%0 Journal Article %T 磁化水灌溉条件下黄河三角洲刺槐林地土壤盐分时空分布特征及变化规律 %T Spatial and Temporal Distribution Characteristics and Variation Laws of Soil Salinity at Robinia Pseudoacacia Forest Land in Yellow River Delta Irrigation with Magnetized Water %A 阎腾飞 %A 刘秀梅 %A 刘合满 %A 王华田 %A 洪弦 %A 贺闯 %A 王壮壮 %A Yan Tengfei %A Liu Xiumei %A Liu Heman %A Wang Huatian %A Hong Xuan %A He Chuang %A Wang Zhuangzhuang %J 水土保持通报 %J 水土保持通报英文版 %@ 1000-288X %V 39 %N 5 %D 2019 %P 135-142 %K 磁化水;滨海盐碱地;黄河三角洲;刺槐林地;土壤盐分;时空分布 %K magnetized water;coastal saline-alkali land;the Yellow River delta;Robinia pseudoacacia forest land;soil salinity;spatial and temporal distribution %X [目的] 探明磁化水灌溉条件下土壤盐分含量时空分布特征及变化规律,为滨海盐碱地磁化水灌溉技术提供理论依据。[方法] 以黄河三角洲东营市河口区新营造刺槐人工林地为研究对象,分析了淡水灌溉(FW)、磁化淡水灌溉(MFW)、地下浅表层微咸水灌溉(GW)和磁化地下浅表层微咸水灌溉(MGW)4种措施下土壤盐分含量的时空分布特征及变化规律。[结果] 2种磁化处理灌溉方式均能降低滨海盐碱地土壤盐分含量;不同灌溉处理的土壤盐分含量均值皆表现出:GW > CK > FW > MGW > MFW,土壤盐分含量随土层深度增加而降低。[结论] ①磁化水灌溉能够降低土壤盐分表聚,尤其在春、秋季适时采用磁化水灌溉,能够抑制土壤返盐,在20-40 cm土层效果更明显一些。②通过磁化地下浅表层微咸水进行适度灌溉,可以为该地区节约用水资源,有效地促进盐碱地土壤脱盐。 %X [Objective] The temporal and spatial distribution characteristics and variation of soil salinity irrigated with magnetized water was explored in order to provide a theoretical basis for the magnetized water irrigation technology of coastal saline-alkali soil.[Methods] The coastal saline-alkali land of a Robinia pseudoacacia plantation in Dongying City was used as the research site to analyze the spatiotemporal distribution and evolution of soil salinity under four measures of freshwater irrigation (FW), magnetized freshwater irrigation (MFW), subsurface shallow brackish water irrigation (GW), and magnetized subsurface shallow brackish water irrigation (MGW).[Results] The two types of magnetized irrigation treatments (MFW and MGW) reduced the soil salinity in the coastal saline-alkali soil. The average salt content of the different irrigation treatments in the different soil layers followed the order:GW > CK(no irrigation) > FW > MGW > MFW and the soil salinity in the different soil layers decreased with an increase of soil depth.[Conclusion] ① Magnetization treatment significantly reduced the soil salt accumulation in the surface soil layer. Especially in the spring and autumn, the use of magnetized water irrigation can inhibit the return of salt to the soil, with the effect being more obvious in the 20-40 cm soil layer. ② Moderate irrigation by magnetizing subsurface shallow brackish water could save water resources for the region and effectively promote soil desalination in saline-alkali soils. %R 10.13961/j.cnki.stbctb.2019.05.019 %U http://stbctb.alljournal.com.cn/stbctb/home %1 JIS Version 3.0.0