Mar Génova

• Professor (Full) at Universidad Politécnica de Madrid

Los robles eurosiberianos tienen una escasa y no bien conocida área de distribución en el Sistema Central oriental. Dado que consideramos que el conocimiento preciso de la Corología es una herramienta fundamental para el adecuado manejo y conservación forestal, se ha realizado un estudio pormenorizado de su presencia en este territorio. Éste se ha...

Uno de los métodos más precisos y fiables para conocer la edad de los árboles es el análisis dendrocronológico de las series o secuencias de anillos de crecimiento, pero en muchos casos únicamente se cuenta con secuencias parciales o incompletas. En este trabajo se presentan algunos estudios que han utilizado distintas metodologías para realizar es...

We investigated whether there are significant differences in the climatic response of resin-tapped and untapped maritime pine (Pinus pinaster Ait.) trees in four forest stands in the central mountains of Spain, where the species is of natural origin. The stands are located in different provenance regions, with the westernmost site located on the no...

This paper presents the results of the explorations carried out in the western sector of the Iberian Central System (western Gredos, B´ejar, Gata and Estrela mountain ranges). The macroremains found allow detailing the model of the landscape transformation, the composition and extension of their vegetal formations throughout the Holocene. Ninety-ni...

Las zonas montañosas son propensas a inundaciones torrenciales que se caracterizan por su capacidad de movilizar grandes volúmenes de sedimentos y otros materiales como troncos y otras piezas de madera de gran tamaño. En el caso de la cuenca alta del río Noguera Pallaresa (Pirineos de Lleida, España), las principales inundaciones destructivas están...

COORDINACIÓN José S. Carrión EQUIPO EDITORIAL José S. Carrión, Manuel Munuera, Juan Ochando, Manuel Casas-Gallego Secretaria Técnica y Maquetación Maximiliano Gómez Rodríguez, Santiago Fernández, Manuel Munuera Trabajo artístico y gráfico Gabriela Amorós, Victoria Sánchez-Giner, Ariadna Amorós, Manuel Munuera, Manuel Fernández-Díaz, Pedro Pablo...

La dendrocronología es el estudio de los anillos de crecimiento en la madera de troncos, ramas y raíces, que permite la datación del periodo de vida del árbol o arbusto, y de los fenómenos naturales o antrópicos que afectaron al mismo durante su ciclo vital. Con ello se pueden datar y caracterizar procesos geodinámicos (internos y externos), formas...

Tree‐ring data has been widely used to inform about tree growth responses to drought at the individual scale, but less is known about how tree growth sensitivity to drought scales up driving changes in forest dynamics. Here, we related tree‐ring growth chronologies and stand‐level forest changes in basal area from two independent data sets to test...

Flood frequency analyses relay on different source of data, including botanical records. Among these, the potential of dendrogeomorphology for flash flood reconstruction in torrential river systems has already been demonstrated in the specialized literature; however, studies combining other approximation techniques such as lichenometry are comparat...

Reconstrucción de regímenes de incendios forestales en el Bosque La Primavera

Unos kilómetros al norte del Hayedo de Montejo, en la zona conocida como El Mosquito, la Asociación de Amigos del Tejo y las Tejedas (AATT) ha realizado un censo de Taxus baccata L. en el que se han contabilizado 8.304 ejemplares. Alrededor de la mitad (54%) tiene entre 5 cm y 1,5 m de altura mientras el resto presenta mayor talla, incluso hasta pe...

Mountain forests are subjected to several pressures including historical land-use changes and climate warming which may lead to shifts in wildfire severity negatively impacting tree species with low post-fire growth resilience. This is the case of relict Mediterranean Scots pine (Pinus sylvestris) forests in the Sierra de Gredos mountains (central...

Integration of a diverse set of data from pollen, wood, macrofossils and dendrochronological studies from the Sierra de Ayllón, a mountainous region in central Spain, enables one of the most complete palaeoecological vegetation reconstructions for almost the whole Holocene on the Iberian Peninsula. Previously, the absence of pollen data for the ear...

Resumen: Las técnicas dendrocronológicas pueden aportar, además de la caracterización y data-ción de elementos patrimoniales, otra información de utilidad en la conservación preventiva del patrimonio cultural. Este trabajo se centra en la utilización de estas técnicas dendrocronológicas en diversos proyectos de investigación en los que, combinadas...

Aim of the study: To provide tree-age estimation of monumental Juniperus thurifera trees based on dendrochronological methods. Area of study: “Sabinar de Calatañazor” Nature Reserve (Calatañazor, Soria, Spain), a monumental forest of Juniperus thurifera traditionally used for grazing. Material and methods: Tree-ring width analysis of increment co...

The negative impacts of drought on forest growth and productivity last for several years generating legacies, although the factors that determine why such legacies vary across sites and tree species remain unclear. We used an extensive network of tree‐ring width (RWI, ring‐width index) records of 16 tree species from 567 forests, and high‐resolutio...

The sensitive mountain catchment of Portainé (Eastern Pyrenees, Iberian Peninsula) has recently experienced a significant change in its torrential dynamics due to human disturbances. The emplacement of a ski resort at the headwaters led to the surpassing of a geomorphological threshold, with important consequences during flood events. Consequently,...

Este trabajo presenta un estudio acerca del uso de técnicas dendrocronológicas para conocer la afección y evolución en el crecimiento de una muestra de los ejemplares de Pinus sylvestris supervivientes al incendio de 2009 en los municipios de Arenas de San Pedro y San Martín del Pimpollar (Ávila), que afectó a 4000 ha. A través del análisis dendroc...

This study links tree-ring growth and gross primary production for a variety of forest types under different environmental conditions across Spain. NOAA-AVHRR satellite imagery data were combined with dendrochronological records and climate data at a fine spatial resolution (1.21 km2) to analyze the interannual variability of tree-ring growth and v...

The effects of climate change on forest growth are not homogeneous across tree species distribution ranges because of inter-population variability and spatial heterogeneity. Although latitudinal and thermal gradients in growth patterns have been widely investigated, changes in these patterns along longitudinal gradients due to the different timing...

The relationship between the growth of 43-year old specimens of an Abies pinsapo Boiss stand located in the city of Valdivia (Chile) and the climatic variability of this site was studied. The objectives were to define the climatic response function and identify the climatic variables and periods that regulate radial growth rates and to compare the...

La dendrocronología y todas sus disciplinas derivadas (como la dendroarqueología y dendroclimatología) llevan décadas utilizándose para la caracterización y datación de elementos patrimoniales (edificaciones, barcos, obras pictóricas, instrumentos musicales...). Sin embargo, las técnicas dendrocronológicas pueden aportar, en combinación con métodos...

Drought is one of the key natural hazards impacting net primary production and tree growth in forest ecosystems. Nonetheless, tree species show different responses to drought events, which make it difficult to adopt fixed tools for monitoring drought impacts under contrasting environmental and climatic conditions. In this study, we assess the respo...

Drought is one of the key natural hazards impacting net primary production and tree growth in forest ecosystems. Nonetheless, tree species show different responses to drought events, which make it difficult to adopt fixed tools for monitoring drought impacts under contrasting environmental and climatic conditions. In this study, we assess the respo...

Drought is one of the key natural hazards impacting net primary production and tree growth in forest ecosystems. Nonetheless, tree species show different responses to drought events, which make it difficult to adopt fixed tools for monitoring drought impacts under contrasting environmental and climatic conditions. In this study, we assess the respo...

Flash floods represent one of the more usual natural hazards in mountain basins, and, combined with the lack of reliable flow data and the recreational use of the drainage basin by tourists and hikers, there is a significant risk of catastrophe. Here, we present a dendro-geomorphological reconstruction of a past flash flood event in the Caldera de...

The Portainé mountain catchment, containing the Port Ainé ski resort (Lleida, Spanish Pyrenees), displays active erosional and depositional phenomena caused by periodic torrential floods. These events present a potential risk and incur significant economic losses. In ungauged remote catchments (like Portainé), trees might be the only paleohydrologi...

Aim We investigate the effects of the environmental and geographical processes driving growth resilience and recovery in response to drought in Mediterranean Pinus pinaster forests. We explicitly consider how intraspecific variability modulates growth resilience to drought. Location Western Mediterranean basin. Methods We analysed tree rings from...

Torrential floods are hazardous hydrological phenomena that produce significant economic damage worldwide. Flood reconstruction is still problematic in ungauged mountainous areas due to the lack of systematic data, so indirect techniques are required. This paper presents an integrated palaeoflood study of a Pyrenean stream that combines fluvio-torr...

Forecasted increase drought frequency and severity may drive worldwide declines in forest productivity. Species-level responses to a drier world are likely to be influenced by their functional traits. Here, we analyse forest resilience to drought using an extensive network of tree-ring width data and satellite imagery. We compiled proxies of forest...

Climate warming and increasing aridity may negatively impact forest productivity across southern Europe. A better understanding of growth responses to climate and drought in southernmost populations could provide insight on the vulnerability of those forests to aridification. Here we investigate growth responses to climate and drought in nine Pinus...

The present paper analyzes different types of natural disasters recorded in the woody elements from reconstruction or repair works in two World Heritage buildings (the Old Mint and the Cathedral) in Segovia (Central Spain). We employed architectural and historical documentation, along with archaeoseismological analysis techniques in order to frame...

Un conjunto de maderas procedente de la Real Casa de Moneda y de la Catedral de Segovia ha sido analizado mediante técnicas dendrocronológicas y radiocarbónicas, con el objetivo de conocer el rango temporal de su instalación y relacionarlo con diversos desastres naturales que afectaron a ambas edificaciones. En el caso del entarimado del canal de l...

Las Angustias River is an ungauged stream in the Caldera de Taburiente National Park (Spain), where frequent intense flash-flood events occur. The aim of this research is to analyze the flood hazard at the Playa de Taburiente. Based on the limited information available (short time-series of daily precipitation), a statistical frequency analysis of...

Aim and area of study: In the present paper we estimated the age of four monumental Pinus canariensis of Gran Canaria (Canary Islands, Spain) by means of tree-ring analysis. Many tree-ring series have been accurately studied and many missing rings have been determined. Material and methods: The trees were dead and the samples analysed were big disk...

During the night of the 21 August 2015, a debris flow took place in one of the presently most active ravines of the Pyrenees, the Portainé torrent (Eastern Pyrenees, Spain), and caused considerable damage to the road. Detailed information was gathered from the debris flow monitoring system recently installed in the torrent and field surveys. The mo...

Resumen: En este trabajo se muestran los resultados del estudio geomorfológico, sedimentológico y geofísico del relleno sedimentario holoceno del valle del arroyo de Sandria (Campisábalos, Guadalajara), como parte integrante del estudio de los yacimientos paleontológicos existentes en la zona. A partir del extraordinario material subfósil leñoso en...

Las Angustias river is an ungauged stream located in the Caldera de Taburiente National Park (La Palma, Canary Islands, Spain), where frequent intense flash-flood events occur, sometimes with fatal consequences (4 deaths, November 2001) and considerable financial implications (over 700 000 euros in recent years). The aim of this research is to anal...

La estación de esquí de Port-Ainé, inaugurada en 1986 y situada en la comarca del Pallars Sobirà, al norte de la provincia de Lleida (Pirineo Central), es una infraestructura clave para esta comarca de montaña. La vertiente (cota máxima: Torreta de l’Orri, 2439 m s.n.m.; cota mínima: confluencia con el río Romadriu, 950 m s.n.m.), en cuya cabecera...

The presented results form part of a CHARMA project, which pursues a broad objective of reducing damage caused by uncontrolled mass movements, such as rockfalls, snow avalanches and debris flows. Ultimate goal of the project is to contribute towards the establishment of new scientific knowledge and tools that can help in the design and creation of...

RESUMEN Abies pinsapo es una especie apta para realizar un análisis dendroecológico. Se han elaborado tres cronologías medias en dos de las áreas de distribución principal de este taxon: una en la Sierra de Grazalema y dos con pinsapos de diferente edad en la Sierra de las Nieves. Las cronologías aportan información sobre la longevidad de las masas...

RESUMEN Se presenta un estudio dendrocronológico realizado en los pinares de Pinus nigra del monte Dehesa Espineda, Checa (Guadalajara). Se analiza la distribución de edades de los ejemplares más longevos localizados y sus patrones de crecimiento en diferentes tipos de sustrato y se elabora la cronología media. Se estudian los efectos de los cambio...

A finales del siglo XVI bajo el auspicio del rey Felipe II, se inicia una amplia encuesta en el reino de Castilla con la intención de reunir datos históricos y económicos para un mejor conocimiento de su territorio. Los resultados quedan recogidos en las llamadas Relaciones Topográficas de Felipe II. Algunas de las preguntas recogen información sob...

En las dos últimas décadas se han obtenido numerosos resultados procedentes de diferentes trabajos paleobotánicos (Cuaternario final) realizados en los territorios montanos periféricos de la depresión del Duero. Las metodologías empleadas han sido diversas y tienen que ver con los diferentes tipos de yacimientos y de muestras biológicas seleccionad...

Pinus pinaster is the pine forest species who occupy the major extension in the Iberian Peninsula. His ecological versatility enable it inhabit successfully on diverse ecosystems in a wide range of substrates and climates. Moreover, this species traditionally has been subjected to intensive use as the extraction of resin and wood. All of this makes...

Significance Forests dominate carbon fluxes in terrestrial ecosystems. We demonstrate how an intensified climatic influence on tree growth during the last 120 y has increased spatial synchrony in annual ring-width patterns within contrasting (boreal and Mediterranean) Eurasian biomes and on broad spatial scales. Current trends in tree growth synchr...

Understanding how climate change affects forests at varying spatiotemporal scales is important for anticipating its impacts on terrestrial ecosystems. Tree populations located near distribution boundaries or in regions where growth is constrained by a dominant climatic factor may provide valuable information on tree-growth responses to climate chan...

Scots pine forests subjected to continental Mediterranean climates undergo cold winter temperatures and drought stress. Recent climatic trends towards warmer and drier conditions across the Mediterranean Basin might render some of these pine populations more vulnerable to drought-induced growth decline at the Southernmost limit of the species distr...

Macro- and megafossil studies are of great value in palaeoecology because such evidence is spatially precise, directly radiocarbon dated, and usually taxon-specific. Here, we present new macro- and megafossil data from ten sites from the Gredos Mountains, central Iberian Peninsula, that suggest persistent forest cover through the late Holocene, wit...

La dendrogeomorfología resulta una herramienta muy útil en el análisis científico-técnico de las avenidas y flujos de derrubios en torrentes de alta montaña, en los que las fuentes de datos convencionales (caudales o precipitaciones) son escasas o inexistentes y presentan una cierta problemática social. El barranco de Portainé, en cuya cabecera se...

Flash floods and debris flows in Flash floods and debris flows in Portainé Portainéstream ( stream (LleidaLleida, Spain) dated , Spain) dated through through dendrogeomorphological dendrogeomorphologicalmethodologies methodolog

Keywords: Dendrogeomorphology, eastern Pyrenees, Fraxinus excelsior, Populus tremula, hazard mitigation The Portainé ravine, whose head the eponymous ski station Port Aine (Lleida, Spain), is a high mountain stream where conventional sources of data discharges or rainfall) for the analysis of floods and debris flows are scarce or non-existent. In r...

Flash floods and debris flows in Portainé stream (Lleida, Spain) dated through dendrogeomorphological methodologies

Flash floods and debris flows in Portainé stream (Lleida, Spain) dated through dendrogeomorphological methodologies

Combining dendrochronological and archaeoseismological methods for studying the effects of Lisbon 1755 earthquake on

The recent trend of dendroclimatic studies is the use of a greater number of samples of tree growth in order to improve the standardization phase and thereby the conservation of the medium and low frequency signal. This paper presents the first results for the reconstruction of the climate of the Teruel Iberian Range from a great multi-species data...

This communication is aimed to develop and apply dendrogeomorphologic methods for dating past floods that have left some evidence on the vegetation of the floodplain of Cega River as it passes through Pajares de Pedraza (Segovia province, Central Spain). We used the supply information from the vegetation (trunks, roots and branches) located near th...

Las Angustias torrent is one of the most visited spots of the La Palma Island, with more than 60,000 hikers per year. In this gauge, flash floods recurrently cause the evacuation of visitors and have occasionally provoked casualties in the Park. Furthermore, the revegetation of the torrential floodplain and shores have been hampered by torrential f...

Subfossil macroremains in the Iberian Central range: preliminary results

Since the end of the last glacial period, European Mediterranean mountains have provided shelter for numerous species of Eurosiberian and Boreal origin. Many of these species, surviving at the southern limit of their range in Europe and surrounded by Mediterranean ones, are relatively intolerant to summer drought and are in grave danger of loss, as...

Las Angustias torrent is an ungauged stream located in the 'Caldera de Taburiente' National Park (La Palma, Canary Islands, Spain), where frequent and intense flash flood events occur, even causing fatalities (such as in November 2001) and important economic damages (over 700,000 euros in the last two years). The aim of this research is to analyze...

Dendrochronology is useful to determine plant longevity, to provide insights into the structure and dynamics of plant populations and to study the relationships between growth and environmental determinants. The dendrochronology of endangered shrubs is unexplored, although their use represents an opportunity to produce better conservation guideline...

Pinus pinaster is of great ecological and economic importance and has traditionally been subjected to intensive uses such as wood and resin extraction. In the last decade, dendrochronological methods are increasingly being used to analyze the effects of climatic factors on the growth of the maritime pine, although tapped trees were generally avoide...

The geomorphological dynamics of the Barranco de Taburiente gorge, in La Palma (Canary Islands), has exposed sub-fossil organic layers in its riverbanks and margins, in which a large number of woody remains have been recovered. Samples have been located along ~3 km of the river and are clustered in three sites. Radiocarbon dating of the remains ind...

DenDroclimatología De Abies pinsApo mar génova Fuster EUIT Forestal. UPM. introducción En este capítulo se aporta información dendrocli-mática sobre Abies pinsapo Boiss., una de las especies forestales más emblemáticas de la Flora Ibérica y cuya reducida extensión peninsular y marcado carácter relic-to le imprimen una especial sensibilidad frente a...

AVANCES EN LA INVESTIGACIÓN DE LOS RECURSOS HÍDRI-COS EN ISLAS Y TERRENOS VOLCÁNICOS Canarias se puede considerar como uno de los mejores laboratorios hidrogeológicos del mundo. Por una parte, en la isla coexiste un amplísimo abanico de procesos volcá-nicos, desde aquellos asociados a materiales muy básicos a otros asociados a materia-les muy difer...

Las Angustias torrent is an ungauged stream located in the 'Caldera de Taburiente' National Park (La Palma, Canary Islands, Spain), where frequent and intense flash flood events occur, even causing fatalities (such as in November 2001) and important economic damages (over 700,000 euros in the last two years). The aim of this research is to analyze...

Pinus nigra subsp. salzmannii is found in the east and centre of the Iberian Peninsula, in the south of France and in North Africa. This subspecies occupies the westernmost position of the species’ general range. The persistence on the Iberian Peninsula of very long-lived specimens of Pinus nigra subsp. salzmannii, along with their sensitivity to c...