Person: Martín Duque, José Francisco
Loading...
First Name
José Francisco
Last Name
Martín Duque
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Geológicas
Department
Geodinámica, Estratigrafía y Paleontología
Area
Geodinámica Externa
Identifiers
7 results
Search Results
Now showing 1 - 7 of 7
Item Geological factors of the Guadalajara landscapes (Central Spain) and their relevance to landscape studies(Landscape and urban planning, 2004) García Quintana, Alvaro; García-Hidalgo Pallarés, José Francisco; Martín Duque, José Francisco; Pedraza Gilsanz, Javier de; González Martín, J.A.The landscapes of a territory are the consequence of its history; overlapped geological, vegetable and cultural histories usually exist on a landscape. At the Mediterranean domain, however, a translucent vegetation exists, and its history is closely related to the geologic and cultural histories, because low-technology agricultural uses on a different hardness rock background control vegetation. Thus, in areas like the Guadalajara province, the geologic composition and the human activities can be considered the primary conditions for landscape configuration. Both condition the typologies, distribution and relative importance of the geotic, biotic and anthropogenic components of landscapes. A complex network of interrelations among all them exists but, in the base of which lie the geology of the territory, included relief, because it has amore independent influence since man cannot modify the geologic factors; such as the colour of the rocks, the size and distribution of rock bodies, the palaeogeographic domains and the tectonic structure all which control landscape development and configuration. Moreover, geology influences conditions and even limit, the presence, typologies and development of the biotic and anthropogenic elements. These factors also have a major relevance for environmental management, educational and economic policy, and, in some cases, for environmental impact assessment.Item Dendrogeomorphology in badlands: Methods, case studies and prospects(Catena, 2012) Ballesteros Cánovas, Juan Antonio; Bodoque del Pozo, José María; Lucía Vela, Ana; Martín Duque, José Francisco; Díez Herrero, Andrés; Ruiz Villanueva, Virginia; Rubiales Jiménez, Juan Manuel; Génova Fúster, Mª del MarSoil and vegetation are interacting factors controlling erosion. Soil degradation processes may affect the normal tree and shrub development and inversely, vegetation can modulate the velocity and intensity of soil development or denudation. A dendrogeomorphological approach can be used to study these interactions, allowing to obtain a date and estimate mean or specific erosion rates. This is especially useful in an unrecorded badlands and gullied environments,where the scarce vegetationmay be the only proxy available to quantify the different geomorphic processes which have occurred. This paper provides a fundamental review of the dendrogeomorphological methodology applied to erosion measurement in badlands. Focusing on the response of the vegetation to the geomorphic processes, this paper: (a) describes themethodology developed to estimate erosion rates with exposed roots; (b) shows newadvances through case studies; and finally, (c) discusses future lines of research to reduce methodological uncertainties and for making dendrogeomorphology more widely applicable.Item Impacto hidrogeomorfológico de las minas y escombreras de Peñalén (Guadalajara) sobre el Parque Natural del Alto Tajo(Cuaternario y geomorfología, 2009) Martín Duque, José Francisco; Martín Moreno, Cristina; Nicolau Ibarra, José Manuel; Sanz Santos, Miguel Angel; Lucía Vela, AnaEl municipio de Peñalén (Guadalajara) alberga un conjunto de minas y escombreras degradadas, cuyo impacto ambiental sobre el inmediato Parque Natural del Alto Tajo es objeto de constante discusión. En este trabajo se ha llevado a cabo una primera aproximación al problema, tratando de caracterizar los condicionantes geomorfológicos del impacto hidrológico, de identificar las principales fuentes de sedimentos y de cuantificar los sedimentos que son emitidos desde estas zonas mineras y desde sus alrededores a la red fluvial. Esta aproximación ha puesto de manifiesto tres evidencias claras: (i) las zonas mineras de Peñalén se sitúan en localizaciones muy vulnerables a la erosión hídrica; (ii) los procesos erosivos y de emisión de sedimentos hacia el río Tajo son muy importantes desde esas zonas mineras y desde cárcavas naturales; (iii) existe una conexión hidrológica directa entre las fuentes de sedimentos de las zonas mineras degradadas de Peñalén y el río Tajo.Item Restoring earth surface processes through landform design. A 13-year monitoring of a geomorphic reclamation model for quarries on slopes(Earth surface processes and landforms, 2010) Martín Duque, José Francisco; Sanz Santos, Miguel Angel; Bodoque del Pozo, José María; Lucía Vela, Ana; Martín Moreno, CristinaThe application of geomorphic principles to land reclamation after surface mining has been reported in the literature since the mid-1990s, mostly from Australia, Canada and the USA. This paper discusses the reclamation problems of contour mining and quarries on slopes, where steep gradients are prone to both mass movement and water erosion. To address these problems simultaneously, a geomorphic model for reclaiming surface mined slopes is described. Called the ‘highwall–trench– concave slope’ model, it was fi rst applied in the 1995 reclamation of a quarry on a slope (La Revilla) in Central Spain. The geomorphic model does not reproduce the original topography, but has two very different sectors and objectives: (i) the highwall–trench sector allows the former quarry face to evolve naturally by erosion, accommodating fallen debris by means of a trench constructed at the toe of the highwall; (ii) the concave-slope base sector, mimicking the landforms of the surrounding undisturbed landscape, promotes soil formation and the establishment of self-sustaining, functional ecosystems in the area protected from sedimentation by the trench. The model improves upon simple topographic reconstruction, because it rebuilds the surfi cial geology architecture and facilitates re-establishment of equilibrium slopes through the management and control of geomorphic processes. Thirteen years of monitoring of the geomorphic and edaphic evolution of La Revilla reclaimed quarry confi rms that the area is functioning as intended: the highwall is backwasting and material is accumulating at the trench, permitting the recovery of soils and vegetation on the concave slope. However, the trench is fi lling faster than planned, which may lead to run-off and sedimentation on the concave slope once the trench is full. The lesson learned for other scenarios is that the model works well in a twodimensional scheme, but requires a three-dimensional drainage management, breaking the reclaimed area into several watersheds with stream channels.Item La información geomorfológica en el contexto de los inventarios ambientalesmapas fisiográficos para la gestión territorial(Boletín de la Real Sociedad Española de Historia Natural. Sección geológica, 2000) Martín Duque, José FranciscoLa información geomorfológica tiene un papel esencial en los estudios ambientales y en su aplicación para la gestión territorial. La elaboración de mapas geomorfológicos es una herramienta adecuada para representar y comunicar dicha información. La literatura pone de manifiesto la existencia de dos grandes tipos de cartografía geomorfológica: una morfogenética, más enfocada a actividades académicas y de investigación, y otra fisiográfica o de síntesis, basada en la configuración del terreno y más adecuada para objetivos aplicados. Esta última constituye el objeto de análisis fundamental de este trabajo, en donde se discuten las bases de aplicación y su utilidad para representar la información geomorfológica en el contexto de los inventarios ambientales actuales, ya sea siguiendo procedimientos del tipo landsystem o en forma de mapas temáticos. A partir de varios ejemplos en los que ha participado el autor, se concluye resumiendo los principios en los que se basa la utilidad de la cartografía fisiográfica en los estudios ambientales y de gestión territorial.Item Hazard Zoning for Landslides Connected to Torrential Floods in the Jerte Valley (Spain) by using GIS Techniques(Natural Hazards, 2003) Carrasco González, Rosa María; Pedraza Gilsanz, Javier de; Martín Duque, José Francisco; Mattera, Massimo; Sanz Santos, Miguel Angel; Bodoque del Pozo, José MaríaThe Jerte Valley is a northeast-southwest tending graben located in the mountainous region of west central Spain (Spanish Central System). Mass movements have been a predominant shaping process on the Valley slopes during the Quaternary. Present day activity is characterized as either ‘first-time failure’ (shallow debris slides and debris flows) or ‘reactivations’ of pre-existing landslides deposits. A delineation of landslide hazard zoning within the Valley has been carried out by using the detailed documentation of a particular event (a debris slide and a sequel torrential flood, which occurred on the Jubaguerra stream gorge), and GIS techniques. The procedure has had four stages, which are: (1) the elaboration of a susceptibility map (spatial prediction) of landslides; (2) the elaboration of a map of ‘restricted susceptibility’ in the particular case of slopes that are connected to streams and torrents (gorges); (3) the elaboration of a digital model which relates the altitude to the occurrence probability of those particular precipitation conditions which characterized the Jubaguerra event and (4) the combination of the probability model with the ‘restricted susceptibility map’, to establish ‘critical zones’ or areas which are more prone to the occurrence of phenomena that have same typology as this one.Item Measuring medium-term sheet erosion in gullies from trees: A case study using dendrogeomorphological analysis of exposed pine roots in central Iberia(Geomorphology, 2011) Bodoque del Pozo, José María; Lucía Vela, Ana; Ballesteros Cánovas, Juan Antonio; Martín Duque, José Francisco; Rubiales Jiménez, Juan Manuel; Génova Fúster, Mª del MarThe assessment of gully erosion poses a great challenge because of the complexity and connectivity of the geomorphic processes involved. This study focuses on the quantification of sheet erosion rates in a set of slope gullies located on the northern piedmont of the Guadarrama Mountains (Spanish Central System). In order to delineate accurately the gully areas in which sheet erosion was predominant, the Hydrologic/Erosion Response Unit (HRU/ERU) approach was used and a dendrogeomorphological analysis of exposed tree roots was carried out to quantify sheet erosion rates in one selected HRU/ERU. Identification of the first year of exposure by erosion from anatomical criteria was therefore critical. The 29 samples taken were prepared for anatomical analysis and cross-dated. Anatomical analysis of the samples showed a reduction in the lumen area of earlywood tracheids following root exposure and also, in most cases, a slight increase in growth rings. Moreover, at the end of the ring, latewood tissue and visible annual borders were very clearly defined by several rows of thick-walled tracheids. A non-parametric test was used on the findings derived from this qualitative analysis to objectify determination of the first year of exposure. Estimates of sheet erosion were obtained by dividing the height of eroded soil by the number of years that each root was exposed. The mean value of soil erosion for the entire study site was then determined from statistical inference. Using this procedure, a range of sheet erosion rates between 6.2 and 8.8 mm y−1 (125.2 and 177.8 t ha−1 year−1) was obtained for the dominant HRU/ERU of these gullies in central Iberia. These estimates of eroded soil thickness were adjusted based on the recent finding that root anatomical changes occur prior to their exposure by erosion.