頁籤選單縮合
題 名 | 澎湖造林環境調查--土壤調查 |
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作 者 | 洪富文; 程煒兒; | 書刊名 | 林業試驗所研究報告季刊 |
卷 期 | 8:2 1993.06[民82.06] |
頁 次 | 頁109-127 |
分類號 | 432.226 |
關鍵詞 | 土壤調查; 造林; 澎湖; 土壤理化性質; 土壤鹽分; 土壤深度; Soil physical and chemical properties; Soil salt content; Soil depth; |
語 文 | 中文(Chinese) |
中文摘要 | 為明瞭澎湖造林地區土壤鹽分和養分含量對林木生長影響特於79年5 及11月分別於澎湖縣境之漁翁島合界,白沙島歧頭,澎湖本島東石段鼎灣、湖 西鄉龍門,以及烏崁等地區調查其土壤理化性質,其結果如后:本調查區域土壤 屬中鹼性反應(pH8.1),如有機物(13.0g kg-1),全氮(0.8g kg-1),有效磷(1.43mg kg-1) 均含量低;可抽出性陽離子含量及陽離子交換能量屬中等級以上;可抽出性陽離 子以鈣為主,並有游離碳酸鈣存在。鹽分含量與季節性有關,而兩次取樣結果均 屬無鹽等級。各地區間之土壤性質亦有差異,如陽離子交換能量以烏崁40.4cmol (+)kg-1最高,而龍門16.0cmol(+)kg-1最低;游離碳酸鈣含量則以龍門262.8g kg-1 最高,而最低為合界之99.5g kg-1;土壤質地龍門以粗質地居多,而合界、鼎灣 及烏崁則以中細質地居多。土壤性質除受不同採樣期之影響外,而其分佈亦受到 土壤深度之影響。 |
英文摘要 | In 1990, soil samples were collected from the coast to interior area at 5 locations on three big near-by islands of Peng Hu county in monsoon-free season and monsoon season, and the properties of the soils were analyzed, in order to find out the effect of soil nutrients and soil salt content on the growth of trees. In general, the soil texture is medium to heavy with hardpan occurred in some soils. The soil pH is all above 7.1 with the highest one reaching 9.0 at the coast area. The average content of soil organic matter, total nitrogen and available phosphorus all are in low level. And the content of extractable cations (K, Na, Mg) and cation exchange capacity belong to medium level. Extractable calcium is the dominant cation in all soils, and free calcium carbonate presents in the soil as well. The average of soil salt content at different season is below 1 ms cm-1, which indicates no salinity problem at sampling period. Most soil properties are related to sampling period; and the distribution of most soil properties are correlated to the depth of soil. |
本系統中英文摘要資訊取自各篇刊載內容。