磁化水灌溉对盐渍化土壤生化性质的影响  

Effects of Irrigation With Magnetized Salty Water on Biochemical Properties of Salty Soil

作　　者：王渌 郭建曜 刘秀梅[1] 马风云[1] 朱红[1] 马雪松[1] 王文波[1] 

机构地区：[1]山东农业大学林学院/山东省高校森林培育重点实验室,山东泰安271018

出　　处：《核农学报》2018年第1期150-156,共7页Journal of Nuclear Agricultural Sciences

基　　金：国家引进国际先进林业科学技术(948)(2011-4-60);山东省农业重大应用技术创新计划项目(鲁财农指[2016]36号)

摘　　要：为了探究磁化水灌溉对盐渍化土壤生化性质的影响,以黄河三角洲冬枣园的盐渍化土壤为研究对象,对土壤的盐分含量、交换性盐基、养分含量和土壤酶活性进行了研究。结果表明,在3个不同土层深度下,与淡水相比,磁化淡水灌溉的土壤含盐量分别显著降低了17.3%、19.8%和10.5%(P<0.05);在0~20和20~40 cm土层中,与地下浅表层微咸水相比,磁化地下浅表层微咸水灌溉的土壤含盐量分别显著降低5.7%和8.8%(P<0.05)。在3个不同土层深度中,磁化地下浅表层微咸水灌溉与未磁化灌溉相比分别显著降低了土壤中全Na的含量(P<0.05)。磁化水灌溉显著增加了交换性K和Ca的含量,而交换性Na含量显著降低(P<0.05)。不同的土壤深度下,磁化水灌溉可显著提高土壤中P、Ca和Mg的含量(P<0.05)。与未磁化相比,磁化水灌溉的土壤蔗糖酶活性提高11.5%~15.2%,且差异显著(P<0.05)。与未磁化相比,磁化淡水灌溉的脲酶活性提高了10.6%,磁化地下浅表层微咸水的磷酸酶和过氧化氢酶活性提高了10.0%和7.0%,且差异显著(P<0.05)。由此可知,磁化水灌溉能有效促进沾化冬枣园盐渍化土壤脱盐、维持土壤离子平衡、促进土壤养分有效性及提高土壤酶活性。本研究结果为磁化水灌溉技术在冬枣产业区的广泛应用提供了依据。Taking an orchard of Ziziphus jujuba Mill. Dongzao in the Yellow River Delta as a research subject,it explored the influence of irrigation with magnetized water on soil biochemical properties of salinized soil by analyzing salinity,exchangeable base,nutrient content and enzyme activities of soil. The results showed that,in 3 different depth of soil layers,soil salinity in the field irrigated with magnetized fresh water significantly reduced by 17. 3%,19. 8% and 10. 5%,respectively compared with the fresh water irrigation treatment（ P〈0. 05）; in soil layers of 0 ~ 20 and 20 ~ 40 cm,the soil salinity in the field irrigated with magnetized brackish water under shallow layers of land significantly reduced by 5. 7% and 8. 8%,respectively,compared with the brackish water under shallow layers of land irrigation（ P〈0. 05）. In 3 different depth of soil layers,irrigated with magnetized brackish water under shallow layers of land significantly reduced the soil Nacontent compared with its control（ P〈0. 05）. Irrigation with magnetized water increased the exchangeable K and Ca in soil and reduced the Na significantly compared with irrigation with unmagnetized water（ P〈0. 05）. In the different soil layers,irrigation with magnetized water significantly increased P,Ca and Mg in soil and reduced the Nacontent compared with irrigation with un-magnetized water treatments（ P〈0. 05）.Irrigation with magnetized water increased the soil sucrase activities 11. 5% to 15. 2%. Significant difference was observed compared with the control（ P〈0. 05）. Irrigation with magnetized fresh water increased the soil urease activities by 10. 6%. Irrigation with magnetized brackish water under shallow layers of land obviously increased the soil phosphatase and catalase activities by 10. 0% and 7. 0%,respectively（ P〈0. 05） compared with their controls. In short,the experiment proved that irrigation with magnetized water could effectively promote desalination,preserve soil ion balance and increase soil enzyme activ

关 键 词：土壤盐渍化 磁化水灌溉 土壤生化性质 土壤脱盐 

分 类 号：S156.41[农业科学—土壤学]