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[1]LI Juan,HAN Jichang,ZHANG Yang,et al.Move Characteristics of Soil Salinity in Saline-Alkali Land Under Impounding and Draining Conditions[J].Research of Soil and Water Conservation,2015,22(03):116-120.

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Move Characteristics of Soil Salinity in Saline-Alkali Land Under Impounding and Draining Conditions

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 03 Page number: 116-120 Column: Public date: 2015-06-28

Title:: Move Characteristics of Soil Salinity in Saline-Alkali Land Under Impounding and Draining Conditions

Author(s):: LI Juan^1,2,3, HAN Jichang^1,3, ZHANG Yang^1,3, LI Xiaoming¹, ZHANG Weihua^1,3, Dong Qiguang^1,3, LEI Na^1,3; 1. Shaanxi Province Land Engineering Construction Group, Xi’an 710075, China;
2. College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100, China;
3. Key Laboratory of Degraded and Unused Land Consolidation Engineering, Ministry of Land and Resources of China, Xi’an 710075, China

Keywords:: saline-alkali land; storage condition; drainage saline land; soil salinity; salt ions

CLC:: S275.6

DOI:: -

Abstract:: To test the variation and move of soil salinity in saline-alkali land under impounding and draining treatments, an experimental model was conducted in Fuping County, Shaanxi Province, 2009. The variation of soil salinity in 0—160 cm soil depth under the two treatments was observed. Results showed that the average soil water content under impounding treatment was 4.47% higher than that under draining treatment with the same water yield, which means that the impounding treatment can help improve soil moisture to support the crop growth. The profile distributions of soil soluble solids (TDS), anion (Cl^-, HCO₃^-, SO₄^2-) and cation (Ca²⁺, Na⁺, K⁺) contents and the variation of soil pH were also measured. Principal component analysis(PCA) was used to examine the relationship between the soil salinity and its ions. The results showed that the impounding treatment could significantly decrease the surface salinity of soil and accelerate the desalination of topsoil, and finally, the soil quality was improved significantly, demonstrating that the impounding treatment had the remarkable effect on soil salinity management.

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