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为了研究唐山市滨海泥质盐碱地不同隔离措施台田水分和盐分动态,于2009年对不同隔离层措施的台田水分和盐分含量进行了分析和研究。结果表明,试验地台田水盐动态可分为积盐阶段、脱盐阶段和返盐阶段;土壤水分与盐分含量呈负线性相关关系,在4—10月份间,土壤盐分呈先降低后升高趋势,水分呈先升高后降低的趋势;由铺设隔离层的台田深层土壤电导率值和土壤水分明显低于对照台田可以得出,隔离层具有明显的阻盐和排水效果,其中,隔离层铺设方式为“双条一杠”型,铺设内容为炉渣的台田阻盐效果最佳,由于其成本较低,所以应大力推广使用。
In order to study the water and salt dynamics in Taitian under different isolation measures of coastal muddy saline land in Tangshan City, the water and salt content of the tableland in different isolation measures were analyzed and studied in 2009. The results showed that the water and salt dynamics in the field can be divided into salt accumulation stage, desalination stage and salt return stage. The soil moisture and salt content showed a negative linear correlation. During the period from April to October, soil salinity decreased firstly and then increased Trend and moisture content firstly increased and then decreased; the soil conductivity and soil moisture in deep field in Taitian where the isolation layer was laid were obviously lower than those in the control Taita, and the isolation layer had obvious salt resistance and drainage effects. Among them, The isolation layer laying method is “double one bar ” type, the laying of the slag is the best salt field effect, due to its lower cost, it should be vigorously promote the use of.