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[1]ZHANG Lu,HAN Jichang,MA Zenghui,et al.Study on Dynamic Change of Ion Contents of Saline-Alkali Soil During Different Reed Growth Stages[J].Research of Soil and Water Conservation,2016,23(04):38-42.

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Study on Dynamic Change of Ion Contents of Saline-Alkali Soil During Different Reed Growth Stages

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 23 Number of periods: 2016 04 Page number: 38-42 Column: Public date: 2016-04-28

Title:: Study on Dynamic Change of Ion Contents of Saline-Alkali Soil During Different Reed Growth Stages

Author(s):: ZHANG Lu, HAN Jichang, MA Zenghui, CHEN Tianqing, SHI Chendi, WEI Jing; Shaanxi Land Construction Group, Shaanxi LCG Land Project Technology Institute, Key Laboratory of Degraded and Unused Land Consolidation Engineering the Ministry of Land and Resources of China, Xi’an 710075, China

Keywords:: reed; salinization; potential of hydrogen; electrical conductivity; base ion

CLC:: S151.9⁺3;S156.4⁺9

DOI:: -

Abstract:: It provides a reference for the application of biological measures to control saline soils to study the dynamic change of ion contents of saline-alkali soil during different reed growth stages. Using the saline-alkali soil in Dingbian County, Shaanxi Province to pack the cement column device [0.8 m(φ)×0.98 m(h), 20 numbers], and planting reeds in 10 columns in a row, not planting any plants in 10 columns in another row, using soil auger to collect 0—20 cm soil sample at each reed growth stage in every column, then saline-alkali soil indexes of potential of hydrogen, electrical conductivity, Ca²⁺,Mg²⁺,K⁺,Na⁺,CO₃^2-,HCO₃^-,Cl^-,SO₄^2- content were measured during reed seedling, leafing, flowering, maturity and withering period, respecitvely. The results showed that reed could make that the pH lower 0.65 units, the electrical conductivity overall declined 756.55 μS/cm, Ca²⁺ content decreased 138.70 mg/kg, SO₄^2- content decreased 115.35 mg/kg, Cl^- content decreased 57.76 mg/kg, HCO₃^- content decreased 57.76 mg/kg, Na⁺ content decreased 55.58 mg/kg, CO₃^2- content decreased 31.66 mg/kg, Mg²⁺ content decreased 26.93 mg/kg, K⁺ content decreased 12.65 mg/kg during throughout growing stage. The potential of hydrogen, electrical conductivity, Ca²⁺,Mg²⁺,K⁺,Na⁺,CO₃^2-,HCO₃^-,Cl^-,SO₄^2- contents of saline-alkali soil with planting reeds decreased more than not planting reeds. The reed capability to enrich salinity might exist, to a certain extent, and can improve the situation of soil salinization in Dingbian County, Shaanxi Province.

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