Knowledge Resource Center for Ecological Environment in Arid Area
| Biogeochemical processes in the Northeast Atlantic continent-ocean Boundary (Nothern Galician Rias, NW Iberian Peninsula) | |
| Ospina Álvarez;Natalia | |
| 出版年 | 2012 |
| 学位授予单位 | Universitat de Barcelona |
| 英文摘要 | This doctoral thesis deals with the biogeochemical processes taking place in estuarine systems known as 'rias', located at the NW of the Iberian Peninsula. Its realization has been possible thanks to financial support from the JAE-Program of the Spanish Council for Scientific Research (CSIC) co-funded by the European Social Fund (ESF), and the ‘INTERESANTE' project, funded by the CICYT. Additionally, it is a contribution to the Spanish LOICZ program (Land-Ocean Interactions in the Coastal Zone). An oceanographic characterization of the Northern Galician Rias is presented in Chapter 2. This chapter also involves an extensive analysis of summer upwelling and downwelling processes, winter shelf-water upwelling, and poleward intrusion in the northern Galician shelf. Chapter 3 deals with the fluvial contributions to the Northern Galician Rias, including the quantification of major and minor chemical elements (nutrient salts, trace elements) in the dissolved and particulate matter, chlorophyll-a, DIN, PON, DOC, POC and C/N ratio. In Chapter 4 the sediment-water fluxes of nutrients in a ria coastal systems are discussed. Fluxes driven by molecular diffusion and advective transport across sediment-water interfaces during tidal flooding for the Northern Galician Rias are calculated. Chapter 5 focuses on the hydrological, chemical and biological interactions in the Northern Galician Rias, exemplified by the case of the Ria of Barqueiro, identifying their oceanographic periods in relation to nutrient availability, primary production, phytoplankton biomass, taxonomic composition and hydrographic patterns. |
| 英文关键词 | Trace metals Metales traza Metalls tra?a Nutrients (Medi ambient) Nutrientes (Medio ambiente) Nutrients (Ecology) Clorofil·la Clorofila Chlorophyll Upwelling Surgència Surgencia Land-sea exchange Intercanvi terra-mar Intercambio tierra-mar Galician rias Rías gallegas Rias gallegues Ciències Experimentals i Matemàtiques 55 |
| 语种 | 英语 |
| URL | http://hdl.handle.net/10803/84153 |
| 来源机构 | Universitat de Barcelona |
| 资源类型 | 学位论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/246995 |
| 推荐引用方式 GB/T 7714 | Ospina Álvarez;Natalia. Biogeochemical processes in the Northeast Atlantic continent-ocean Boundary (Nothern Galician Rias, NW Iberian Peninsula)[D]. Universitat de Barcelona,2012. |
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