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[1]SUN Kaining,WANG Kean,YANG Ning.Effects of Salt Isolating Methods on Spatial Distribution of Major Saline Ions and Enzyme Activities in Greenhouse Saline Soil[J].Research of Soil and Water Conservation,2018,25(03):57-61.

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Effects of Salt Isolating Methods on Spatial Distribution of Major Saline Ions and Enzyme Activities in Greenhouse Saline Soil

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 25 Number of periods: 2018 03 Page number: 57-61 Column: Public date: 2018-04-10

Title:: Effects of Salt Isolating Methods on Spatial Distribution of Major Saline Ions and Enzyme Activities in Greenhouse Saline Soil

Author(s):: SUN Kaining, WANG Kean, YANG Ning; Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences/Shandong Branch of National Improvement Center for Vegetables/Shandong Province Key Laboratory for Biology of Greenhouse Vegetables, Jinan 250100, China

Keywords:: greenhouse soil; salinization; salinity isolation layer; soil enzyme

CLC:: S156.4

DOI:: -

Abstract:: According to the present situation of increase of soil salinization in greenhouse, we examined the effect of different saline partition mode on salinity control by using soil column simulation with no salinity as the control and 3 layer types:gravel layer (T₁), compound organic material layer (T₂), gravel composite organic material layer (T₃). The results showed that the saline ion contents decreased gradually with the increase of soil depth; the total contents of 7 major ions (Na⁺, NH₄⁺, K⁺, Ca²⁺, Cl^-,NO₃^-, SO₄^2-) of T₃ decreased by 13.5%, 0.61% and 27.0% in 0-10 cm, 10-20 cm and 20-30 cm soil depths, respectively, while the effects of T₁ and T₂ were not obvious. T₃ increased activities of urease, sucrase, phosphatase by 7.30%, 4.70% and 3.58%, respectively, and decreased catalase activity by 8.53% in the 0-30 cm soil layer, while T₁ showed the opposite trend. It showed that T₃ could better restrain the accumulation of saline ions in the topsoil and improve soil enzyme activities, which has a certain effect on improving the quality of saline soil.

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