Weed & Turfgrass Science

The Korean Society of Weed Science & The Turfgrass Society of Korea Archive (한국잡초학회 & 한국잔디학회)
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Effect of Turfgrasses to Prevent Soil Erosion

잔디류가 토양유실 방지에 미치는 영향

  • Ahn, Byung-Goo (Department of Green Landscape Architecture Science, Dankook Univ.) ;
  • Choi, Joon-Soo (Department of Green Landscape Architecture Science, Dankook Univ.)
  • 안병구 (단국대학교 녹지조경학과) ;
  • 최준수 (단국대학교 녹지조경학과)
  • Received : 2013.09.09
  • Accepted : 2013.12.03
  • Published : 2013.12.31
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Abstract

Recent climatic changes by global warming include increased amount and intensity of rainfall. This study was conducted to find out possible roles of turfgrasses to reduce the impact of climatic changes, especially surface soil erosion. Soil erosions by intensive rain were measured after each significant precipitation from the artificially sloped plots of zoysiagrass, cool-season grass mixture of Kentucky bluegrass and perennial ryegrass and other typical korean summer crops. Sodded zoysiagrass resulted in minimal annual soil erosion followed by strip-sodded zoysiagrass and cool-season turfgrass mixture while dry-field rice and bean cultivations eroded the surface soils of 5 to 10 MT $ha^{-1}yr^{-1}$ and pepper cultivation resulted in 7 to 14 MT $ha^{-1}yr^{-1}$ annual loss of surface soil. Annual loss of surface soil from bare land with hand weeding was up to 18 MT $ha^{-1}yr^{-1}$ while greatly reduced soil erosion was observed from weed grown treatment.

지구온난화로 인한 기후변화로 인하여 강수량과 집중강우의 빈도가 높아질 것으로 예측된다. 본 연구는 잔디류와 기타 식량 원예작물 들의 토양유실을 알아보고자 수행하였다. 작물별 토양유실은 한국잔디와 한지형잔디 처리구의 강수량 및 강우 강도와 상관없이 토양유실이 거의 발생하지 않아서 토양침식에 대한 보호 효과가 매우 우수하였다. 작물별 연간 토양 침식 총량은 한국잔디로 전면 피복된 곳이 가장 적었으며, 그다음 줄떼로 조성된 한국잔디와 한지형잔디로 피복된 실험구에서 토양침식이 매우 적었다. 그리고 밭벼와 콩 재배구에서 5~10 $MT{\cdot}ha^{-1}{\cdot}yr^{-1}$, 고추 재배구에서 7~14 $MT{\cdot}ha^{-1}{\cdot}yr^{-1}$의 토양침식량이 발생되었다. 잡초가 방치된 실험구의 토양침식이 크게 감소된 것에 반하여 잡초가 제거된 나지의 연간 토양침식 총량은 18 $MT{\cdot}ha^{-1}{\cdot}yr^{-1}$이상 크게 발생되었다.

Keywords

References

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  2. Effect of Forage Species, Mixed Pastures and Mesh on Forage Yields and Botanical Composition for Rapid Establishment of Grassland at Cutting Area in Middle Region of Korea vol.38, pp.1, 2018, https://doi.org/10.5333/KGFS.2018.38.1.61