本文選題：砂地滴灌 + 點(diǎn)源入滲��； 參考：《蘭州理工大學(xué)學(xué)報(bào)》2017年01期

【摘要】：以壓砂地不同種植年限為影響因子,裸地為參照組(CK),采用室內(nèi)土槽模擬試驗(yàn)研究種植年限對(duì)壓砂土壤點(diǎn)源入滲規(guī)律的影響.結(jié)果表明:壓砂土壤垂直和水平累積入滲距離都符合Kostiakov入滲模型.累計(jì)入滲距離初期CK、中砂地、老砂地垂直入滲距離小于水平入滲距離,新砂地垂直入滲距離大于水平入滲距離;入滲中后期隨著時(shí)間的增加新砂地累積入滲規(guī)律不變,中砂地、老砂地和CK的垂直入滲距離依次超過其水平入滲距離.入滲時(shí)間一定時(shí)垂直入滲深度新壓砂地中壓砂地老壓砂地CK;新壓砂地水平入滲距離明顯小于其他壓砂土壤,中、老壓砂地和CK水平入滲距離無明顯差異.入滲初期垂直入滲速率新壓砂地中壓砂地老壓砂地CK,水平入滲速率老壓砂地中壓砂地CK新壓砂地;入滲中后期垂直和水平入滲速率減緩并趨于穩(wěn)定.
[Abstract]:The effect of planting time on point source infiltration of sand compaction soil was studied by indoor soil trough simulation test with different planting years of sand compaction land as influence factor and naked land as reference group. The results show that the vertical and horizontal cumulative infiltration distance of sand compaction soil accords with Kostiakov infiltration model. Accumulative infiltration distance CK. vertical infiltration distance of middle sand land and old sand land is smaller than horizontal infiltration distance, vertical infiltration distance of new sand is larger than horizontal infiltration distance. The vertical infiltration distance between the old sand land and CK is higher than its horizontal infiltration distance. When the infiltration time is fixed, the depth of vertical infiltration is constant, and the horizontal infiltration distance of the new sand compaction soil is obviously smaller than that of other sand compaction soils, and there is no obvious difference between the old sand compaction land and CK horizontal infiltration distance. In the early stage of infiltration, the vertical infiltration rate of the new sand pressure ground is the same as that of the middle pressure sand field, and the horizontal infiltration rate is slow down and tends to be stable in the middle and late stage of infiltration.
【作者單位】： 蘭州理工大學(xué)能源與動(dòng)力工程學(xué)院;
【基金】：國家自然科學(xué)基金(51269008,51409137)
【分類號(hào)】：S275.6;S152.7

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