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題名 | 大鵬灣底質特性空間變異暨與鄰近河川底質特性之分類研究=Research of Spatial Variation of Sediment Properties in Dapeng Bay and Classification of Sediment Properties among Neighboring Rivers |
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作者 | 廖少威; 賴文亮; 陳振正; 邱俊彥; | 書刊名 | 農業工程學報 |
卷期 | 54:2 2008.06[民97.06] |
頁次 | 頁9-20 |
分類號 | 445.259 |
關鍵詞 | 因子分析; 群集分析; 大鵬灣潟湖; 河川底質特性; Factor analysis; Cluster analysis; Dapeng bay; River sediment properties; |
語文 | 中文(Chinese) |
中文摘要 | 本研究主要目的是透過因子分析方法瞭解本海域暨鄰近河川底質特性。將土樣經實驗分析的結果利用主成份因了分析方法以說明顯著約潛在因子。結果顯示大鵬灣暨鄰近河川底質環境最主要的潛在因子爲「土壤質地影響因子」、「重金羅影饗因子」、「有機物質影響因子」及「營養監影響因子」。再由因子得點等濃度圖來說胡大鵬潟海域底質污染特性之空間分佈情形,鎘的含量在湖濱區相對高於其它區域。而鉛、鉻、鐵、錳、鋁、鎳等含量在囊袋入口處北端及潟湖東南地區及東南湖濱區則高於其它地區。可能受生物地質化學反應的影響,其含量濃度與大鵬灣特殊地形爲一囊袋潟湖並無絕對的相關。再以因子分析算得的因子得點,應用群集分析方法將採樣區分區,分析結果明顯的可區分出五個群集,此五個群集爲:大鵬灣海域囊袋入口處、大鵬灣海域囊袋未端處、林邊溪、高屏溪、東港溪。除少數採樣被錯分到林邊溪外,其它各群集都有很明顯的分群效果。三條河溪的群集底質特性主要係受至工業廢水、市鎭廢河水、農事禽畜等養殖廢污水的排入,而大鵬灣囊袋入口處及未端處群集除市鎮廢污水及養殖廢汚水的排入外又受到海域複雜約生物地質化學反應的影響。期望此些方法及結果對於大鵬灣潟湖及鄰近三河川在水資源之經營管理、生態保育及決策管上能有所幫助上。 |
英文摘要 | This work investigated sediment samples collected from Dapeng Bay and neighbouring rivers. Factor analysis was performed to explain the characteristics and variation of sediment quality. The result shows that the most important latent factors in Dapeng Bay are the soil texture causes factor, heavy metal influence factor, organic matter factor, and nutrient causes factor. From contour: maps of factor scores it shows heavy metal accumulated in the lakesides especially southeastward, it was due to biogeochemical processes and uncorrelative with its geography. Cluster analysts was performed with factor scores computed from those latent factors. Then we classified these research areas into five distinct classes using sampling thons it showed that it in the three river classes its sediment properties were influenced by industrial wastewater. domestic wastewater agricultural activities including farm activities and livestock breeding activities, but in Dapeng Bay classes were mot-e influenced by complicated biogeochemical processes. These methodologies and results can provide useful information concerning habitat recovery and management in Dapeng Bay and may be applicable to other estuarine habitats with similar properties or experiencing similar environmental issues. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。