The systematization of upland irrigation planning with the consideration the actual situation of water use

本研究的目的是调查系统的高地灌溉规划在田间水平和农场水平。为了实现这一目标，对作为灌溉原因的气象条件和蒸散量进行了测定，并调查了高地灌溉区设计需水量与实际需水量差异的原因，利用东北灌溉工程区1993年以来的实测资料进行了农田调查。分析了各养殖池塘的小时用水量和日用水量。结果表明，在长晴天、干旱日，农田用水量增加，小时用水高峰与设计用水量基本一致，池塘排水高峰出现在早晚两个时段。通过田间调查，微气象条件、土壤含水量、 ...更多信息 在鸟取县大荣町和鸟取大学旱地研究中心的沙丘地测定了温室内外的灌溉量，分析了土壤水分和作物生长条件对温室内辐射平衡、热量平衡和蒸散量的影响。同时，对稻田微气象条件进行了观测，研究了彭曼潜在蒸散量与蒸散量的关系，并利用实测资料对水分运动进行了模拟。此外，还开始开发水流模拟代码。此外，利用AMeDAS气象资料和气象厅的气象资料，通过Penman公式计算了潜在蒸散量，并绘制了其分布图。在此基础上，分析了规划与实际差异的原因，探讨了高地灌溉规划的理想方法，部分成果已发表。今后将发表更多的论文。少

The objective of this study was to investigate the system for upland irrigation planning at the field level and the farm level. To achieve it, the meteorological conditions and the evapotranspiration which were the reason of irrigation was measured, and the cause for the difference between the design water requirement and the actual situation of water requirement in a upland irrigation block was investigated.The investigation at farm level was conducted with using the data having been measured from 1993 in the Tohaku Irrigation Project district. The hourly and daily water use at every farm pond were analyzed. As a result, the investigations revealed that the amount of water use increased during long, clear, dry days, and the peak of hourly water use was almost the same amount as the design water requirement, and the peak discharge from the farm ponds was in the morning and evening.As the investigation of field level, the micrometeorological conditions, the soil moisture content and the … More irrigation amount were measured within and outside the greenhouses at Daiei Town area, Tottori Prefecture, and at a sand dune field at Arid Land Research Center, Tottori University, It was analyzed how the radiation and heat balance and the evapotranspiration were changed by soil water moisture content and the growth conditioned of crops. Also, the micrometeorological conditions were measured in a paddy field, and the relation between Penman's potential evapotranspirations and evapotranspirations was investigated.The water movements was simulated with using the data measured in fields. Also, the development of simulation code for water movements was started. Furthermore, the potential evapotranspiration by Penman's equation was calculated by using the AMeDAS meteorological data and the meteorological materials at the Meteorological Agency, and the distribution map of that was drawn. On the basis of the measurements and simulation results mentioned above, the reasons of the difference between the planning and the actual situation were examined, and the ideal method for the upland irrigation planning were investigated.A part of these results have already been published. More papers will be published in the future. Less