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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.11
- 수록면
- 415 - 430 (16page)
이용수
초록· 키워드
오류제보하기
Soil salinization driven by groundwater distribution in the reclaimed land is one of the major limiting factors for crop cultivation and soil management. In this study, the effects of two different water table depth (G1 site with intermediate and deep vs. G2 site with shallow depth) of groundwater (on soil salinity, water and crop productivity were investigated. The rainfall event greatly impacted the groundwater recharging rate and salt leaching. The falling groundwatr table depth from 30 to 80 cm together with higher evaporation at G2 site caused soil salinization in the rhizosphere, whereas increases in soil salinity at G1 site was negligible. Overall, soil water content at G2 site was higher than that at G1 site. The positive correlation of soil salinity with soil water content (r² = 0.69) and negative with groundwater table (r² = 0.89) indicated hydraulic connection between groundwater table and soil surface. The deeply falling groudwater table with negative water balance (Evaporation ＞ Rainfall) induced drought-combined salt stress to crop. Soybean was much more susceptible to soil salinty stress and excess-moisture injury than maize, suggesting that the crop selection and practices to reduce crop vulnerability to abiotic stresses(salt and water) should be considered for sustainable and stable agriculture in reclaimed land. Our results highlight that groundwater table depth would play a crucial role in founding cropland suitability and the optimum groundwater table to avoid salinization and excessve wetting might be 1.5 - 2.0 m.
목차
ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (37)
참고문헌 신청
An, L.S., B.H. Zhou, Q.S. Zhao, and L. Zhu. 2015. Spatial Variability of Soil chloride content and its driving factors in the Huanghe River Delta. Scientia Georg. Sinica. 35(3):358-364.
Asad, S.Q., A. Waqas, and A.F. Ahmad. 2013. Optimum Groundwater table depth and Irrigation Schedules for Controlling Soil Salinity in Central Iraq. Irrg. and Drain. 62:414-424.
Ashraf, M., Rahmatullah, T. Maqsood, and M.A. Tahir. 2006. Contribution of Shallow water table to salinity/sodicity Development under Fallow and Cropped conditions. Pak. J. Agri. Sci. 43:7-12.
Ayar, J.E., E.W. Christen, R.W. Soppe, and W.S. Meyer. 2006. The resource potential of in-situ shallow ground water use in irrigated agriculture: a review. Irrigation Sci. 24:147-160.
Bae, H.S., S.H. Lee, J.B. Hwang, H.-K. Park, G.H. Lee, G.B. Lee, K.S. Lee, D.S. Lee, B.D. Hong, J.H. Lee, and D.Y. Chung. 2016. Drainage Effect on Desalinization and Crop Growth on a Poorly Drained Soil in the Reclaimed Tidal Flat Land. J. Korean Soc. Int. Agric. 28(4):512-519.
Asad, S.Q., A. Waqas, and A.F. Ahmad. 2013. Optimum Groundwater table depth and Irrigation Schedules for Controlling Soil Salinity in Central Iraq. Irrg. and Drain. 62:414-424.
Ashraf, M., Rahmatullah, T. Maqsood, and M.A. Tahir. 2006. Contribution of Shallow water table to salinity/sodicity Development under Fallow and Cropped conditions. Pak. J. Agri. Sci. 43:7-12.
Ayar, J.E., E.W. Christen, R.W. Soppe, and W.S. Meyer. 2006. The resource potential of in-situ shallow ground water use in irrigated agriculture: a review. Irrigation Sci. 24:147-160.
Bae, H.S., S.H. Lee, J.B. Hwang, H.-K. Park, G.H. Lee, G.B. Lee, K.S. Lee, D.S. Lee, B.D. Hong, J.H. Lee, and D.Y. Chung. 2016. Drainage Effect on Desalinization and Crop Growth on a Poorly Drained Soil in the Reclaimed Tidal Flat Land. J. Korean Soc. Int. Agric. 28(4):512-519.
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