A5017410028- Plant Water Relations and Carbon Dynamics
- Tree-ring climate responses
- Forest ecology and management
- Geology and Paleoclimatology Research
- Archaeology and ancient environmental studies
- Isotope Analysis in Ecology
- Ecology and Vegetation Dynamics Studies
- Wheat and Barley Genetics and Pathology
- Plant responses to elevated CO2
- Crop Yield and Soil Fertility
- Genetics and Plant Breeding
- Fire effects on ecosystems
- Horticultural and Viticultural Research
- Plant and animal studies
- Genetic Mapping and Diversity in Plants and Animals
- Remote Sensing and LiDAR Applications
- Remote Sensing in Agriculture
- Sports and Physical Education Studies
- Forest Insect Ecology and Management
- Soil Carbon and Nitrogen Dynamics
- Physical Education and Pedagogy
- Climate variability and models
- Botany and Plant Ecology Studies
- Food composition and properties
- Plant nutrient uptake and metabolism
Universitat de Lleida
2016-2025
Forest Science and Technology Centre of Catalonia
2015-2025
Joint Research Center
2019-2023
Istituto Nazionale di Economia Agraria
2016
Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria
2016
Universitat Politècnica de Catalunya
2016
Abstract Vegetation in water‐limited ecosystems relies strongly on access to deep water reserves withstand dry periods. Most of these have shallow soils over groundwater reserves. Understanding the functioning and functional plasticity species‐specific root systems patterns or differences use sources under more frequent intense droughts is therefore necessary properly predict responses seasonally future climate. We used stable isotopes investigate seasonal uptake by a sclerophyll forest...
Summary Stable isotopes are extensively used as tracers for the study of plant‐water sources. Isotope‐ratio infrared spectroscopy ( IRIS ) offers a cheaper alternative to isotope‐ratio mass IRMS ), but its use in studying plant and soil water is limited by spectral interference caused organic contaminants. Here, we examine two approaches cope with contaminated samples : on‐line oxidation compounds MCM post‐processing correction. We assessed these methods compared across 136 xylem water, set...
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 annual ring-width patterns within contrasting (boreal and Mediterranean) Eurasian biomes broad scales. Current trends are related to regional changes climate factors controlling productivity, overriding local taxonomic imprints forest dynamics. Enhanced is becoming a widespread, although regionally...
Summary The relevance of interspecific variation in the use plant water sources has been recognized drought‐prone environments. By contrast, characterization intraspecific differences uptake patterns remains elusive, although preferential access to particular soil layers may be an important adaptive response for species along aridity gradients. Stable isotopes were analysed and xylem samples 56 populations drought‐avoidant conifer Pinus halepensis grown a common garden test. We found that...
Abstract Winter‐drought induced forest diebacks in the low‐latitude margins of species' distribution ranges can provide new insights into mechanisms (carbon starvation, hydraulic failure) underlying contrasting tree reactions. We analysed a winter‐drought dieback at S cots pine's southern edge through dual‐isotope approach (Δ 13 C and δ 18 O tree‐ring cellulose). hypothesized that differential long‐term performance, mediated by interaction between CO 2 climate, determined fates individuals...
• Accurate phenotyping remains a bottleneck in breeding for salinity and drought resistance. Here the combined use of stable isotope compositions carbon (δ13C), oxygen (δ18O) nitrogen (δ15N) dry matter is aimed at assessing genotypic responses durum wheat under different combinations these stresses. Two tolerant two susceptible genotypes to were grown five irrigation regimes. Plant biomass, δ13C, δ18O δ15N, gas-exchange parameters, ion N concentrations, nitrate reductase (NR) glutamine...
ABSTRACT It is noteworthy that the largest part of global vegetation biomass depends on a thin layer cells: vascular cambium. Understanding wood formation processes and relationships with environmental factors crucial timely research question requiring interdisciplinary efforts, also to upscale information gained evaluate implications for tree growth forest productivity. We provide an overview up tree-ring development, bearing in mind combined action intrinsic drivers determines anatomical...
Individual differences in the access to deep soil water pools may explain differential damage among coexisting, conspecific trees as a consequence of drought-induced dieback. We addressed this issue by comparing responses severe drought three Mediterranean oak species with different tolerance, Quercus pubescens L. and frainetto Ten., mainly thriving at xeric mesic sites, respectively, cerris L., which dominates intermediate sites. For each species, we compared coexisting declining (D)...
A better understanding of the role plant composition and N cycle on agroecosystems is necessary, as these will be affected by future developments in agriculture intensification. To explore effect diversity yield carbon (C) nitrogen (N) balances forage mixtures, identifying potential co-benefits between functions. We analyzed results from a field experiment where plants three species (a grass, legume, non-legume forb) were cultivated monocultures mixtures. Three years after sward...
Carbon and oxygen isotope compositions (δ13C, δ18O) in tree rings have been shown to bear relevant climatic signals. However, little is known about the interrelationship between both isotopes wood constituents for species from other than relatively wet climates. We hypothesized that a adapted temporary droughts (e.g. Pinus halepensis Mill.) signal derived δ18O precipitation would be hidden by strong variability leaf transpirative enrichment. To test this assumption, we compared effect of...
Wheat is one of the founder crops Western agriculture. This study reconstructs agronomic conditions, potential yields, and kernel weight in beginnings cultivation domesticated free-threshing wheat, c. 8000 BC. The carbon nitrogen stable isotope compositions dimensions fossil grains naked wheat (Triticum aestivum/durum) were analysed. Samples collected Tell Halula Akarçay Tepe, two Neolithic archaeological sites from Middle Euphrates (the claimed core area for domestication). samples analysed...
Abstract We present a novel approach to study the sustainability of ancient Mediterranean agriculture that combines measurement carbon isotope discrimination (Δ 13 C) and nitrogen composition ( δ 15 N) along with assessment quality traits in fossil cereal grains. Charred grains naked wheat barley were recovered Los Castillejos , an archaeological site SE Spain, continuous occupation ca. 1500 years starting soon after origin (ca. 4000 BCE) region. Crop water status yield estimated from Δ C...
Carbon isotope discrimination (Δ) has been found to be either positively or negatively related grain yield of small cereals when grown in contrasting environments. In order clarify a possible association between barley (Hordeum vulgare L.) and Δ mature kernels, five 6-rowed 2-rowed cultivars were evaluated 22 rainfed environments northern Mediterranean Spain. Analyses variance suggested that the genotypic values more consistent across than yields. Genotype×environment (G×E) interaction for...