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한국생태학회 / v.20, no.2, 1997년, pp.133-143 
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서해안 간척지 토성과 탈염
( Soil Texture and Desalination after Land Reclamation on the West Coast of Korea ) |
| 민병미;김준호; 단국대학교 분자생물학과;서울대학교 생물학과;
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| 초 록 |
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| From 1984 to 1989 reclaimed coastal lands in Choongnam Province of the western coast of Korea were studied for soil texture at three sites(Daeho, Hyundai A and Hyundai B) and for desalination one site(Hyundai B). The soil textures of varied sites in Hyundai A were horizontally similar and composed of 39-40% clay, 40-49% silt and 8-14% sand. But those in Da돼 and Hyundai B differed horizontally in the same area and vertically at the same site. Soil texures of Da돼 were composed of 15-17% clay, 30-45% silt and 40-55% sand and those of Hyundai B were composed of 22-45% clay, 26-49% silt and 17-31% sand. The measured electrical conductivity(EC), which represents whole salt content of the reclaimed soil, decreased year by year. The vertical distribution of the EC changed temporally and spatially in the upper zone above a 50 cm depth but not in The lower zone below a 50 cm depth. The EC valus of the soil were inversely proportional to the magnitued of annual precipitation, evaporation and the numbers of rainy days with r equalling -0.97. But the annual decrease of the EC was directly proportional to climatic factors with r=0.7. Salt in the reclaimed land was leached out by the percolative action of surplus rain water, or moved up by evaporation and carried away by running rain water. The running out of the salt on the soil surface was most efficiently carried out over 10 mm precipitation per day. |
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| 키워드 |
| Soil texture;Desalination;Reclaimed soil;Precipitation;Coast;Climatic factor;Electric conductivity; |
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The Korean Journal of Ecology / v.20, no.2, 1997년, pp.133-143
한국생태학회
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711919962544)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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