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    Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/27540


    Title: 桃園臺地海岸沙丘及其土地利用之研究
    Authors: 鄭瑞壬
    Contributors: 地學研究所
    Date: 1991
    Issue Date: 2014-06-20 14:14:14 (UTC+8)
    Abstract: 桃園台地海岸為位於本島西北部突出的弧形海岸,在強勁的東北季風吹拂下,飛沙嚴重,沙丘發遠.自民國3年編入防止飛沙保安林地後,定沙及造林得宜,沙丘穩定,濱線進夷.近二三年來,海岸沙丘開發不當及環境變遷,沿海輸沙供源不足,已形成侵蝕退夷海岸.
    桃園台地海岸沙丘分為濱海及內陸二大沙丘群.濱海沙丘依其植被狀態分為裸沙丘,草生沙丘及林木沙丘三帶.依沙丘外形,濱海沙丘則有錐狀丘,台狀丘,球狀丘及條狀丘等主要類型,而條狀丘尚有櫛齒狀,並列丘,複合丘和重疊丘等變化.內陸沙丘則有新月丘和相互連接的橫沙丘.
    本研究區海岸沙丘之沙粒度組成,平均粒徑中位數為2.14 φ ,偏態係數為-0.16φ 及峰突係數為1.75φ,屬細沙粒級,沙粒淘選甚佳,略偏細粒而粒度集中,沙粒徑之大小,與垂直深度和水平縱深分布等相關性甚小,且無規則變化,但仍有向下風側漸細趨勢,具有海水及風營力雙重搬運及淘選特色.
    海岸沙丘資源開發經營,以往因經營及決策者,對沙丘特性認知不足及忽視地理環境要素,造成沙丘資源破壞及濫用,目前應積極建立地理資訊系統(G.I.S)資料庫,邀請地理學者及其他相關專家的參與,促使沙丘資源能獲得動態及永續的利用.
    Appears in Collections:[Department of Geography & Graduate Institute of Earth Science / Geography ] thesis

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