Modified hydrodynamics in fragmented canopies exposed to oscillatory flows
The general objective of this doctoral thesis has been to contribute to understand the modification of hydrodynamics in fragmented canopies. The effect of different parameters such as the canopy density, the plant height and flexibility and the architecture of the gap has been studied. Ecological im...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | CBUC, CESCA |
| Repositorio: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/403066 |
| Acceso en línea: | http://hdl.handle.net/10803/403066 |
| Access Level: | acceso abierto |
| Palabra clave: | Fragmented canopies Praderies aquàtiques fragmentades Praderas acuáticas fragmentadas Waves Onades Olas Transversal and longitudinal gaps Llacunes transversals i longitudinals Lagunas transversales y longitudinales Patches Parceles Parcelas Submerged and emergent rigid vegetation Vegetació rígida submergida i emergent Vegetación rígida sumergida y emergente Submerged flexible vegetation Vegetació flexible submergida Vegetación flexible sumergida 53 58 |
| Sumario: | The general objective of this doctoral thesis has been to contribute to understand the modification of hydrodynamics in fragmented canopies. The effect of different parameters such as the canopy density, the plant height and flexibility and the architecture of the gap has been studied. Ecological implications of the results have been discussed. Results point that the fluxes of biological particles, nutrients and sediments in fragmented canopies are modified compared with those for non-fragmented canopies, impacting on their ecological function. Therefore, canopies may optimize their structural characteristics to moderate the impact of fragmentation. This thesis shows that plant density and flexibility interacts with the gap width and the degree of fragmentation to facilitate sheltering in a manner not previously predicted |
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