【摘要】 本文阐述了山东省打渔张灌区暗管排水试验的概况.根据1978～1979年试验资料分析论述了暗管排水的流量、暗管排水地段水盐平衡状况、排蒸比、潜水位的下降规律以及土壤改良效果等.更多还原

【Abstract】 This paper describes the experiments of the underdrainage in Dayuzhang irrigation district at the coastal area of Shandong Province. On the basis of the experimental data analysis from the year 1978 to 1979, the subjects such as the flow of underdrainage, the balance of the water and salt in underdrainage, the ratio of drainage and evapotranspiration, the regular patterns of the ground water draindown and the effects of reclamation of soilare discussed and studied.更多还原