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表面活性劑是否對(duì)斥水性土壤的潤(rùn)濕性有影響?——結(jié)論、致謝!

來(lái)源:上海謂載 瀏覽 1937 次 發(fā)布時(shí)間:2021-11-09

結(jié)論


不像人工創(chuàng)造的穩(wěn)定的驅(qū)蟲(chóng)表面或多孔 介質(zhì),拒水土壤表現(xiàn)出潤(rùn)濕動(dòng)力學(xué),由此 最初疏水的土壤隨著時(shí)間的推移變得親水 與水接觸時(shí)。 初始潤(rùn)濕動(dòng)力學(xué) 排斥土壤通常歸因于 固液界面能 (γSL),或液汽界面能 (γLV) 的降低,或兩者兼而有之。 γLV 的減少 建議是由于土壤表面溶解 活性有機(jī)化合物進(jìn)入與水接觸的水中 土壤。 在這項(xiàng)研究中,我們測(cè)試了土傳表面的影響 潤(rùn)濕動(dòng)力學(xué)的活性物質(zhì),并發(fā)現(xiàn),與廣為接受的范式相反,土壤釋放表面 活性化合物不會(huì)加速潤(rùn)濕過(guò)程。 因此很明顯,固體界面能的變化 表面(γSL 或 γSV),而不是液汽 表面 (γLV) 必須在驅(qū)動(dòng)不穩(wěn)定排斥性土壤的潤(rùn)濕動(dòng)力學(xué)方面起主導(dǎo)作用。


致謝


本研究由以色列農(nóng)業(yè)部資助 和農(nóng)村發(fā)展,資助號(hào) 821-0088-04。


參考


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Dekker, L.W., Oostindie, K. & Ritsema, C.J. 2005. Exponential increase of publications related to soil water repellency. Australian Journal of Soil Research, 43, 403–441.


Dinar, E., Taraniuk, I., Graber, E.R., Katsman, S., Moise, T., Anttila, T. et al. 2006. Cloud condensation nuclei properties of model and atmospheric HULIS. Atmospheric Chemistry and Physics, 6, 2465–2481.


Doerr, S.H., Shakesby, R.A. & Walsh, R.P.D. 2000. Soil water repellency: its causes, characteristics and hydro-geomorphological significance. Earth-Science Reviews, 51, 33–65.


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Ellerbrock, R.H., Gerke, H.H., Bachmann, J. & Goebel, M.O. 2005. Composition of organic matter fractions for explaining wettability of three forest soils. Soil Science Society of America Journal, 69, 57–66.


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表面活性劑是否對(duì)斥水性土壤的潤(rùn)濕性有影響?——概括、介紹

表面活性劑是否對(duì)斥水性土壤的潤(rùn)濕性有影響?——材料和方法

表面活性劑是否對(duì)斥水性土壤的潤(rùn)濕性有影響?——結(jié)果和討論

表面活性劑是否對(duì)斥水性土壤的潤(rùn)濕性有影響?——結(jié)論、致謝!

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