頁籤選單縮合
題 名 | 四湖及後龍海岸林土壤有機物之組成與分布=Composition and Distribution of Soil Organic Matter in Coastal Forests at Szehu and Houlong |
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作 者 | 陳財輝; 陳振興; | 書刊名 | 臺灣林業科學 |
卷 期 | 18:2 2003.06[民92.06] |
頁 次 | 頁159-162 |
分類號 | 436.193 |
關鍵詞 | 海岸林; 土壤有機物; 黃酸; 腐植酸; Coastal forest; Soil organic matter; Fulvic acid; Humic acid; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究於雲林縣四湖海岸低濕地及苗栗縣後龍海岸飛砂地調查海岸林土壤剖面有機物組成及分布。四湖與後龍土壤剖面全碳含量均以表層最高,土壤表層pH值遠較下層土壤為低,表層腐質酸、黃酸等土壤有機物含量較高,造成表層土壤的pH降低。兩試驗地水溶性有機碳、黃酸與腐植酸均主要分布在土壤表層,在深度5 cm以下之含量急遽減少。試區土壤有機物在土壤表層迅速分解,加以砂質土對有機碳的吸附作用極低,使得相對的淋洗作用加強,因此海岸林下層土壤剖面並無有機物累積的現象。 |
英文摘要 | The distribution of soil organic matter of 2 coastal forests at the Szehu and Houlong in the western coast of Taiwan was evaluated. The soil pH value (pHH2O) in the surface layer was lower than that (pHH2O) of the deeper layer, which was due to the abundance of fulvic and humic acids. The water-soluble organic matter, which had mainly accumulated in the surface layer, decreased sharply for soil layers deeper than 5 cm in the soil profile. Soil properties at the study sites indicated the rapid decomposition of soil organic matter and lower adsorption of organic carbon by sandy soil, which caused relatively high eluviation in the soil profile. The consequence is that there is no accumulation of organic matter in the lower horizon of the pedon. |
本系統中英文摘要資訊取自各篇刊載內容。