지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.12
- 수록면
- 406 - 411 (6page)
이용수
초록· 키워드
오류제보하기
Serious problems in reclaimed land agriculture are high soil salinity and poor vertical drainage, so desalinization in these soils is very difficult. Also, although desalinization is accomplished in reclaimed top soils, before long, soils are resalinized according to capillary rise of salts from the subsurface soils. To resolve these problems, multi-layered soil columns with subsurface layer of macroporous medium utilizing coal bottom ash (CBA) were constructed and the effects of blocked resalinization of these soils were investigated. In this experiment soil samples were collected from Munpo series (coarse-loamy, nonacid, mixed, mesic, typic Fluvaquents). The soil texture was silt loam and the EC was 33.9 dS m<SUP>-1</SUP>. As for groundwater seawater was used and groundwater level of 1 cm from the bottom was maintained. The overall rate of capillary rise was 2.38 cm hr<SUP>-1</SUP> in soil 60 cm column, 0.25 cm hr<SUP>-1</SUP> in topsoil (30 cm) + CBA (5 cm) + subsurface soil (10 cm) column and 0.08 cm hr<SUP>-1</SUP> in topsoil (30 cm) + CBA (10 cm) + subsurface soil (10 cm) column. In multi-layered soil columns with CBA 20, 30 cm layer, wetting front due to capillary rise could not be seen in top soil layer. After 70 days capillary rise experiment water soluble Na+ accumulated in top soil of soil columns with CBA 20, 30 cm was diminished by 92.8, 96.5% respectively in comparison with Na+ accumulated in top soil of soil 60 cm column because CBA layer cut off capillary rise of salts from the subsurface soil. From these results we could conclude that the macroporous layer utilizing CBA placed at subsurface layer cut off capillary rise of solutes from subsurface soil, resulting in lowered level of salinity in top soil and this method can be more effective in newly reclaimed saline soil.
목차
Introduction
Materials and Methods
Results and Discussion
References
참고문헌 (19)
참고문헌 신청
1. [학술지(정기간행물)] - Akudago, J. A. / 2009 / Capillary cut design for soil-groundwater salinity control / Journal of the Faculty of Environmental Science and Technology 14 : 17 ~ 22
2. [학술지(정기간행물)] - Alperovitch, N. / 1985 / Effect of clay mineralogy and aluminum and iron oxides on the hydraulic conductivity of clay-sand mixtures / Clay and Clay minerals 33 : 443 ~ 450
3. [학술지(정기간행물)] - Bolan, N. S. / 1996 / Origin of the effect of pH on the saturated hydraulic conductivity of non-sodic soils / Commun. Soil Sci. Plant Anal 27 : 2265 ~ 2278
4. [학술지(정기간행물)] - Ch, Y. K. / 1992 / Effects of decreasing methods of salt content in root zone on soil properties and crop growth at the reclaimed tidal soil / Korean J. Soil Sci. Fert 25 : 127 ~ 132
5. [학술지(정기간행물)] - 이주영 / 2010 / 석탄바닥재 처리가 골프장 잔디식재 사질토양의 이화학성에 미치는 영향 / Weed & Turfgrass Science 24 (2) : 199 ~ 204
2. [학술지(정기간행물)] - Alperovitch, N. / 1985 / Effect of clay mineralogy and aluminum and iron oxides on the hydraulic conductivity of clay-sand mixtures / Clay and Clay minerals 33 : 443 ~ 450
3. [학술지(정기간행물)] - Bolan, N. S. / 1996 / Origin of the effect of pH on the saturated hydraulic conductivity of non-sodic soils / Commun. Soil Sci. Plant Anal 27 : 2265 ~ 2278
4. [학술지(정기간행물)] - Ch, Y. K. / 1992 / Effects of decreasing methods of salt content in root zone on soil properties and crop growth at the reclaimed tidal soil / Korean J. Soil Sci. Fert 25 : 127 ~ 132
5. [학술지(정기간행물)] - 이주영 / 2010 / 석탄바닥재 처리가 골프장 잔디식재 사질토양의 이화학성에 미치는 영향 / Weed & Turfgrass Science 24 (2) : 199 ~ 204
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UCI(KEPA) : I410-ECN-0101-2016-521-000952057