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題 名 | 三個高山林地土壤中鐵、鋁之移動與聚積 |
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作 者 | 蔣先覺; 洪富文; 胡弘道; | 書刊名 | 林業試驗所研究報告季刊 |
卷 期 | 9:4 1994.12[民83.12] |
頁 次 | 頁375-388 |
分類號 | 436.193 |
關鍵詞 | 移動; 聚積; 氧化還原反應; 灰壤化作用; Mobility; Accumulate; Oxidation-reduction reaction; Podzolization; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究採集六個土體,分布於小雪山、船形山與阿里山等三個地區,各地區分別採兩個土體。研究其形態,理化性質,與三種化學溶解方法,萃取鐵、鋁、錳、矽等之含量,而討論其生成化育之過程。供試六個土體均化育2000m以上之高山,嶺峻坡陡,年雨量均為3000mm左右,年均溫10℃左右,同屬針葉樹佔優勢之林地,表土層有機物都較高,其pH值均近於4,具有機碳、粘粒、鐵、鋁、錳等發生位移與聚積之現象,其中以錳,鋁,二者均聚積於B層下部,鐵則聚積於B層之上部,粘粒亦聚積於B層上部,鐵之移動與粘粒之移動有關。 供試樣體所處之環境,自然破壞活動頻繁,土壤正常生成與化育過程,雖趨向於灰壤化作用(podzolization)之進行,惟常遭自然因素之干擾,因而產生複雜之變化。此一環境,易生成灰白層(albic horizon),淋澱土層(spondic horizon)之形態特徵,船型山土壤可分類為淋澱土(spodosols) ,小雪山及阿里山土壤之質地過細,內排水不良,致氧化還原反應過於強烈,而分類為極育土綱(Ultisol)。 |
英文摘要 | Six soil pedons were collected from three Alpine forest soils for this study. 32 soil horizons were selected from Shaw-shih shan (mountain), Chuan-chin shan and A-Li shan. Two soil pedons were sampled from each mountain of total six soil pedons. There were seven soil horizons collected from Shaw-shin shan, four soil horizons from Chuan-chin shan and five soil horizons from A-Li Shan. Soil samples were analyzed for their physical and chemical properties. The amoounts fo Fe, Mn, Al and Si were extracted by three chemical dissolution methods. The soil genesis and morphloogical characteristics of this soil pedons were described and discussed in this article. The elevation of all sites are above 2000 meters, with 10℃ ,mean annual; temperature amd 3000 mm precipitation. coniferous are the major species on the study sites. The pH values of these soils are near 4. The organic carbon, clays, Fe, Al, and Mn were translocated from A horizons and accumulated in the low part of B horizons. Fe and clays accumulated in the upper part of B horizons. The process of podzolization was continually occurred in these soil pedons, but it was interferenced by some other factors. And changed to complex situations albic horizons and spodic horizons can be formed in these conditions. Soil pedons in Chuan-Chin Shan could be classified as Spodosols, and soil pedons selected from Shaw-shin shan and A-Li shan can be classified as Ultisols, based on Soil Taxonomy, because their fine soil texture, poor drainage and low redox potentials. |
本系統中英文摘要資訊取自各篇刊載內容。