Sergio M. Vicente‐Serrano

Instituto Pirenaico de Ecología

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Juan Ignacio López‐Moreno

Instituto Pirenaico de Ecología

138

Ahmed El Kenawy

Mansoura University

103

Santiago Beguerı́a

Estación Experimental de Aula Dei

Fernando Domínguez‐Castro

Instituto Pirenaico de Ecología

César Azorín-Molina

Centre d'Investigacions sobre Desertificació

Miquel Tomás‐Burguera

Universitat de les Illes Balears

Enrique Morán‐Tejeda

Universitat de les Illes Balears

Jorge Lorenzo‐Lacruz

Universidad de La Rioja

Iván Noguera

UK Centre for Ecology & Hydrology

Marina Peña‐Gallardo

Universidad de Sevilla

Cooperative Institutions

Consejo Superior de Investigaciones Científicas

134

Centre National de la Recherche Scientifique

Instituto Pirenaico de Ecología

Universidad de Zaragoza

Institut de Recherche pour le Développement

Universidad Complutense de Madrid

Czech Academy of Sciences, Global Change Research Institute

Universitat de Barcelona

University of Lisbon

Universidad de Valladolid

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Precipitation trend analysis for different Mediterranean countries

Zenodo (CERN European Organization for Nuclear Research) (2023)

Sergio M. Vicente‐Serrano

Independent files with detailed numeric analysis of precipitation evolution and trends for different countries in the Mediterranean region.

10.5281/zenodo.10022617

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Increased vegetation sensitivity to meteorological drought from spring to autumn across European biomes

Research Square (Research Square) (2023)

Sergio M. Vicente‐Serrano Feng Tian Zhanzhang Cai Tobias Conradt Boris Boincean

Abstract Europe has experienced severe drought events in recent decades, with the diverse distribution of vegetation, varied drought characteristics, and other concurrent hydroclimatic factors making it challenging to understand how vegetation responds to drought. To shed light on this issue, we use an ensemble of vegetation growth indicators to analyze the instantaneous vegetation response to meteorological drought across European biomes. We find increased vegetation sensitivity to drought along canopy development during a year, with mean sensitivities rising from ‒0.01 in spring to 0.28 in autumn and the percentage of drought-susceptible areas rising from 18.5% to 57.8% across European biomes. Temporally, the sensitivity of vegetation growth to meteorological drought is exacerbated by soil water shortage. Spatially, the vegetation-drought sensitivity is related to vapor pressure deficit (ensemble mean correlation coefficients 0.71–0.87) and partly to atmospheric CO 2 concentration with dependencies on the maturity of the canopy (correlations ‒0.34 in spring and 0.81 in autumn), but only weakly to soil moisture (correlations 0.06–0.19). Our results highlight the spatiotemporal variations of vegetation-drought associations and sensitivities, as well as the roles of concurrent hydroclimatic factors. These patterns may have important implications for atmospheric carbon reduction, ecosystem stability, biodiversity conservation, and vegetation feedback on regional climate.

Biome

10.21203/rs.3.rs-2921592/v1

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The uncertain role of rising atmospheric CO2 on global plant transpiration

Earth-Science Reviews (2022)

Sergio M. Vicente‐Serrano Diego G. Miralles Nate G. McDowell Timothy J. Brodribb Fernando Domínguez‐Castro

As CO2 concentration in the atmosphere rises, there is a need for improved physical understanding of its impact on global plant transpiration. This knowledge gap poses a major hurdle in robustly projecting changes in the global hydrologic cycle. For this reason, here we review the different processes by which atmospheric CO2 concentration affects plant transpiration, the several uncertainties related to the complex physiological and radiative processes involved, and the knowledge gaps which need to be filled in order to improve predictions of plant transpiration. Although there is a high degree of certainty that rising CO2 will impact plant transpiration, the exact nature of this impact remains unclear due to complex interactions between CO2 and climate, and key aspects of plant morphology and physiology. The interplay between these factors has substantial consequences not only for future climate and global vegetation, but also for water availability needed for sustaining the productivity of terrestrial ecosystems. Future changes in global plant transpiration in response to enhanced CO2 are expected to be driven by water availability, atmospheric evaporative demand, plant physiological processes, emergent plant disturbances related to increasing temperatures, and the modification of plant physiology and coverage. Considering the universal sensitivity of natural and agricultural systems to terrestrial water availability we argue that reliable future projections of transpiration is an issue of the highest priority, which can only be achieved by integrating monitoring and modeling efforts to improve the representation of CO2 effects on plant transpiration in the next generation of earth system models.

Water cycle

Ecohydrology

10.1016/j.earscirev.2022.104055

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Citations (50)

The Little Ice Age in Iberian mountains

Earth-Science Reviews (2017)

Marc Oliva Jesús Ruíz Fernández Mariano Barriendos Gerardo Benito José María Cuadrat Prats

Little ice age

Peninsula

Ice core

10.1016/j.earscirev.2017.11.010

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Citations (201)

Characteristics and trends of flash droughts in Spain, 1961–2018

Annals of the New York Academy of Sciences (2020)

Iván Noguera Fernando Domínguez‐Castro Sergio M. Vicente‐Serrano

Abstract Flash droughts are characterized by rapid onset and intensification, as well as major environmental and agricultural impacts. In this study, we developed an objective method for identifying flash droughts using the standardized evaporation precipitation index (SPEI) based on a short time scale (1‐month) and high‐frequency data (weekly). The identification of flash droughts was focused on the development phase, anomalous decreases in index values in a short time period (4 weeks), and the magnitude of the events. The method was applied to mainland Spain and the Balearic Islands using a high spatial resolution gridded dataset for the period 1961–2018. For this period of 58 years, we characterized the occurrence of flash droughts and showed that for Spain, there was a large spatial and temporal variability in their frequency, with more occurring in the northwest than in the central and southern regions. The northern regions, where a higher frequency of flash droughts was found, showed negative trends in the frequency of flash droughts, while the regions subject to fewer flash drought events showed generally positive trends. We investigated the relative frequency of flash droughts affecting the study regions and found that they are a common phenomenon, as 40% of all droughts were characterized by rapid development. The findings of this study have important implications for drought assessment, monitoring, and mitigation.

Flash flood

10.1111/nyas.14365

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Citations (74)

Recent trends in Iberian streamflows (1945–2005)

Journal of Hydrology (2011)

Jorge Lorenzo‐Lacruz Sergio M. Vicente‐Serrano Juan Ignacio López‐Moreno Enrique Morán‐Tejeda J. Zabalza

Peninsula

Seasonality

Discharge

10.1016/j.jhydrol.2011.11.023

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Citations (196)

Integrating scales and LTER methods to better understand the overall dynamics of a mountain protected space: the Ordesa and Monte Perdido National Park

Ecosistemas (2016)

Marı́a B. Garcı́a Concepción L. Alados Ramón J. Antor José Luis Benito Alonso J. Julio Camarero

García M.B., Alados, C.L., Antor, R., Benito Alonso, J.L., Camarero, J.J., Carmena, F., Errea, P., Fillat, F., García-González, R., García-Ruiz, J.M., Gartzia, M., Gómez García, D., Gómez, I., González-Sampériz, P., Gutiérrez, E. Jiménez, J.J., López-Moreno, J.I., Mata, P., Moreno, A., Montserrat, P., Nuche, P., Pardo, I., Revuelto, J., Rieradevall, M., Sáiz, H., Tejero, P., Vicente-Serrano, S., Villagrasa, E., Villar, l., Valero-Garcés, B. 2016. Integrating scales and LTER methods to better understand the overall dynamics of a mountain protected space: the Ordesa and Monte Perdido National Park. Ecosistemas 25(1): 19-30. Doi.: 10.7818/ECOS.2016.25-1.04 The Ordesa and Monte Perdido National Park and the Pyrenean Institute of Ecology (CSIC) recently joined the Spanish LTER network. As part of our strategy to understand recent changes in this protected area, we are carrying out a number of projects to evaluate changes at different spatio-temporal scales, using a variety of methods and approaches. We highlight here some of the most consolidated ones: long-term reconstructions from sedimentary lake records and cave speleothemes, the dynamics of one of the few active Iberian glaciers, the physico-chemical components of alpine streams, springs and lakes, the fingerprint of climatic change from ancient trees, changes in the composition and structure of biodiversity of alpine communities, natural and man-made grasslands at different altitudes, and the treeline, and population dynamics of endangered species or habitat indicators. The ecological monitoring shows that changes in both climate and land use, are having a strong influence in the physiognomy and structure of some of the most iconic and abundant habitats in the National Park. However, we found an important spatial variability in some processes, and also that others do not fit the established paradigms. The integration of partial results obtained from different methodologies and approaches diminishes the importance of each perception separately, helps to evaluate current changes in a long-term framework (geological scale), and will serve to validate the forecasts when modeling future environmental scenarios.

Garcia

10.7818/ecos.2016.25-1.04

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Citations (3)

Recent trends in Iberian river flows (1945-2006)

10th EMS Annual Meeting (2010)

Jorge Lorenzo‐Lacruz Sergio M. Vicente‐Serrano Juan Ignacio López‐Moreno J. Zabalza Enrique Morán‐Tejeda

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List of contributors

Elsevier eBooks (2020)

Nassim Aït-Mouheb Clément Albergel Antoine Allam Jalel Aouissi Nicolas Baghdadi

10.1016/b978-0-12-818086-0.09994-5

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Changes in the frequency and severity of hydrological droughts over Ethiopia from 1960 to 2013

Cuadernos de Investigación Geográfica (2016)

Ahmed El Kenawy Matthew F. McCabe Sergio M. Vicente‐Serrano Juan Ignacio López‐Moreno S. M. Robaa

Here we present an analysis of drought occurrence and variability in Ethiopia, based on the monthly precipitation data from the Climate Research Unit (CRU-v3.22) over the period from 1960 to 2013. The drought events were characterized by means of the Standardized Precipitation Index (SPI) applied to precipitation data at a temporal scale of 12 months. At the national scale, the results reveal a statistically significant decrease in the severity of droughts over the 54-year period, a pattern that is mostly attributed to a statistically significant decrease in the frequency of high intensity drought episodes (i.e., extreme and very extreme droughts), compared to moderate droughts. To assess the general patterns of drought evolution, a principal component analysis (PCA) was applied to the SPI series. PCA results indicate a high spatial heterogeneity in the SPI variations over the investigated period, with ten different spatially well-defined regions identified. These PCA components accounted for 72.9% of the total variance of drought in the region. These regions also showed considerable differences in the temporal variability of drought, as most of the regions exhibited an increase in wetness conditions in recent decades. In contrast, the regions that receive less than 400 mm of annual precipitation showed a declining trend, with the largest changes occurring over Afar region. Generally, the highly elevated regions over the central Ethiopian Highlands showed the weakest changes, compared to the lowlands. This study confirms the local character of drought evolution over Ethiopia, providing evidence for policy makers to adopt appropriate local policies to cope with the risks of drought. Over Ethiopia, the detailed spatial assessment of drought evolution is required for a better understanding of the possible impacts of recurrent drought on agriculture, food production, soil degradation, human settlements and migrations, as well as energy production and water resources management across Ethiopia.

Cru

Trend analysis

10.18172/cig.2931

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Citations (41)