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題名 | 臺灣中部地區臺灣大學實驗林所屬茶園與鄰近林地土壤中黏土礦物特性之比較=The Comparison of Clay Minerals between Tea Plantation and the Adjacent Man-made Forest Soils of Experiment Forest, National Taiwan University, Central Taiwan |
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作者 | 陳秋萍; 王亞男; 白創文; | 書刊名 | 嘉大農林學報 |
卷期 | 9:2 2012.08[民101.08] |
頁次 | 頁92-106 |
分類號 | 434.22 |
關鍵詞 | 黏土礦物; 層間電荷; 林地土壤; 有機酸; Clay minerals; Layer charge; Forest soils; Organic acid; |
語文 | 中文(Chinese) |
中文摘要 | 土壤中之黏土礦物由於邊緣表面帶有淨電荷使土壤具有吸附陰、陽離子的能力,因此,除了對於土壤物理化學性質之影響上常扮演著相當重要的角色外,對森林土壤剖面的生成化育亦具有重要的意義。本研究選定臺大實驗林清水溝營林區所屬鳳凰茶園及鄰近木荷與杉木人工造林地為試驗地點,以了解不同樹種間不同深度土壤中黏土礦物的組成及層間電荷的分布,藉以比較樹種與經營方式對於土壤中黏土礦物特性的影響。黏土礦物的半定量顯示林地土壤有較多的羥基層間蛭石與高嶺石。由此可知,茶園土壤與林地土壤的風化程度有所不同。不同樹種與土地經營方式確實會對土壤中黏土礦物的特性造成一定程度的影響,土壤表層豐富的有機酸可能是造成蛭石經由風化而減少層間電荷的主要因子。 |
英文摘要 | The net charge on the edge of clay minerals is capable to adsorb both cation and anion, and thus it not only affects soil chemical and physical properties, but is also meaningful to the development of forest soil. Feng-Hung tea plantation and the adjacent man-made woodlands of guger tree (Schima superb) and China fir (Cunninghamia lanceolata) of Cingshueigou tract in the experiment forest, National Taiwan University, were selected as study sites for understanding the effects of plant species and forest managements on clay minerals by comparing the distribution of clay minerals and layer charges in different soil depth layers between those two plants. The results of semi-quantitative analysis of clay mineral s showed that man-made forest soil has more hydroxy-interlayered vermiculite and kaolinite, indicating that the degrees of weathering in tea plantation and man-made forest soils are different. We suggested that different tree species could affect the properties of soil minerals, and the abundant organic acid in soil surface could be the main reason to decrease the layer charge of weathered vermiculite. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。