Journal of Forest and Environmental Science

Institute of Forest Science, kangwon National University (강원대학교 산림과학연구소)
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Effect of environment-favored Geo-textile mulching sheet on artificial slope - With Vegetation growth, Runoff-water, Suspended Sediment, Sediment Yield -

Geo-textile 피복자재가 인공비탈면 안정에 미치는 영향(I) -식생변화, 유출수량, 부유물질량 및 토사유출 변화를 중심으로-

  • Yeom, Kyu-Jin (Department of Forestry, Graduate School, Kangwon National University) ;
  • Moon, Jin-Hee (Department of Forestry, Graduate School, Kangwon National University) ;
  • Ezaki, Tsugio (College of Agriculture Ehime University) ;
  • Chun, Kun-Woo (Division of Forest Resources, College of Forest Sciences, Kangwon National University)
  • Published : 2003.06.30
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Abstract

The effects that the geo-textile mulching sheet has influenced on the runoff-water, suspended solid, sediment yield and vegetation growth are as follows in artificial slope 1. The flora of plots was composed 12 families, 21 genera, 20 species, 2 varieties, total 22 taxa. 2. The geo-textile mulching sheet is effective on increasing of introduced vegetation population, number of species and vegetation coverage, but just only with the mulching sheet it shows limit of was somewhat difficult to expect the increase of the existence ratio. 3. The amount of runoff-water increased in proportion to rainfall and at mulched plots were about 1/15.5 as decreased as that of un-mulched plots. 4. The amount of suspended sediment increased in proportion to rainfall and at mulched plots were about 1/47 as decreased as that of un-mulched plots. 5. Also, the amount of sediment yield increased in proportion to rainfall and at mulched plots were about 1/151 as decreased as that of un-mulched plots. so, multi-function- filter is very effective on prevention of soil erosion.

인공 비탈면에 있어서 Geo-textile 소재의 피복자재가 유출수량, 부유물질량, 유출토사 및 식생생육에 미치는 영향을 파악한 결과는 다음과 같다. 1. 식생의 종류조성은 12과 21속 20종 2변종 총 22종류였으며, Geo-textile 소재의 피복자재가 파 종종자의 개체수 및 시험구의 피복율을 증가시키는데는 효과적이었지만 비탈면 녹화에는 한계가 있는 것으로 나타났다. 2. 유출수량은 강우량에 비례하여 증가하였고 피복자재구가 미설치구보다 최대 1/15.5 배 저감되었다. 3. 부유물질량과 유출토사량은 강우량에 비례하여 증가하였다. 피복자재구가 미설치구보다 각각 최대 1/47, 1/151 배로 저감되어 피복자재가 부유사 및 토사의 유출억제에 매우 효과적인 것으로 나타났다.

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