime and condition. The result of the erosion plot experiment shows that the rainfall event within index 3.4 has the mostsoil loss at the field of slope 10. According to the variety of soil erodibility, it seems that the continuous experiment andcorrection are essential to calculate soil loss in the specific region.
참고문헌 (19)
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