穩定藥劑添加對土壤性質之影響

The Effect of Addition Stable Medicament for Soil Properties Improvement

董小萍(Shaw-Ping Dung)

《坡地防災學報》 3卷2期 (2004/12) Pp. 1-10

https://doi.org/10.29995/JSHR.200412.0001

摘要

本研究為探討稳定藥劑對改良土壤理化及力學性質之影響，将採集之三種土壤添加濃度為0%、0.1%、0.5%及1.5%之矽酸鈉、磷酸銨及生石灰静置三個月與六個月後，進行土壤基本理化性質、土壤稳定性及土壤剪力等寶驗，比较添加三種藥劑於土壤後對土壤性質之影響，並探討施用量對土壤剪力强度的影響。試驗结果顯示，随養置時間增加土壤之物理性質有改變，以添加1.5%濃度较顯著；整體而言以添加濃度為1.5%之土樣改良效果较佳，但若考虑植物適生性，則以添加濃度爲0.1%之土樣效果较佳。而在土壤力學性質方面，添加稳定藥劑可有效提高土壤之凝聚力與内摩擦角，且随添加濃度提高及飬置時間增長之效果愈明顯。

關鍵字

稳定藥劑 ； 土壤改良 ； 養置時間

並列摘要

The purpose of this study is to study the amending improved effect of the three kinds stable medicament on the physical and mechanical properties of How-Li, Na-Pu and Tan-Laou soils. Each Soil was treated with Sodium Silicate, Daimmonium Hydrogenphosphate and Quick Lime at the four rates, namely, 0, 0.1, 0.5 and 1.5% by ion weight. The treated samples were stored in plastic buckets for three and six months before testing. From the result obtained, the stable medicament adding can increase the soil aggregates, pH values, soil shear stress and frictional angle, but the organic mater will reduce. The more storage time will cause soil physical and mechanical properties changed, especially the stable medicament adding rate at 1.5%. Although the 1.5% stable medicament adding has the best soil improvement effects, it really does not favorable help for plant growing.

並列關鍵字

Stable Medicament ； Soil Improvement ； Storage Time