A5079339115- Hydrology and Watershed Management Studies
- Cryospheric studies and observations
- Plant Water Relations and Carbon Dynamics
- Climate change and permafrost
- Tree-ring climate responses
- Soil erosion and sediment transport
- Hydrology and Sediment Transport Processes
- Geology and Paleoclimatology Research
- Flood Risk Assessment and Management
- Landslides and related hazards
- Groundwater and Isotope Geochemistry
- Soil Moisture and Remote Sensing
- Isotope Analysis in Ecology
- Climate variability and models
- Geophysical and Geoelectrical Methods
- Geophysical Methods and Applications
- Groundwater flow and contamination studies
- Hydrological Forecasting Using AI
- Soil and Unsaturated Flow
- Karst Systems and Hydrogeology
- Soil and Water Nutrient Dynamics
- Methane Hydrates and Related Phenomena
- Tree Root and Stability Studies
- Precipitation Measurement and Analysis
- Smart Materials for Construction
University of Padua
2016-2025
Free University of Bozen-Bolzano
2023
Agriculture and Forestry University
2017
Abstract. In this commentary, we summarize and build upon discussions that emerged during the workshop “Isotope-based studies of water partitioning plant–soil interactions in forested agricultural environments” held San Casciano Val di Pesa, Italy, September 2017. Quantifying understanding how cycles through Earth's critical zone is important to provide society policymakers with scientific background manage resources sustainably, especially considering ever-increasing worldwide concern about...
Abstract This study presents a versatile index for the quantification of hysteretic loops between hydrological variables at runoff event timescale. The conceptual development is based on normalization input data and computation definite integrals fixed intervals independent variable. sum, minimum maximum differences computed rising falling curves provide information direction, shape extent loop. was tested with synthetic field from experimental catchments in Northern Italy. Hysteretic...
Abstract This study aimed to investigate the seasonal variability of runoff generation processes, sources stream water, and controls on contribution event water streamflow for a small forested catchment in Italian pre‐Alps. Hydrometric, isotopic, electrical conductivity data collected between August 2012 2013 revealed marked responses. Noticeable differences coefficients hydrological dynamics summer fall/spring rainfall events were related antecedent moisture conditions size. Two‐component...
Abstract. This study evaluated between-sample memory in isotopic measurements of δ2H and δ18O water samples by laser spectroscopy. Ten isotopically depleted spanning a broad range oxygen hydrogen compositions were measured three generations off-axis integrated cavity output spectroscopy ring-down instruments. The analysis procedure encompassed small (less than 2‰ for 1‰ δ18O) large (up to 201‰ 25‰ differences between adjacent sample vials. Samples injected 18 times each, the effect was...
Abstract The depth distribution of soil water contributions to plant uptake is poorly known. Here we evaluate the main sources used by plants at global scale and effect climate groups on variability distribution. meta‐analysis based isotope data (δ 2 H δ 18 O) extracted from 65 peer‐reviewed papers published between 1990 2017. We applied a new direct inference method quantify overlap xylem plants. median different depths varied 28% 100%, but they were generally >50%. shallow (0‐10 cm)...
Abstract Rain gauges, weather radars, satellite sensors and modelled data from centres are used operationally for estimating the spatial-temporal variability of rainfall. However, associated uncertainties can be very high, especially in poorly equipped regions world. Very recently, an innovative method, named SM2RAIN, that uses soil moisture observations to infer rainfall, has been proposed by Brocca et al. (2013) with promising results when applied situ satellite-derived data. a thorough...
Abstract The spatial and temporal characterization of geochemical tracers over Alpine glacierized catchments is particularly difficult, but fundamental to quantify groundwater, glacier melt, rain water contribution stream runoff. In this study, we analysed the variability δ 2 H electrical conductivity (EC) in various sources during three ablation seasons an 8.4‐km catchment Italian Alps, relation snow cover hydro‐meteorological conditions. Variations daily streamflow range due melt‐induced...
Abstract Estimation of young water fractions ( F yw ), defined as the fraction in a stream younger than approximately 2–3 months, provides key information for resource management catchments where runoff is dominated by snowmelt. Knowing average dependence summer flow on winter precipitation an essential context comparing regional drought severity and hydrological template downstream users ecosystems. However, estimation based seasonal signals stable isotopes oxygen hydrogen has not yet...
Abstract. Recent tracer-based studies using stable isotopes of hydrogen and oxygen showed that different methods for extracting water from plant tissues can return isotopic compositions due to the presence organic compounds because they extract domains. One most used is cryogenic vacuum distillation (CVD), which tends total water. Conversely, Scholander-type pressure chamber (SPC), commonly by tree physiologists measure potential in determine stress, expected only more mobile (i.e., xylem...
Abstract. The young water fraction (Fyw*), defined as the of catchment outflow with transit times less than 2–3 months, is increasingly used in hydrological studies that exploit potential isotope tracers. use this new metric intercomparison helpful to understand and conceptualize relevant processes controlling functioning. Previous have shown surprising evidence mountainous catchments worldwide yield low Fyw*. These values been partially explained by isolated processes, including deep...
Abstract The analysis of the stable isotopic composition hydrogen and oxygen in water samples from soils plants can help to identify sources vegetation uptake. This approach requires that heterogeneous nature plant soil matrices is carefully accounted for during experimental design, sample collection, extraction analyses. comparability shortcomings different methods extracting analyzing have been discussed specialized literature. Yet, despite insightful comparisons benchmarking methodologies...
Abstract Tracer‐aided studies to understand plant water uptake sources and dynamics in tropical ecosystems are limited. Here, we report the analysis of dry season source patterns five unique Costa Rica across altitudinal (<150–3,400 m asl) latitudinal (Caribbean Pacific slopes) gradients: evergreen seasonal rainforests, cloud forest, Páramo forest. Soil samples were collected during 2021. Plant soil extractions conducted using centrifugation. Stem extracted volume stem total content...
In this study, we investigate the surface flow time of rise in response to rainfall and snowmelt events at different spatial scales main sources originating channel runoff spring water a steep nested headwater catchment (Rio Vauz, Italian Dolomites), characterized by marked elevation gradient. We monitored precipitation elevations measured stage/streamflow outlet two rocky subcatchments same size, representative upper part dominated outcropping bedrock, soil-mantled vegetated subcatchment...
Abstract Stemflow is a key process in forested catchments due to its control on soil water content and nutrients’ transport. However, there are still few studies focusing stemflow infiltration relying direct observations that minimally invasive repeatable. In this study, we exploited the usefulness of stable isotopes hydrogen oxygen, as well time‐lapse electrical resistivity tomography (ERT) investigate fluxes soil. Specifically, aimed examine effectiveness both ERT trace for beech tree...
Due to the rapid shrinkage of mountain glaciers, subsurface ice, including ground ice stored in periglacial landforms such as rock glaciers (RGs), is expected become a significant shallow groundwater reservoir under future climate warming. However, there are still many open questions about volume inside RGs, its melting rates, hydrological significance and quality water flowing out from RGs. In this work, we aim at: i) characterizing geochemistry RG springs, ii) evaluating variability...
Hydrological and erosion processes in mountainous catchments are often influenced by climatic, geologic, anthropogenic factors. Recent studies show that significant the European Alps is caused extreme events, such as floods, windthrows, avalanches. However, integrating monitoring of hillslope with environmental tracers to investigate origin overland flow (OVF) rare. Thus, this study aims to: i) examine temporal geomorphologic changes an eroded experimental (including sediment estimation)...
Mountain grasslands are crucial ecosystems that provide essential services such as carbon storage, water regulation, and biodiversity conservation. However, these increasingly under threat from changing climatic conditions human activities. This study explores the historical future dynamics of vegetation in mountain worldwide, using a combination diverse datasets machine learning tools. For trends, spanning years 2000 to 2021, we analyzed ERA5 climate reanalysis data global Human...
In ecohydrology, stable water isotopes (&#948;2H and &#948;18O) are valuable tools for investigating the water&#8217;s movement through soil-plant-atmosphere continuum. Recent tracer-based studies using showed that different methods extracting from plant tissues can return isotopic compositions due to presence of organic contaminants because these extract domains. While Cryogenic Vacuum Distillation (CVD) is widely recognized as a standard method extraction analysis, its...
Forested catchments play a key role in storing and releasing fresh water. Climate changes affect global hydrological ecosystem processes with effects also observed at small scales. In this context, investigating spatial temporal water origins forested is fundamental to understand better predict the behavior of processes. However, very little known about both origin across different ecohydrological compartments Mediterranean catchments.In study, we collected hydrometeorological isotopic data...
Soil and xylem water samples are increasingly collected for isotope analysis to study the movement of within soil-plant-atmosphere continuum in alpine ecosystems. However, low sampling frequency, mainly due severe winter weather conditions impervious topography, remains a significant obstacle building comprehensive, data-driven understanding hydrological processes high-elevation environments.This focuses on integrating newly proposed snow model with HYDRUS-1D simulate isotopes through...