陕西卤泊滩盐碱地“改排为蓄”后盐碱指标试验观测

Experimental observation of saline alkali of soil in saline land after changing drainage to impoundment in Lubotan of Shaanxi Province

针对陕西卤泊滩重度盐碱地治理的具体问题,在近10年期间,尝试了"改排为蓄"的治理新模式。期间,进行了大量的试验观测和重点田间试验。根据观测资料,分析了卤泊滩不同地块、不同深度、在不同时期土壤水分、盐分、pH值以及离子含量的变化情况。按照新的治理模式实践,使土壤中的盐分、pH值及离子含量得到有效地降低,有机质含量增加,土壤质量明显改善,结果表明"改排为蓄"模式下,卤泊滩盐碱地治理的效果显著。

Aiming at the specific issues of severe saline land in Lubotan of Shaanxi Province, in the last 10 years, the treatment model of changing drainage to impoundment has been applied with a lot of experimental observation and the key field experiment. According to the observation data, the changes of the moistures content, salinity, ion content of the soil, as well as pH value had been analyzed in different depth of different fields at different times. After treatment, the salinity, pH value and ion content of soil were decreased, and soil organic matter was increased Therefore soil quality was improved remarkably. The results showed that the effect of the treatment of saline land was obvious in Lubotan under ＂changing drainage to impoundment＂ treatment model.