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굴 패화석시용에 따른 토양 내 중금속 동태 변화 / 이주영 ; 홍창오 ; 이창훈 ; 이도경 ; 김필주 1
ABSTRACT 1
서론 1
재료 및 방법 2
굴패화석 비료의 특성 2
토양 내 중금속함량 조사 및 중금속 분획 2
결과 및 고찰 3
수량특성 3
토양의 이화학적 특성 3
중금속의 총 함량 3
0.1N HCl 가용성 중금속 3
침출형태별 중금속성분의 함량변화 4
식물체의 중금속 흡수 5
요약 5
참고문헌 5
초록보기
굴 패화석은 남해안의 굴양식 지역을 중심으로 발생량이 매년 증가되고 있으나 재활용율이 낮아 지역적으로 문제가 되므로 토양개량제로서 재활용하고자, 굴 패화석에 소량 포함되어 있는 중금속이 배추의 수량 및 중금속흡수 특성과 토양 내 중금속의 이동성에 미치는 영향을 조사하여 다음과 같은 결론을 얻었다. 굴 패화석 시용에 따른 토양 내 0.1N HCl 가용 중금속 함량은 토양오염 우려기준 이하로 굴 패화석을 다량시용 함에 따른 중금속성분의 토양 내 축적은 없었다. 굴 패화석 시용량 증가에 따라 토양 내 중금속성분의 총 함량은 미미한 수준에서 증가하는 경향을 보였으나, 대부분의 중금속성분은 생물체 흡수가 불가능한 광물 내 고정된 중금속성분의 형태(residual phase)로 존재하였다. 패화석의 시용량을 증가시킴에 따라 배추 체내 Cu, Mo, Zn의 흡수량은 다소 증가하는 경향을 보였으나 우려할 만한 수준은 아니었으며 생육기간 동안 육안적으로 특정 이온과다에 의한 독성증상은 나타나지 않았다. 이상의 결과를 통해 굴 패화석 시용은 토양의 pH 개선, 중금속 축적의 배제는 물론, 작물 수량증대에 효과가 현저하므로 양질의 토양개량제로서 활용이 가능한 것으로 판단되었다.
A large amount of oyster-shell waste has been illegally disposed at oyster farm sites along the southern coast of Korea, which already created serious environmental problems. Therefore, the study was undertaken to increase the consumption of oyster shell meal as a soil amendment. The effects of oyster shell meal on dynamics of heavy metals and uptake of heavy metals by spring Chinese cabbage were evaluated in silt loam soil (in Gyeongsang National University, Jinju, Gyeongnam-do, Korea), where 0, 4, 8, 12 and 16 Mg ha-1 oyster-shell meal fertilizer were added. Lime treatment (2 Mg ha-1) was selected as a control. In the results of this study, cabbage yields were increased by increasing levels of oyster-shell meal fertilizer. With increasing levels of oyster-shell meal fertilizer, total heavy metals concentrations were not significant among treatments. However, 0.1N HCl extractable heavy metals concentration was significantly reduced due to increasing of soil pH. A lot of portion (ca. 80～90%) heavy metals fraction of all fractions was residual phase in soil after harvesting. The contents of Cu, Mo, Zn in cabbage were slightly increased by increasing levels of oyster shell meal fertilizer. However, there were no toxic symptoms of heavy metals during cultivation. Conclusively, it was estimated that oyster shell fertilizer could be a good amendment to increase productivity of crop and reduce uptake of heavy metals by crop and mobility of heavy metals in soil.
A large amount of oyster-shell waste has been illegally disposed at oyster farm sites along the southern coast of Korea, which already created serious environmental problems. Therefore, the study was undertaken to increase the consumption of oyster shell meal as a soil amendment. The effects of oyster shell meal on dynamics of heavy metals and uptake of heavy metals by spring Chinese cabbage were evaluated in silt loam soil (in Gyeongsang National University, Jinju, Gyeongnam-do, Korea), where 0, 4, 8, 12 and 16 Mg ha-1 oyster-shell meal fertilizer were added. Lime treatment (2 Mg ha-1) was selected as a control. In the results of this study, cabbage yields were increased by increasing levels of oyster-shell meal fertilizer. With increasing levels of oyster-shell meal fertilizer, total heavy metals concentrations were not significant among treatments. However, 0.1N HCl extractable heavy metals concentration was significantly reduced due to increasing of soil pH. A lot of portion (ca. 80～90%) heavy metals fraction of all fractions was residual phase in soil after harvesting. The contents of Cu, Mo, Zn in cabbage were slightly increased by increasing levels of oyster shell meal fertilizer. However, there were no toxic symptoms of heavy metals during cultivation. Conclusively, it was estimated that oyster shell fertilizer could be a good amendment to increase productivity of crop and reduce uptake of heavy metals by crop and mobility of heavy metals in soil.
권호기사
참고문헌 (29건) : 자료제공( 네이버학술정보 )
| 번호 | 참고문헌 | 국회도서관 소장유무 |
|---|---|---|
| 1 | (1979) Plan for disposal of oyster shell meal. Report of research estimate in province. p. 402-426., | 미소장 |
| 2 | (1991) Countermeasure for disposal of oyster shell meal. Report of research estimate in province. Changwon., Gyeongnam-province. | 미소장 |
| 3 | (1993a) Engineering characteristics of sand mixed with crushed oyster-shell. In 29th Proceeding of Japan Geotechnical Society. p. 869-872., | 미소장 |
| 4 | (1993b) Application to sand compaction pile and characteristics of sand mixed with crushed oyster-shell. In 29th Proceeding of Japan Geotechnical Society. p. 717-720., Hashidate | 미소장 |
| 5 | (1997) Effect of oyster shell fly ash and gypsum application on rice yield and quality. , | 미소장 |
| 6 | (1998) Consolidation characterisctis of saturated soil mixed with crushed-shell and clay., | 미소장 |
| 7 | (2000) Geo-material properties of wasted oyster-shell-sand mixture and its application as material for sand compaction pile. In 29th Proceeding of Coastal Geotechnical Engineering in Practice. Balkema, Balkema, | 미소장 |
| 8 | (1994) The experiment to evaluate ability of oyster shell meal to neutralize acidic soil and to utilize oyster shell meal as material of underdrain. Annual report of national Gyeongnam agricultural experiment station. p. 535-545., | 미소장 |
| 9 | (1995) Composition of crushed oyster shell and its application effect on vegetables. , | 미소장 |
| 10 | (1993) Annual reserch report in 1993. p. 430-441., Gyeongsangnamdo Agricultural Reserch and Extension Services. | 미소장 |
| 11 | (1994) Annual reserch report in 1994. p. 535-545., Gyeongsangnamdo Agricultural Reserch and Extension Services. | 미소장 |
| 12 | (1995) Annual reserch report in 1995. , Gyeongsangnamdo Agricultural Reserch and Extension Services. | 미소장 |
| 13 | (1996) Annual reserch report in 1996. , Gyeongsangnamdo Agricultural Reserch and Extension Services. | 미소장 |
| 14 | (1997) Annual reserch report in 1997., Gyeongsangnamdo Agricultural Reserch and Extension Services. | 미소장 |
| 15 | (2000) Annual reserch report in 2000., Gyeongsangnamdo Agricultural Reserch and Extension Services. | 미소장 |
| 16 | (2003) Gyeongnam statistical yearbook., | 미소장 |
| 17 | (2005a) Effect of oyster-shell meal on improving spring chinese cabbage productivity and soil properties., | 미소장 |
| 18 | (2005b) Effect of oyster shell meal on improving soil microbiological activity. , | 미소장 |
| 19 | (2002) Sajeong soil science, Hyangmoon press | 미소장 |
| 20 | (2000) Comparison of the feasibility of three extraction procedures for trace metal partitioning in sediments from south-west Spain. , | 미소장 |
| 21 | (2004) Soil pollution by a pyrite mine spill in spain evolution in time. , | 미소장 |
| 22 | (2004) Interactions of metal ions with chitosan based sorbents, | 미소장 |
| 23 | (1999) Recommendation standard of fertilization for crops. , RDA | 미소장 |
| 24 | (2002) Determination of Cd, Cu, Pb and Zn in environmental samples: microwave-assisted total digestion versus aqua regia and nitric acid extraction, | 미소장 |
| 25 | (2003) Use of sequential extraction to assess metal partitioning in soils. , | 미소장 |
| 26 | (1985) Soil Chemistry, Wiley Interscience | 미소장 |
| 27 | (1994) Environmental chemistry of soils. Oxford University Press, | 미소장 |
| 28 | (2003) Immobilization and phytoavailability of cadmium in variable charge soils. I.Effect of phosphate addition. , | 미소장 |
| 29 | Immobilization and phytoavailability of cadmium in variable charge soils. I. Effect of phosphate addition  |
미소장 |
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