引黄灌区沉沙高地还耕模式及覆淤土层研究

简介黄河下游山东引黄灌区沉沙池运行的基本历程,总结出适合黄河下游灌区沉沙池高地覆淤还耕的新模式,并分析了产生该模式的特定自然、社会、经济条件.同时,设计了5种覆淤土层结构、10种种植处理方式,经过4年规范的作物种植试验,分别获得其产量、产值,之后采用多因素多层次模糊综合评判方法,从中优选出3种覆淤土层结构.

Study on returning of desilting highland to cropland in Yellow River water diversion irrigation area and reasonable soil structures for silt covering

An introduction was given to the operation process of desilting basins in the Yellow River water diversion irrigation area on the lower Yellow River of Shandong Province. A new mode suitable for the lower Yellow River for returning the desilting highland to cropland was proposed, and the natural, social, and economic conditions for the generation of the new model were analyzed. In this paper, 5 kinds of soil layers are designed for silt covering and 10 kinds of cultivation treatment are implemented. After a 4-year normalized crop planting test, the outputs of crops and their values are obtained. From a multi-factorial and multi-hierarchical comprehensive fuzzy judgment of the test results, 3 kinds of soil layers for silt covering are selected.