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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 溫良碩(Liang-Saw Wen) | |
| dc.contributor.author | Sheng-Teng Huang | en |
| dc.contributor.author | 黃勝騰 | zh_TW |
| dc.date.accessioned | 2021-06-16T16:46:32Z | - |
| dc.date.available | 2015-08-27 | |
| dc.date.copyright | 2012-08-27 | |
| dc.date.issued | 2012 | |
| dc.date.submitted | 2012-08-20 | |
| dc.identifier.citation | 參考文獻
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Determination of silicate in freshwaters using flow injection with luminol chemiluminescence detection. Analytica Chimica Acta, 519(2): 137-142. Zwolsman, J.J.G., 1994. Seasonal variability and biogeochemistry of phosphorus in the Scheldt estuary, south-west Netherlands. Estuarine Coastal and Shelf Science, 39(3): 227-248. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/63512 | - |
| dc.description.abstract | 磷，是生物成長主要的營養鹽之一，磷循環在海洋環境中非常重要，在淡水與海水中磷為浮游植物生長的限制因子。本研究藉由正壓過濾以及交流過濾與消化反應來探討淡水河流域中磷的物種與相態。
總溶解態磷(TDP)濃度由高至低依序為基隆河、大漢溪、淡水河、新店溪。都會區域受到人為活動影響，輸入量平均約增加十倍。總溶解態磷主要為無機磷 (DIP ~60 %)，其中接近三成無機磷以膠體型態存在。水體與顆粒體之間的分布係數log Kd約為4.7±0.5 L/kg。河口感潮段地區呈現非守恆混合行為，額外添加約125 %，其中來自顆粒脫附量約佔一成，其餘可能為沈積物再懸浮作用影響。輸出至海洋的溶解磷通量為27,000 mol/day(0.9 tons/day)，其中膠體無機磷(DIPc)約佔三成，過往被認為是無機磷酸鹽，此現象會嚴重高估磷酸鹽(DIPf)所佔比例，導致全球海洋生物地球化學平衡及生態模式計算極度謬誤。 | zh_TW |
| dc.description.abstract | Phosphorus (P) is an essential nutrient for all living organisms. It is a key player in biogeochemical cycle. In freshwater and seawater, phosphorus is the limiting factor for phytoplankton growth. In this study, various filtration methods and chemical digestion method were used to understand phosphorous speciation and fractionation in waters of Danshuei tributary-estuary.
In the Danshuei tributary-estuary, total dissolved phosphorus (TDP) was mainly as inorganic phosphorous, average 60 %, in which, nearly 30% are in fraction of ≤1 kDa. As flow through the metropolitan area, the amount of phosphorus increase over 10 times due to anthropogenic activities. The particle-water partition coefficients of dissolved and particulate phosphorous yield log Kd = 4.7±0.5 L/kg, similar to other studies. Non-conservative mixing behavior were observed in tidal mixing zone, with addition of 122 % extra input of TDP, which nearly 10% was from particle desorption, other may due to benthic particle re-suspension. The export flux of TDP was about 27,000 mol/day (0.9 tons/day), in which, colloidal fraction account for more than 30%. This phenomenon would seriously cause overestimation of previously thought of phosphates fluxes to the ocean, and major flaws in the modeling efforts of biogeochemical balance and ecosystem for the global ocean. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T16:46:32Z (GMT). No. of bitstreams: 1 ntu-101-R98241408-1.pdf: 3500727 bytes, checksum: bb29d74a5c4aeaa13e7a66bcccd9e70e (MD5) Previous issue date: 2012 | en |
| dc.description.tableofcontents | 摘要 i
Abstract ii 目錄 iii 表目錄 vi 圖目錄 vii 第一章 緒論 1 1.1前言 1 1.2自然水體中的磷循環 1 1.3研究區域 2 1.4文獻回顧 3 1.5研究目的 4 第二章 實驗方法 6 2.1採樣地點、時間與方式 6 2.2實驗原理與分析方法 6 2.2.1過濾步驟 6 2.2.2磷酸鹽定量分析 7 2.2.3總溶解態磷消化與量測方法 8 2.2.4顆粒態磷消化與分析方法 8 2.3實驗器材與試劑 9 2.3.1實驗器材 9 2.3.2試劑配製 10 2.4實驗流程 11 2.4.1器材前置準備 12 2.4.2採樣與過濾流程 12 2.4.3無機磷酸鹽定量 13 2.4.4總溶解態磷定量 13 2.4.5顆粒磷之定量分析 14 2.4.6相關化學參數之分析方法 14 第三章 結果 21 3.1 基本水文概述 21 3.1.1 雨量與溫度 21 3.1.2 導電度與鹽度 21 3.1.3 懸浮顆粒與濁度 22 3.1.4 酸鹼度 22 3.1.5 溶氧 22 3.2 相關化學參數 23 3.2.1 溶解態矽酸鹽 23 3.2.2 溶解態鐵之空間分布與分子量不同型態之變化 23 3.2.2 溶解態錳之空間分布與分子量不同型態之變化 24 3.3磷的空間分布與物種變化 25 3.3.1 總溶解態磷之空間分布與物種變化 25 3.3.2 溶解態磷不同粒徑之相變化 26 3.3.3 顆粒態磷的空間分布與物種變化 26 第四章 討論 38 4.1溶解態磷之各流域環境變化探討 38 4.2水體中磷的搬運與凝絮作用 40 4.3混合作用及輸出通量 41 第五章 結論 52 參考文獻 53 | |
| dc.language.iso | zh-TW | |
| dc.title | 淡水河流域中磷物種的分布與型態變化 | zh_TW |
| dc.title | Speciation and Distribution of Phosphorus in
Danshuei tributary-estuary | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 100-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 林曉武(Saulwood Lin),洪慶章(Chin-Chang Hung) | |
| dc.subject.keyword | 磷,物種變化,淡水河流域,感潮帶,通量, | zh_TW |
| dc.subject.keyword | phosphorus,species,source,Danshuei River,estuary,flux, | en |
| dc.relation.page | 57 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2012-08-20 | |
| dc.contributor.author-college | 理學院 | zh_TW |
| dc.contributor.author-dept | 海洋研究所 | zh_TW |
| 顯示於系所單位： | 海洋研究所 | |
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