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題 名 | 陽明山地區溪流懸移質含量與坡度--土地利用關係指標之探討=The Study of Suspended Load Related to the Slope-Land Use Index in Yangmingshan Area |
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作 者 | 張伯宇; 徐君臨; | 書刊名 | 長庚科技學刊 |
卷 期 | 3 2004.12[民93.12] |
頁 次 | 頁315-332 |
分類號 | 554.56 |
關鍵詞 | 坡度; 土地利用; 懸移質; Slope; Land use; Suspended load; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究以陽明山地區的南磺溪、內雙溪、外雙溪、八連溪及瑪鍊溪等五處集水區為例,經由指標的建立與統計方法的分析,檢證集水區之坡度、土地利用與溪流懸移質間的關連。結果顯示,豪、大兩期研究區的溪流懸移質含量大增,且不同溪流間的差異明顯,整個研究期間各溪流懸移質含量的平均值及彼此間的變異深受該時期影響,而坡度與土地利用現狀所界定的土地利用適宜程度則是造成豪、大兩期懸移質含量空間變異的主要因素。本研究所提出的坡度--土地利用關條指標,日後可就水土資源質、量的各項要求標準,透過更多的個案研究,以之歸納出不同氣候及地質環境下土地利用過宜性的閾值,如此將能作為集水區土地開發之指引。 |
英文摘要 | In this paper, five watersheds located in Yangmingshan area are selected for studying the relationship among slope, land use and suspended load. The result suggests that the concentration of suspended load and its variation among different creeks in study area increase during high rainfall period. The interrelationship of slope and land use has significant influence on the spatial difference of the concentration of suspended load. The creek with high concentration of suspended sediments after pouring rain exists in the watershed with low suitability of land use defined by slope. By more case studies in the future, the slope-land use index representing the spatial interrelationship of slope and land use created in this research could be applied to explore the threshold of land development in watersheds under different climatic and geological conditions. |
本系統中英文摘要資訊取自各篇刊載內容。