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针对黄河三角洲粉砂壤土盐碱地特点,以山东省小开河引黄灌区为研究对象,对研究区暗管适宜埋深范围及考虑蒸发影响下的暗管铺设适宜间距进行了探讨,并考虑工程建设、材料及不同埋深及间距组合的成本差异,以单位面积投资最小为目标建立黄河三角洲盐碱地工程治理暗管布设系统优化模型,对暗管埋深与间距的最佳组合进行了研究。结果表明,暗管埋深2.4m、间距137.0m为最优方案。结果可为综合考虑经济性、治碱效果及技术操作性的黄河三角洲盐碱地综合治理适宜工程布置形式提供理论依据。
In view of the characteristics of saline-alkali soil of silt loamy soil in the Yellow River Delta, taking the Xiaokai River irrigation area of Shandong Province as the research object, this paper discusses the appropriate depth of the underground pipe in the study area and the suitable spacing of the underground pipe under the influence of evaporation. Considering the project construction, Material and the cost difference between different depths and spacing combinations, the optimization model of underground pipe layout system of saline-alkali land project management in the Yellow River Delta was set up with the goal of minimizing the investment per unit area, and the optimal combination of buried depth and spacing was studied. The results show that the buried depth of 2.4m tube, 137.0m spacing for the optimal program. The results can provide a theoretical basis for the appropriate project layout for comprehensive management of saline-alkali land in the Yellow River Delta considering economy, alkali-control effect and technical operation.