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微咸水膜孔溝灌土壤水鹽分布與灌水質(zhì)量分析
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公益性行業(yè)（農(nóng)業(yè)）科研專項經(jīng)費(fèi)資助項目（200903001）和高等學(xué)校學(xué)科創(chuàng)新引智計劃資助項目（B12032）


Analysis of Soil Water-salt Distribution and Irrigation Performance under Brackish Water Film Hole Furrow Irrigation
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    摘要:

    通過田間試驗,，研究了微咸水膜孔溝灌下流量和開孔率對土壤水鹽分布和灌水質(zhì)量的影響,。結(jié)果表明，田面水流推進(jìn)時間和距離符合冪函數(shù)分布,，流量和開孔率對水流推進(jìn)速度影響較大,；膜孔溝灌通過降低水分蒸發(fā),，抑制鹽分表聚，有效調(diào)節(jié)了土壤水鹽分布,，總體上,，對0~40cm土層鹽分具有明顯淋洗作用；灌水效率Ea隨開孔率的增大而增大,，隨流量的變化不明顯,；灌水均勻度Ed隨流量的增大而減小，隨開孔率的增大而減??；脫鹽效率Es隨開孔率的增大先增大后減小，隨流量的變化不明顯,；通過方差分析對灌水質(zhì)量影響因素進(jìn)行排序,，初步得出試驗區(qū)適宜的膜孔溝灌優(yōu)化灌水技術(shù)組合。

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    Effects of flow rate and opening rate under brackish water film hole furrow irrigation on soil water salt distribution and irrigation performance were studied through a field experiment. Results show that surface water flow advance time and distance conforms to a power function distribution, water advance speed is effected by flow rate and opening rate. Film hole furrow irrigation can effectively regulate soil water salt distribution of 0~40cm by reducing evaporation, inhibiting salt to the surface, soil salt leaching is significant. Ea increases with the opening rate, with the changes of flow rate is not obvious. Ed decreases with the increase of flow rate and the opening rate. With the increase of opening rate, Es increases first then decreases, with the change of flow rate is not obvious. Through variance analysis influence factors of irrigation performance sorting, optimization technology combinations for experimental zone was preliminary obtained.

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張展羽,馮根祥,馬海燕,陳 陽,司 涵.微咸水膜孔溝灌土壤水鹽分布與灌水質(zhì)量分析[J].農(nóng)業(yè)機(jī)械學(xué)報,2013,44(11):112-116. Zhang Zhanyu, Feng Genxiang, Ma Haiyan, Chen Yang, Si Han. Analysis of Soil Water-salt Distribution and Irrigation Performance under Brackish Water Film Hole Furrow Irrigation[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(11):112-116.

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  • 在線發(fā)布日期: 2013-11-07
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