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標題: 土壤礫石含量及分布對飽和水力傳導度之影響
Effect of Gravel Content and Distribution on Soil Saturated Hydraulic Conductivity
作者: 陳克強
Chen, Ke-Chiang
關鍵字: Gravel
Saturated hydraulic conductivity
Red soil
出版社: 水土保持學系所
引用: 李昆性 (2004),桃園台地紅土入滲行為之探討,中原大學土木工程學研究所碩士論文。 林俐玲、董小萍 (1996),土壤物理學實習手冊,國立中興大學水土保持學系。 林俐玲 (1999),田間飽和水力傳導度量測方法之比較,中華水土保持學報 30(3):235-239。 林勇洲 (1998),飽和水力傳導度之測定及其對水土流失之影響,國立中興大學水土保持研究所碩士論文。 陳佩松 (1993),坡面表土飽和水力傳導度之推估,國立中興大學水土保持研究所碩士論文。 陳念軍 (1970),滲透現象及其影響因子的研究。水土保持學報 3:18-23。 陳震遠 (2001),大粒徑孔隙結構物內阻力特性之研究,國立中山大學海洋環境及工程學系研究所碩士論文。 黃志忠 (2004),未飽和紅土吸、脫附段抗剪強度行為之研究,國立中興大學土木工程學系碩士論文。 黃懿慈 (2005),礫石含量對土壤水分移動之影響,國立中興大學水土保持研究所碩士論文。 萬鑫森 (1968),土壤水分及其移動,水土保持學報1:19-25。 萬鑫森 譯 (1991),基礎土壤物理學,初版三印,國立編譯館主編,茂昌圖書有限公司發行。 蔡義誌 (2001),坡地單一土層與複合土層水力傳導度之研究,國立中興大學水土保持研究所碩士論文。 謝銘 (2002),中部地區坡地土壤水分流動之研究,國立中興大學水土保持研究所碩士論文。 簡金龍 (1996),富含礫石土壤水力特性之研究,國立台灣大學土木工程學研究所碩士論文。 Ahuja, L.R., J.W. Naney, P.E. Green, and D.R. Nielsen. (1984), Macroporosity to characterize spatial variability of hydraulic conductivity and effects of land management. Soil. Sci. Soc. Am. J. 48:699-702. Brakensiek, D.L., W.J. Rawls, and G.R. Stephenson. (1986), Determining the saturated hydraulic conductionity of a soil containing rock fragments. Soil. Sci. Soc. Am. J. 50:834-835. Dunn, A.J. and G.R. Mehuys. (1984), Relationship between Gravel Content of Soils and Saturated Hydraulic Conductivity in Laboratory Tests, In:Erosion and Productivity of Soils Containing Rock Fragments, Soil Sci. Soc. Am Special Publication No.13, Ch.6:55-63. Darcy, H (1856). “Les Fontaines Publigue de la ville de Dijon” Dalmont, Paris. Fetter, C. W. (1994). Applied Hydrogeology, 3rd Edition. Copyright
摘要: 台灣地區由於地質破碎,降雨量高,土壤沖蝕嚴重,細顆粒土壤極易流失,遺留下來之礫石相對增加,影響水分在土壤中傳輸性質,加上天然災害的影響,使得土壤結構產生變化,進而改變土壤之飽和水力傳導度。 本試驗利用台灣中部的紅壤(坋質壤土)為主要研究土樣,室內實驗以過篩後之重填土(粒徑<2mm)隨機加入體積含量0%、5%、15%、30%、45%、60%之礫石,以及將土柱分三層後均勻加入各層體積含量0%、5%、15%、30%、45%、60%之礫石,採定水頭試驗,測定其飽和水力傳導度。 室內實驗結果發現,隨礫石含量增加,總體密度增加、孔隙率降低。當礫石含量0%~15%時,因不符線性下降,未達5%之顯著水準,因此此部分不為本研究討論重點。在均勻混入15%~60%礫石含量及分層填入15%~60%礫石含量時皆達5%之顯著水準。由此可知當礫石含量增加,飽和水力傳導度會下降。
Due to geological characteristic and high rainfall, soil erosion is generally quite serious in Taiwan. The fine soil particles were eroded easily and the gravel content in soil increased gradually. Natural disaster may change soil structure. It will affect the water movement in the soil and modify soil saturated hydraulic conductivity. Red soil sample with six treatments, namely, 0%, 5%, 15%, 30%, 45%, and 60% of gravel in soil column and delaminated the soil to three levels with the same steps, then packed it to measure soil saturated hydraulic conductivity by applying constant-head apparatus. Experimental results indicated that, bulk density increased with increasing soil gravel content. There less than 0.05 was considered significant when gravel content in 0%~15%, so the study were not to discuss this part. No matter uniform or layering distribution got 0.05 significant when gravel content in 15%~60%. Therefore, soil saturated hydraulic conductivity decreased when gravel content in soil increased.
其他識別: U0005-2707200915514600
Appears in Collections:水土保持學系



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