새만금 간척지에서 밭토양 피복방법에 따른 염분 이동 특성 변화

다국어 초록 (Multilingual Abstract)

Soil salinity is the most critical problem at reclaimed tidal saline soil in Korea. The objective of this study was carried out investigate the salt movement in upland soils at Gyehwa-do region in Saemangeum reclaimed land on the south Korea coasts. The experiment was conducted 5% sloped polt (3.0 m × 10.0 m) with 14 treatments and it were separated by low salinity division (LSD) and high salinity division (HSD) install. The cation content in ground water increased during time course, but in the case of land surface water the content was variable, and K+was lower than that of Na and Mg. At the LSD under rainproof condition, the salinity was directly proportional to soil water content, but at the HSD the tendency was no reversed. In condition of rainproof, the amount of soil salinity was higher at the HSD than at the LSD. Positive correlation was obtained between the soil water content and available phosphorous content at the rainfall division, but there was no significance at the surface soil of the rainproof division. Sodium adsorption ratio (SAR) and anion (Cl−, SO4 −) contents in soil were repressed in the order of vinyl-mulching > Rice straw-mulching > control plot. Our results indicate that soluble salt control is critical at reclaimed tidal saline soil and the results can provide some useful information for deciding management plans to reduce salt damage for stable crop production and diverse utilization or cultivation could be one of the management options to alleviate salt damages at reclaimed tidal saline soil in Korea.

목차 (Table of Contents)

• 재료 및 방법
• 조사대상지
• 토양 염농도 측정 및 토양 시료 분석
• 통계분석
• 결과 및 고찰
• 토양 화학성
• 지하수의 염농도 변화
• 토양수분 함량별 염농도 변화
• 피복 재료별 토양의 염농도 변이
• 적 요
• REFERENCES

참고문헌 (Reference)

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