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題 名 | 關渡濕地底泥理化性狀及植群空間分區之相關性=Physical and Chemical Characteristics of Sediments Related with Plant Spatial Distribution in Kuan-Du Wetlands |
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作 者 | 廖少威; 張文亮; | 書刊名 | 農業工程學報 |
卷 期 | 46:2 2000.06[民89.06] |
頁 次 | 頁35-44 |
分類號 | 351.68 |
關鍵詞 | 濕地; 因子分析; 群集分析; 地理資訊系統; 底泥; Wetland; Factor analysis; Cluster analysis; Geographic information system; Sediment; |
語 文 | 中文(Chinese) |
中文摘要 | 因植物生長受土壤影響深遠,故本研究以關渡自然公園為例,將土壤實驗分析的結果利用主成份因子分析方法以說明顯著的潛在因子,並以地理資訊系統呈現其重要影響因子之空間分佈。結果顯示最重要的土壤潛在因子是「重金屬毒害因子」、「土壤鹽害因子」及「有機質含量因子」等三因子。再則以因子分析算得的因子得點為出發點,應用群集分析方法將採樣區分區,經分析結果可分為四個群集:低莖草澤區、水稻田區、高莖草澤區及逐漸旱生地等四區。以土質作植被分區對照現地調查植被分區,發現相似度很高。這可做為濕地管理之重要參考。 |
英文摘要 | In order to study that plant growth was affected greatly by sedimentation characteristics, Factor Analysis method was used to the data acquired by chemical analysis samples, and the results were displayed by geographic information system. The results also showed that the most important factors among soil properties are heavy metals, salinity and organic matters. Cluster analysis is performed using factor scores computed from those latent factors. Then we classify the Kuan-Du wetland into four distinct regimes: the short marsh, the rice field, the tall marsh, and gradual dry subarea. From the comparison of physical-chemical characteristics in sediments with plant community distribution, we found they are highly similar. This is an important consideration for wetland management. |
本系統中英文摘要資訊取自各篇刊載內容。