한국수자원학회논문집 (Journal of Korea Water Resources Association)

  • 제44권5호
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  • Pages.351-362
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  • 2011
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  • 2799-8746(pISSN)
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  • 2799-8754(eISSN)
한국수자원학회 (Korea Water Resources Association)
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설마천 범륜사 사면 유출과정의 이해를 위한 실측토양수분 상관도 분석

Soil Moisture Measurements and Correlation Analysis to Understand the Runoff Generation Process for a Bumrunsa Hillslope of Sulmachun Watershed

  • 김상현 (부산대학교 공과대학 환경공학과) ;
  • 강미정 (부산대학교 대학원 환경공학과) ;
  • 곽용석 (부산대학교 대학원 환경공학과)
  • 투고 : 2011.02.18
  • 심사 : 2011.04.21
  • 발행 : 2011.05.31
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초록

이연구에서는산지사면에서측정된토양수분의상관관계분석을수행하고, 이를 통하여 사면에서 발생되는 수문과정의 이해를 도모하였다. 토양수분을 변화시키는 공통된 주요 수문기상인자인 강우의 추계학적인 특성을 토양수분의 시계열로부터 제거하고, 상관성 분석을 수행하였다. 경기도 파주 설마천 범륜사에 위치하고 있는 사면에서 2007년 8월 1일에서 27일 사이의 기간과 동년 9월 18일에서 10월 8일간의 기간에 토양수분 자료를 사용하여 분석을 수행하였고, 수행된 분석은 대상사면의 연직흐름, 수평흐름, 충전흐름, 복류수 흐름의 크기와 분포에 대해서 각각 8곳, 14곳, 7곳, 7곳의 관계를 보여주고 있다. 도출된 토양수분의 상관관계는 공간적으로는 상부사면에서 하단부로 진행되는 사면에서의 수문과정의 변화 양상을 보여주고 있고, 시간적으로는, 장마철의 경우는 토양구조체와 대공극 흐름이 모두 중요한 지배인자이지만, 가을철의 경우는 토양구조체의 흐름이 주요한 역할을 하는 것으로 판단된다.

The soil moisture measurements and correlation analysis are presented to improve understanding the hydrological process at the hillslope scale. The rainfall events is a main driver of soil moisture variation, and its stochastic characteristic need to be properly treated prior to the correlation analysis between soil moisture measurements. Using field measurements for two designated periods during the late summer and autumn seasons in 2007 obtained from the Bumrunsa hillslope located at the Sulmachun watershed, prewhitened correlation analysis were performed for 8, 14, 7 and 7 relationships representing the vertical, lateral, recharge and return flows, for two designated periods, respectively. The analysis indicated both temporal and spatial variation patterns of hydrological processes, which can be explained by the relative contribution of matrix and macropore flows and the impact of transect topography, respectively.

키워드

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