A5087485619- Tree-ring climate responses
- Plant Water Relations and Carbon Dynamics
- Forest ecology and management
- Ecology and Vegetation Dynamics Studies
- Forest Ecology and Biodiversity Studies
- Botany and Plant Ecology Studies
- Mediterranean and Iberian flora and fauna
- Forest Management and Policy
- Climate variability and models
- Tree Root and Stability Studies
- Horticultural and Viticultural Research
- Hydrology and Drought Analysis
- Bioenergy crop production and management
- Fire effects on ecosystems
- Plant Ecology and Soil Science
- Remote Sensing and LiDAR Applications
- Forest Insect Ecology and Management
- Earth Systems and Cosmic Evolution
- Historical and Literary Analyses
- Landslides and related hazards
- Cardiac Valve Diseases and Treatments
- Wood and Agarwood Research
- Geology and Paleoclimatology Research
- Soil Geostatistics and Mapping
- Precipitation Measurement and Analysis
University of Pavia
2010-2025
University of Turin
2002
Climate model projections suggest widespread drying in the Mediterranean Basin and wetting Fennoscandia coming decades largely as a consequence of greenhouse gas forcing climate. To place these other "Old World" climate into historical perspective based on more complete estimates natural hydroclimatic variability, we have developed World Drought Atlas" (OWDA), set year-to-year maps tree-ring reconstructed summer wetness dryness over Europe during Common Era. The OWDA matches accounts severe...
Abstract The growth of past, present, and future forests was, is will be affected by climate variability. This multifaceted relationship has been assessed in several regional studies, but spatially resolved, large-scale analyses are largely missing so far. Here we estimate recent changes 5800 beech trees ( Fagus sylvatica L.) from 324 sites, representing the full geographic climatic range species. Future trends were predicted considering state-of-the-art scenarios. validated models indicate...
Abstract Aim Climate change is expected to modify growth trends of forests around the world. However, this modification may vary in strength and intensity across a species' biogeographical range. Here, we study European populations silver fir ( Abies alba ) its southern distribution limits Spain, Italy Romania. We hypothesized that will differ range, with marked decline drought‐prone regions near southernmost limits. Location Europe (Spain, Italy, Romania). Methods collected tree‐ring data...
Significance Climate extremes are major drivers of long-term forest growth trends, but we still lack appropriate knowledge to anticipate their effects. Here, apply a conceptual framework assess the vulnerability Circum-Mediterranean Abies refugia in response climate warming, droughts, and heat waves. Using tree-ring network process-based model, future Mediterranean forests. Models abrupt reductions for late 21st century when climatic conditions will be analogous most severe dry/heat spells...
Under predicted climate change, native silver fir (Abies alba) and European beech (Fagus sylvatica) are the most likely replacement species for Norway spruce (Picea abies) monocultures planted across large parts of continental Europe. Our current understanding adaptation potential fir-beech mixed forests to change is limited because long-term responses two environmental changes have not yet been comprehensively quantified. We compiled analysed tree-ring width (TRW) series from 2855 dominant,...
Abstract. A study of the forest lines, tree lines and structures sub‐alpine was performed in Vallone Vallanta Alevé Varaita Valley (Cottian Alps, Piedmont, Italy). Forest‐ were analysed over 1728 ha while studied on six 3000‐m 2 plots located at line (2), (2) inside (2). Dendro‐ecological analysis living plants stumps showed that Larix decidua more abundant past than today Pinus cembra has expanded, both upwards within forests. Age structure revealed current stands established 200–220 yr...
Silver fir Abies alba is an indigenous tree species present in many southern European mountain forests. Its distribution area and its adaptive capacity to climate variability, expressed tree-ring growth series, make it a very suitable target for studying responses particularly complex like the Mediterranean basin where significant changes are expected. We used set of 52 site chronologies (784 trees) Italian Alps Apennines (38.1°– 46.6°N 6.7°– 16.3°E) temperature precipitation monthly data...
1 The tree-ring growth response of stone pine (Pinus cembra L.) to climatic variability was studied in the Alps. aims were (i) assess patterns at different spatial-temporal scales; (ii) identify climate parameters that explain most radial time domains; and (iii) study past current trends climate–growth relationships locations. 2 High- low-frequency chronologies compiled for 30 treeline sites on French Italian We used gridded data computed from 200 years instrumental records an extensive...
Abstract. This paper presents a reconstruction of the summer temperatures over Greater Alpine Region (44.05°–47.41° N, 6.43°–13° E) during last millennium based on network 38 multi-centennial larch and stone pine chronologies. Tree ring series are standardized using an Adaptative Regional Growth Curve, which attempts to remove age effect from low frequency variations in series. The proxies calibrated June August mean HISTALP high-elevation temperature time spanning 1818–2003. method combines...
Abstract Questions: What is the structure of anthropogenic upper forest‐grassland ecotone and are there differences in spatial relationships between tree species involved? Location: Valfurva Valley, Italian central Alps. Methods: We conducted a distribution analysis three 1‐ha permanent plots along an altitudinal gradient, from treeline to sub‐alpine forest. reconstructed age cores each individual with diameter > 4 cm at 50 height. Results: All classes examined had clumped structure. The...
ABSTRACT With ongoing global warming, increasing water deficits promote physiological stress on forest ecosystems with negative impacts tree growth, vitality, and survival. How individual species will react to increased drought is therefore a key research question address for carbon accounting the development of climate change mitigation strategies. Recent tree‐ring studies have shown that trees at higher latitudes benefit from warmer temperatures, yet this likely highly species‐dependent...
summary Comparisons are made between ring‐width response functions relating to precipitation and temperature in 72 Quercus populations ( Q. afares Pomel, canariensis Willd., pubesrens Willd. robur L.) situated the north south of western Mediterranean region. A multivariate procedure applied whole set allows a distinction be three types function according species considered. Analogies differences coded revealed by calculation mean response, firstly for each genus, secondly groups derived from...
Abstract The mechanistic pathways connecting ocean-atmosphere variability and terrestrial productivity are well-established theoretically, but remain challenging to quantify empirically. Such quantification will greatly improve the assessment prediction of changes in carbon sequestration response dynamically induced climatic extremes. jet stream latitude (JSL) over North Atlantic-European domain provides a synthetic robust physical framework that integrates climate not accounted for by...
1 Part of the forest reserve established in Paneveggio Forest (Trento, Italy) 1992 has been allowed to evolve without human intervention. Inside this reserve, two 1-ha long-term monitoring plots were subalpine multi-layered stands. 2 To investigate origin, spatio-temporal development and disturbance history these plots, present study combined dendroecological tree ring analysis with historical evidence. 3 One stand (VB3) had an uneven-aged population which oldest trees more than 400 years...
In a forest stand, competition plays central role, affecting individual growth. The size–growth relationship (SGR) indicates whether large trees grow proportionally more than (asymmetric SGR), equal to (symmetric), or less (inversely asymmetric) smaller trees. SGR is thus an indicator of the growth partitioning and intensity within stand. Using tree-ring analysis, we investigated long-term trends interannual variability in several Norway spruce (Picea abies (L.) Karst.) stands Paneveggio...
Climate forcing is the major abiotic driver for forest ecosystem functioning and thus significantly affects role of forests within global carbon cycle related services. Annual radial increments trees are probably most valuable source information to link tree growth climate at long-term time scales, have been used in a wide variety investigations worldwide. However, especially mountainous areas, tree-ring studies focused on extreme environments where sensitivity perhaps greatest but...
Heat and drought stress have triggered forest dieback episodes worldwide, affecting oak forests, particularly in hotspots of climate change such as the Mediterranean Basin. However, forecasting is not straightforward. In this study, we used earlywood anatomy to improve forecasts five species characterized by different sensitivity (i.e. from high low Quercus robur, Q. cerris, frainetto canariensis, humilis, pubescens) across Italy Spain. We measured radial growth, expressed basal area...
Summary 1. Three permanent plots (100×0 m) were established in the subalpine Norway spruce ( Picea abies (L.) Karst.) forest of Paneveggio spring 1993, to begin a long‐term ecosystem research project. The main purpose these was provide information about stand dynamics and suggestions for close‐to‐nature silviculture. 2. three stands selected represent most common structures forest. first is close forestry roads, has relatively regular continuous canopy, thinning cutting operations only ended...