碩士 / 國立臺灣海洋大學 / 環境生物與漁業科學學系 / 97 / Beach litter is not only saboteur of environment along coastline, but also killer of marine organisms. Studies regarding beach litter in foreign countries have been more than 20 years, however there were no relevant domestic study in Taiwan. In this study, we collected beach cleanup data during August 2005-June 2006 and conducted principle component analysis (PCA) using both material and usage litter datasets to study the abundance, composition and the source of the beach litter in Chang-Tan Village, Keelung. In order to observe the situation without cleanup activities, we also took photos once a month during the study period in 3 sites where people are difficult to access from May 2008 to April 2009. The results of the study, which would be helpful to the management and research authorities, are summarized as follows:
1.The composition of beach litter in terms of materials and usage were analyzed. Plastics litter comprising 58.3 % is the most dominant material category, followed by miscellaneous (20.3 %) and foamed plastics (10.4 %). Beverage packaging consisting 45.3 % is the most dominant usage category, followed by fishing gear (13.0 %) and general packaging (12.4 %) .
2.The estimated abundance of beach litter in Chang-Tan Village averaged at 1,179±188 item / km2 during August 2005-June 2006. The most abundant month was in December of 1994 and the lowest month was June in the same year. Comparing with the international data, the status of the study area is between highly polluted area and apparently polluted area, and is varied with month. Such characteristic may due to the study areas are near residential area and wasted sanitary landfill site, and easy accessed by beach tourists /users .
3. PCA (R-mode) conducted using both material and usage litter datasets confirmed the existence of the three dominant litter sources. According to the result of Q-mode analysis, three dominant litter sources were defined as municipal-based, beach user-based, and fishery-based.
4.Quantification of the litter source by Q-mode analysis suggested that municipal -based source provided the majority (87.1 %) of the total litter items followed by beach user-based source (6.8 %) and fishery-based source (6.8 %).
Key word: beach litter, Principal Component Analysis (PCA), litter source, Chang-Tan Village, International Coastal Cleanup
| Identifer | oai:union.ndltd.org:TW/097NTOU5451003 |
| Date | January 2009 |
| Creators | Zong-Yu Yang, 楊宗諭 |
| Contributors | Hsueh-Jung Lu, Li-Shu Chen, 呂學榮, 陳麗淑 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 88 |
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