Proyecto de ordenacion del monte nº 19 bis, denominado "Comas de Rubio y obaga de San Juan" del partido judicial de Seo de Urgel, provincia de Lerida

Hemos dividido el estudio del presente Proyecto en tres partes o títulos. El Título primero trata del Inventario del monte y comprende el Tratamiento de la masa y elección del método de Ordenación y los fundamentos y el Trazado de la misma». Y el Título Tercero trata del Plan Especial y en él se estudia la cuantía y localización de los aprovechamientos, la valoración de los mismos y las mejoras más importantes a realizar.

Proyecto de ordenacion del monte num 5, denominado "Cugoll" del termino municipal de Ars, Partido de Seo de Urgel, Provincia de Lerida

El monte "Cugoll" se halla enclavado en la provincia de Lérida, en el partido judicial de Seo de Urgel y en el término municipal de Ars.

Geomorphological analysis and evolution of an altered floodplain drainage system. The case of the Partido Stream (Spain)

The Partido Stream is a small torrential course that flows into the marsh of the Doñana National Park, an area that was declared a World Heritage Site in 1994. Before 1981, floods occurred, and the stream overflowed onto a floodplain. As an old alluvial fan, the floodplain has its singular orography and functionality. Fromthe floodplain, several drainage channels, locally called caño, discharged into themarsh. The Partido Streamhad themorphology of a caño and covered approximately 8 km from the old fan to the marsh. The stream was straightened and channelised in 1981 to cultivate the old fan. This resulted in floods that were concentrated between the banks in the following years, which caused the depth of water and the shear stress to increase, thus, scouring the river bed and river banks. In this case, the eroded materials were carried towards the marsh where a new alluvial fan evolved. Control measures on the old fan were implemented in 2006 to stop the development of the new alluvial fan downstream over the marsh. Thus, the stream would partially recover its original behaviour that it had before channelisation, moving forwards in a new, balanced state. The present study describes the geomorphological evolution that channelisation has caused since 1981 and the later slow process of recovery of the original hydraulic-sedimentation regime since 2006. Additionally, it deepens the understanding of the original hydraulic behaviour of the stream, combining field data and 2D simulations.