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	Provedor de dados OceanDocs (2) ArchiMer (2) AgEcon (1) Boletín de Investigaciones (1) Autor Belin, Catherine (2) Lamoureux, Alice (2) Soudant, Dominique (2) Bowker, James Michael (1) Cho, Seong-Hoon (1) Guya, F. (1) Jembe, T. (1) Kusewa, Mwende (1) Millán,Santiago (1) Ogutu, Z. (1) Omondi, R. (1) Osumo, W. (1) Park, William M. (1) Rodríguez-Rodríguez,Jenny Alexandra (1) Sierra-Correa,Paula (1) Sitoki, L. (1) Wakwabi, E. (1) Mais... Palavra-chave Water bodies (6) DCE (2) Evaluation grids (2) Evaluation metrics (2) Grilles d’évaluation (2) Inland waters (2) Masses d’eau (2) Métriques d’évaluation (2) Phytoplancton (2) Phytoplankton (2) Quality assessment (2) Reference values (2) Valeurs de référence (2) WFD (2) Water reservoirs (2) Évaluation qualité (2) Aquatic plants (1) Artificial lakes (1) Coastal floodplains forest (1) Competition (1) Mais... Tipo do documento Proceedings Paper (2) Text (2) Info:eu-repo/semantics/article (1) Journal Article (1) Ano 2021 (1) 2014 (2) 2006 (3) País Belgium (2) France (2) Colombia (1) United States (1) Idioma Inglês (4) Francês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 6 Primeira ... 1 ... Última Delimitation and classification of coastal wetlands: Implications for the environmental management of the Colombian Continental Caribbean Boletín de Investigaciones Millán,Santiago; Rodríguez-Rodríguez,Jenny Alexandra; Sierra-Correa,Paula. ABSTRACT This article describes the cartographic layer construction process of Colombian Caribbean coastal wetlands at a scale of 1:100,000 and the results obtained in terms of their quantification and typing. Two cartographic layers were constructed and subsequently joined, one of the permanent water bodies and another of temporary water bodies and associated coverages. The layers were generated by multitemporal analysis of 45 Landsat 8-OLI satellite images, based on the NDVI index, uncertainty models by superposition of cartographic attributes, and a flood frequency consultation model on ALOS PALSAR 1 images. As a result, 576,279 ha of coastal wetlands were delimited (1.9 % of total wetlands in Colombia), of which 20.4 % are within protected areas. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Mangroves; Coastal floodplains forest; Water bodies; Geographic Information Systems (GIS); Protected areas. Ano: 2021 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612021000100121 Effects of physical mixing on the environment of satellite lakes and dams of lake Victoria, Kenya OceanDocs Guya, F.; Wakwabi, E.; Jembe, T.; Osumo, W.; Sitoki, L.; Ogutu, Z.. In the Lake Victoria (Kenya) catchment are found several small lakes and dams. The satellite lakes and dams are important aquifers and buffer zones for the lake. Besides the water bodies are important water sources both for livestock and domestic use. A study conducted in the water bodies between January 2003 and December 2004 showed that effects of eutrophication are wide spread in the lakes and dams. An investigation of primary productivity and effects of physical mixing and material transport was done. In Lake Sare, Lake Victoria waters are transported to the satellite lake during both day and night through Goye causeway that connects the two. The water bodies have higher rates of primary productivity than Lake Victoria. Spatial extent of oxygen... Tipo: Proceedings Paper Palavras-chave: Dams; Eutrophication; Water reservoirs; Inland waters; Water bodies; Eutrophication; Primary production; Lake basins; Water mixing; Artificial lakes; Oxygen depletion; Endemic species; Pollution effects; Eutrophication; Dams; Http://aims.fao.org/aos/agrovoc/c_2734; Http://aims.fao.org/aos/agrovoc/c_2121. Ano: 2006 URL: http://hdl.handle.net/1834/1494 Evaluation de la qualité des eaux littorales de la France métropolitaine pour l'élément de qualité Phytoplancton dans le cadre de la DCE. Etat des lieux des règles d’évaluation, et résultats pour la période 2007‐2012. Tome 1 ‐ Etat des lieux, méthodes et synthèse des résultats ArchiMer Belin, Catherine; Lamoureux, Alice; Soudant, Dominique. Ce rapport en deux tomes détaille les résultats de l’évaluation, avec les règles de la DCE (Directive Cadre sur l’Eau), de l’élément de qualité phytoplancton dans les masses d’eau de la France métropolitaine. Cette évaluation est réalisée à partir des données acquises sur la période 2007-2012. Le tome 1 contient également un état des lieux des grilles d’évaluation de l’indicateur phytoplancton qui sont applicables en 2014 pour les eaux littorales, et replace cette évaluation dans son contexte réglementaire, en rappelant les exigences de la DCE pour l’élément de qualité phytoplancton, et en donnant des informations sur l'historique et l’avancement des travaux d’inter-calibration et l’état des décisions au niveau européen. Il fait le point sur l’avancement... Tipo: Text Palavras-chave: DCE; Phytoplancton; Évaluation qualité; Masses d’eau; Métriques d’évaluation; Grilles d’évaluation; Valeurs de référence; WFD; Phytoplankton; Quality assessment; Water bodies; Evaluation metrics; Evaluation grids; Reference values. Ano: 2014 URL: http://archimer.ifremer.fr/doc/00394/50490/51227.pdf Evaluation de la qualité des eaux littorales de la France métropolitaine pour l'élément de qualité Phytoplancton dans le cadre de la DCE. Etat des lieux des règles d’évaluation, et résultats pour la période 2007‐2012. Tome 2 ‐ Résultats détaillés : fiches par masse d’eau et éléments d’expertise ArchiMer Belin, Catherine; Lamoureux, Alice; Soudant, Dominique. Ce rapport en deux tomes détaille les résultats de l’évaluation, avec les règles de la DCE (Directive Cadre sur l’Eau), de l’élément de qualité phytoplancton dans les masses d’eau de la France métropolitaine. Cette évaluation est réalisée à partir des données acquises sur la période 2007-2012. Ce rapport contient également un état des lieux des grilles d’évaluation de l’indicateur phytoplancton qui sont applicables en 2014 pour les eaux littorales, et replace cette évaluation dans son contexte réglementaire, en rappelant les exigences de la DCE pour l’élément de qualité phytoplancton, et en donnant des informations sur l’avancement des travaux d’inter-calibration et l’état des décisions au niveau européen. Enfin il fait le point sur l’avancement des... Tipo: Text Palavras-chave: DCE; Phytoplancton; Évaluation qualité; Masses d’eau; Métriques d’évaluation; Grilles d’évaluation; Valeurs de référence; WFD; Phytoplankton; Quality assessment; Water bodies; Evaluation metrics; Evaluation grids; Reference values. Ano: 2014 URL: http://archimer.ifremer.fr/doc/00394/50492/51228.pdf Macrophytes of Lake Victoria and succession after invasion of Water Hyacinth OceanDocs Omondi, R.; Kusewa, Mwende. The distribution of Lake Victoria (Kenya) macrophytes is described. Succession of macrophytes in the lake became more dramatic and dynamic after invasion of water hyacinth. The weed pushes and smothers other free-floating macrophytes like Pistia stratiotes. It then provides substrates for the emergent Vossia cuspidata, which later reduces its population by competition for light and nutrients. The noxious weed is believed to have led to extinction of Azolla nilotica in the lake. Tipo: Proceedings Paper Palavras-chave: Aquatic plants; Ecological succession; Introduced species; Species extinction; Inland waters; Water reservoirs; Geographical distribution; Emergent vegetation; Competition; Water bodies; Aquatic plants; Water hyacinth; Http://aims.fao.org/aos/agrovoc/c_559; Http://aims.fao.org/aos/agrovoc/c_15267. Ano: 2006 URL: http://hdl.handle.net/1834/1496 Measuring the Contribution of Water and Green Space Amenities to Housing Values: An Application and Comparison of Spatially Weighted Hedonic Models AgEcon Cho, Seong-Hoon; Bowker, James Michael; Park, William M.. This study estimates the influence of proximity to water bodies and park amenities on residential housing values in Knox County, Tennessee, using the hedonic price approach. Values for proximity to water bodies and parks are first estimated globally with a standard ordinary least squares (OLS) model. A locally weighted regression model is then employed to investigate spatial nonstationarity and generate local estimates for individual sources of each amenity. The local model reveals some important local differences in the effects of proximity to water bodies and parks on housing price. Tipo: Journal Article Palavras-chave: Hedonic model; Locally weighted regression; Park; Spatial; Water bodies; Resource /Energy Economics and Policy. Ano: 2006 URL: http://purl.umn.edu/8630 Registros recuperados: 6 Primeira ... 1 ... Última

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