<紀要論文>
Actual Water Consumption and Water Management in Pddy Field : Referring to the Thailand Gravity Irrigation District (2)

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概要 In the Thailand gravity irrigation district, we surveyed consumptive waer use and water management actual conditioni of the paddy field. It is anticipated that the water management of farm land consol...idation district and non farm land concolidation sidtrict differs. Therefore, the survey was carried out in both districts. To begin with, 20 plots was respectively selected in each district, and stake for the water level measurement was installed. The water level was measured in a day one time fixed time. Consumptive water use in a day is obtained as a water level difference in continued two days without inflow and runoff. As a result of the measurement, it was 11mm/d regardledd of the degree of farm land consolidation throughout one year. And, operating ponding depth was about 80 mm, and the highest ponding depth was anout 150 mm. These results become the data which is very precious for future water demand calculation.続きを見る

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登録日 2009.04.22
更新日 2017.02.07