지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.10
- 수록면
- 555 - 563 (9page)
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Uniformity and leveled distributions of soil chemicals across paddy fields are critical to manage optimal crop yields, reduce environmental risks and efficiently use water in rice cultivation. In this study, an investigation of spatial distributions on soil chemical properties was conducted to evaluate the effect of land leveling on mitigation of soil chemical property heterogeneity from a remodeled paddy field. The spatial variabilities of chemical properties were analyzed by geostatistical analyses; semivariograms and kriged simulations. The soil samples were taken from a 1 ha paddy field before and after land leveling with sufficient water. The study site was located at Bon-ri site of Dalseong and river sediments were dredged from Nakdong river basins. The sediments were buried into the paddy field after 50 cm of top soils at the paddy field were removed. The top soils were recovered after the sediments were piled up. In order to obtain the most accurate spatial field information, the soil samples were taken at every 5 m by 5 m grid point and total number of samples was 100 before and after land leveling with sufficient water. Soil pH increased from 6.59 to 6.85. Geostatistical analyses showed that chemical distributions had a high spatial dependence within a paddy field. The parameters of semivariogram analysis showed similar trends across the properties except pH comparing results from before and after land leveling. These properties had smaller “sill” values and greater “range” values after land leveling than ones from before land leveling. These results can be interpreted as land leveling induced more homogeneous distributions of soil chemical properties. The homogeneous distributions were confirmed by kriged simulations and distribution maps. As a conclusion, land leveling with sufficient water may induce better managements of fertilizer and water use in rice cultivation at disturbed paddy fields.
목차
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (26)
참고문헌 신청
[학술지(정기간행물)] - Brocca, L. / 2007 / Soil moisture spatial variability in experimental areas of central Italy / J. Hydrol 333 : 356 ~ 373
[학술지(정기간행물)] - Brooker, P.I. / 1986 / A parametric study of robustness of kriging variance as a function of range and relative nugget effect for a spherical semivariogram / Math. Geol 18 (5) : 477 ~ 488
[학술지(정기간행물)] - Brye, K.R. / 2004 / Short-term effects of land leveling on soil chemical properties and their relationships with microbial biomass / Soil Sci. Soc. Am. J 68 : 924 ~ 934
[학술지(정기간행물)] - Cabangon, R. / 2000 / Management of cracked soils for water saving during land preparation for rice cultivation / Soil Tillage Res 56 (1-2) : 105 ~ 116
[학술지(정기간행물)] - 전현정 / 2015 / Comparison of Soil Pore Properties between Anthropogenic and Natural Paddy Field Soils From Computed Tomographic Images / 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer) 48 (5) : 351 ~ 360
[학술지(정기간행물)] - Brooker, P.I. / 1986 / A parametric study of robustness of kriging variance as a function of range and relative nugget effect for a spherical semivariogram / Math. Geol 18 (5) : 477 ~ 488
[학술지(정기간행물)] - Brye, K.R. / 2004 / Short-term effects of land leveling on soil chemical properties and their relationships with microbial biomass / Soil Sci. Soc. Am. J 68 : 924 ~ 934
[학술지(정기간행물)] - Cabangon, R. / 2000 / Management of cracked soils for water saving during land preparation for rice cultivation / Soil Tillage Res 56 (1-2) : 105 ~ 116
[학술지(정기간행물)] - 전현정 / 2015 / Comparison of Soil Pore Properties between Anthropogenic and Natural Paddy Field Soils From Computed Tomographic Images / 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer) 48 (5) : 351 ~ 360
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UCI(KEPA) : I410-ECN-0101-2017-523-001638076