Dendrochronologia最新文献

{"title":"A definition and standardised terminology for Blue Intensity from Conifers","authors":"Jesper Björklund ,&nbsp;Kristina Seftigen ,&nbsp;Ryszard J. Kaczka ,&nbsp;Miloš Rydval ,&nbsp;Rob Wilson","doi":"10.1016/j.dendro.2024.126200","DOIUrl":"https://doi.org/10.1016/j.dendro.2024.126200","url":null,"abstract":"<div><p>The published literature of the past 20 years expresses inconsistent terminology for the Blue Intensity (BI) method that could lead to confusion in analysis and interpretation. In this technical note we propose a standard terminology based around the prevalent use of BI for the variant that is positively correlated with wood density derived from X-ray and equivalent wood anatomical techniques. We highlight significant practical advantages of this standard terminology for data analysis, scientific interpretations as well as archiving, and provide some cautionary examples that could occur if not adhering to this terminology. In future studies using BI, we recommend to explicitly clarify that the standard terminology is used with the following phrase: The BI data produced in this study is consistent with the ‘2024 BI standard terminology’.</p></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"85 ","pages":"Article 126200"},"PeriodicalIF":3.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1125786524000377/pdfft?md5=1d3cb9314313ac1289ed9d3d84c73140&pid=1-s2.0-S1125786524000377-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140540577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of spatio-temporal extension of reaction wood and tree-ring eccentricity in juvenile Larix decidua (Mill.) and Picea abies (L.) Karst. trees","authors":"Andrea Fabiánová,&nbsp;Karel Šilhán","doi":"10.1016/j.dendro.2024.126199","DOIUrl":"10.1016/j.dendro.2024.126199","url":null,"abstract":"<div><p>Dendrogeomorphology allows for annual dating of various hazardous geomorphic processes in afforested areas. However, there is a lack of detailed knowledge about spatial extent of dated growth disturbances in the whole stems, which is a crucial factor for the selection of an appropriate sampling strategy. In this study, growth disturbances were analysed in the stems of five juvenile Norway spruces (<em>Picea abies</em> (L.) Karst.) and five juvenile Common larches (<em>Larix decidua</em> Mill.) growing on a slope affected by mass-movements. The analysed growth disturbances were: i) reaction wood and ii) tree-ring eccentricity. The relationships between stem curvature and properties of the growth disturbances were studied to offer potential recommendations for sampling. It was found that reaction wood was consistently present at all stem heights in the given event tree ring. Angle extent of the reaction wood tended to decrease with successive tree rings, although an increase in angle extent was observed at higher stem heights (in the case of <em>P. abies</em>). Main direction of the reaction wood tended to be deviated mostly in a near-tilt direction. The properties of the reaction wood had weak associations with both tree-ring eccentricity and stem curvature. Overall, both tree species exhibited similar values of tree-ring eccentricity. Greater eccentricity values appeared mostly in the tilt sampling direction and one of two lateral sampling directions. There was not apparent pattern in the tree-ring eccentricity values observed at different stem heights. Overall, eccentricity had weak influence on stem curvature. To sum it all, both juvenile <em>P. abies</em> and <em>L. decidua</em> trees are good recorders of the two growth disturbances tested. However, differences in the sensitivity of trees to recording events in their annual ring series should be taken into account to achieve the greatest dating potential.</p></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"85 ","pages":"Article 126199"},"PeriodicalIF":3.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140404057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Varied growth response of high alpine Rhododendron myrtifolium and forest zone tree species to climate warming in the Eastern Carpathians, Ukraine","authors":"Piotr Owczarek ,&nbsp;Mohit Phulara ,&nbsp;Pavlo Shuber ,&nbsp;Bartosz Korabiewski ,&nbsp;Marek Błaś ,&nbsp;Magdalena Opała-Owczarek","doi":"10.1016/j.dendro.2024.126198","DOIUrl":"https://doi.org/10.1016/j.dendro.2024.126198","url":null,"abstract":"<div><p>Plants growing along altitudinal transects in alpine and mountainous areas respond differently to climatic conditions. The present study is centred on the unique and ecologically significant species, <em>Rhododendron myrtifolium</em> Schott &amp; Kotschy, an evergreen clump-forming or prostrate dwarf shrub. This high-mountain endemic plant grows at several localities in isolated massifs of the Eastern Carpathians, but the greatest numbers of sites can be found in the subalpine and alpine belts of the Chornohora range. The main objectives of this study were (1) to assess the dendrochronological potential of <em>Rhododendron myrtifolium</em> as a new species in dendrochronological research and (2) to compare the growth response of <em>R. myrtifolium</em> (sampling elevation: 1800–1950 m a.s.l.) with <em>Picea abies</em> Karst. (1350–1500 m a.s.l.) and <em>Abies alba</em> Mill. (950–1050 m a.s.l.) collected from the upper and lower forest belts. Tree-ring material from 97 trees and shrubs enabled the construction of three site chronologies from sites located within the altitudinal transect. The longest chronology, covering the previous 184 years, was developed for fir. The chronology for the rhododendron was the shortest at 66 years. This species is the most sensitive of the three species analysed. The highest positive r-value (r=0.71) was obtained between the rhododendron chronology and the warm-season temperature (from March to July). Also, the growth of this species was significantly positively correlated with the summer temperature (r=0.50). In contrast, fir and spruce demonstrated a similar inverse relationship with August temperatures.</p></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"85 ","pages":"Article 126198"},"PeriodicalIF":3.0,"publicationDate":"2024-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140327832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pine processionary moth outbreaks and droughts have different tree ring signatures in Mediterranean pines","authors":"Hermine Houdas ,&nbsp;José Miguel Olano ,&nbsp;Héctor Hernández-Alonso ,&nbsp;Cristina Gómez ,&nbsp;Miguel García-Hidalgo ,&nbsp;Darío Domingo ,&nbsp;Antonio Delgado-Huertas ,&nbsp;Gabriel Sangüesa-Barreda","doi":"10.1016/j.dendro.2024.126197","DOIUrl":"10.1016/j.dendro.2024.126197","url":null,"abstract":"<div><p>Defoliating insects’ outbreaks play a critical role in trees’ carbon cycle. The pine processionary moth (PPM; <em>Thaumetopoea pityocampa</em>) is the major defoliating insect of Mediterranean coniferous forests. The frequency and intensity of PPM outbreaks is projected to increase as winter temperatures become milder due to climate warming. An accurate evaluation of this projection requires a wide spatial baseline of the historical PPM incidence. PPM outbreaks affect tree secondary growth leading to narrow rings, providing a tree level signal. However, PPM defoliation rings can be confounded with drought rings, the most frequent cause of narrow rings in Mediterranean environments. Thus, an accurate identification of PPM rings demands the consideration of additional tree ring traits. Here, we introduce a multiproxy approach to identify and distinguish PPM and drought events. We sampled four <em>Pinus nigra</em> (3) and <em>P. sylvestris</em> (1) stands in Spain. We identified and verified years of PPM defoliation using remote sensing analysis and field observations of Regional Forest Service. We identified drought events through the combination of climatic data with radial growth reductions. We considered climate growth residuals, among-trees growth variability, latewood percentage (%LW), intrinsic water-use efficiency (iWUE) and minimum blue intensity (BI) to discern between droughts and PPM outbreaks. In comparison with drought rings, PPM rings showed 1) more negative residuals in climate growth models, 2) higher secondary growth variance, 3) higher percentage of latewood and 4) lower iWUE. Minimum BI did not differ between drought and PPM rings, but was lower than in the rest of the rings. The combination of these traits provides a signature to identify PPM rings, opening the opportunity to reconstruct PPM incidence on a broad spatio-temporal scale.</p></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"85 ","pages":"Article 126197"},"PeriodicalIF":3.0,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1125786524000341/pdfft?md5=886af70c663644a301e3d0c4bec9a2f7&pid=1-s2.0-S1125786524000341-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140273718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detrending tree-ring widths in closed-canopy forests for climate and disturbance history reconstructions","authors":"Daniel L. Druckenbrod ,&nbsp;Edward R. Cook ,&nbsp;Neil Pederson ,&nbsp;Dario Martin-Benito","doi":"10.1016/j.dendro.2024.126195","DOIUrl":"10.1016/j.dendro.2024.126195","url":null,"abstract":"<div><p>Canopy disturbance events in forests often increase light availability and growth rates for surviving trees. Using ring widths, release-detection methods identify the initiation of rapid growth associated with these events enabling reconstructions of forest disturbance history. Conversely, dendroclimate reconstructions minimize these rapid growth responses by detrending entire ring-width time series to resolve underlying climate signals. Incorporating advantages from both of these approaches, we present a canopy disturbance detrending method that quantifies the subsequent, additional growth from release events as a discrete time series. Our method uses radial-growth averaging to detect release events and then power transformation and age-dependent smoothing splines to detrend individual release events, separating canopy disturbance responses from climatic effects. We test our canopy disturbance detrending method on both a coniferous and a broadleaf ring-width chronology from two contrasting temperate forests in eastern North America with known disturbance histories. The resulting disturbance growth time series agrees with the documented forest histories for each forest. Removing the effects of canopy disturbance from the ring-width series in each chronology improves climate correlations with monthly values of temperature and precipitation and may recover more low-frequency variation with past climate compared to other common detrending methods. Our method provides an alternative approach for detrending disturbance events in closed-canopy forests that should be accessible and useful for both ecological and climatological reconstructions.</p></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"85 ","pages":"Article 126195"},"PeriodicalIF":3.0,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dendroarchaeology in Greece – From humble beginnings to promising future","authors":"A. Christopoulou ,&nbsp;Y. Özarslan ,&nbsp;A. Elzanowska ,&nbsp;J. Moody ,&nbsp;E. Tsakanika ,&nbsp;T. Ważny","doi":"10.1016/j.dendro.2024.126196","DOIUrl":"10.1016/j.dendro.2024.126196","url":null,"abstract":"<div><p>It was back in the early 1960 s when Bryant Bannister recognized the potential of dendrochronological research on wooden cultural heritage in Greece. More than two decades later, in the late 1980 s, P.I. Kuniholm and C.L. Striker started collecting and analyzing tree-ring series from several historical buildings, forests, and archeological sites in Greece and the surrounding Aegean region. Despite highly promising results, especially from the northern and western parts of the country, dendroarchaeology did not attract much attention in subsequent decades. It was only near the end of the 2000 s that dendroarchaeology was reintroduced: first in Crete through the Cretan Dendrochronology Project, and then by another independent project concerning the restoration of a historical building on the island of Euboea. These isolated case studies inspired a five-year systematic research program called the “Balkan-Aegean Dendrochronology Project: Tree-Ring Research for the Study of Southeast-European and East Mediterranean Civilizations” (BAD project). Dendroarchaeological surveys of historical buildings and archaeological sites were conducted throughout Greece with an emphasis on regions that had been previously ignored, such as the southern part of the country and the Aegean islands. Priority was given to buildings under restoration since in such cases original timbers were usually accessible and the architects, structural engineers, and archaeologists in charge were willing to collaborate. Our goals were not only to date timbers or provide information about the species used or the possible origin of the wood, but also to document the date, evolution, interventions and even the construction phases of historical buildings, as well as to help all those interested parties (academics, non-academics, researchers, professionals, local communities, etc.,) see the value of such information and how dendroarchaeology can contribute to the reconstruction of local history and the protection of cultural heritage. Tree-ring analysis led to the development of 18 chronologies from historical timbers and forests for six different species and different areas of the country from remote mountainous areas to small islands across the Aegean. The current dataset covers more than a thousand (1000) years and demonstrates the further potential of dendroarchaeology in the region.</p></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"85 ","pages":"Article 126196"},"PeriodicalIF":3.0,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Productivity of local Norway spruce clones relates to weather sensitivity of height increment in the eastern Baltic region","authors":"Roberts Matisons,&nbsp;Pauls Zeltiņš,&nbsp;Rolands Kāpostiņš,&nbsp;Kristaps Ozoliņš,&nbsp;Āris Jansons","doi":"10.1016/j.dendro.2024.126187","DOIUrl":"https://doi.org/10.1016/j.dendro.2024.126187","url":null,"abstract":"<div><p>In the eastern Baltic region, Norway spruce (<em>Picea</em> abies) is predicted to decrease in abundance, resulting in substantial economic consequences. Such predictions have been based on distribution, as well as the sensitivity of growth, largely neglecting the adaptive potential of local populations. Under such circumstances, information on growth sensitivity and its genetic control, as well as productivity-sensitivity relationships is necessary to evaluate the adaptability of populations. Radial increment, which is highly sensitive to local conditions has been mainly used for weather-growth analysis, while height increment, which is a better proxy of productivity due to lower dependence on local density, has been neglected due to laborious gathering of data. Long-term weather sensitivity of annual height increment to weather fluctuations and anomalies (extremes) was estimated by the time series decomposition and multiple regression techniques. Clones of plus-trees from a local population differing by productivity at the age of 55 years growing in an experimental plantation in Latvia were studied. Meteorological conditions prevailingly had carry-over effects on height increment. Thermal regime in winter was the primary driver of height increment with moisture availability in summer showing secondary effects, presuming a positive effect of warming on growth. Abrupt changes in annual increment were related to the co-occurrence of a few weather anomalies, suggesting robustness of height growth. Height increment showed explicit sensitivity-productivity relationships with more productive genotypes being more tolerant and resistant to weather fluctuations. Considering that narrow spatial scale and climatic gradient were analysed, linear and nonlinear responses to weather conditions were estimated implying local adaptation and varying phenotypic plasticity of the genotypes, thus suggesting the persistence of adaptive potential of the local non-marginal population.</p></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"85 ","pages":"Article 126187"},"PeriodicalIF":3.0,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140134968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Growth-climate relationships of four tree species in the subtropical evergreen broad-leaved forests in Southwest China","authors":"Tong-Liang Xu ,&nbsp;Rao-Qiong Yang ,&nbsp;Zaw Zaw ,&nbsp;Pei-Li Fu ,&nbsp;Shankar Panthi ,&nbsp;Achim Bräuning ,&nbsp;Ze-Xin Fan","doi":"10.1016/j.dendro.2024.126186","DOIUrl":"10.1016/j.dendro.2024.126186","url":null,"abstract":"<div><p>Subtropical forests are an important carbon sink, yet our understanding on tree growth response to inter-annual climate variability remains limited. This study investigated the growth-climate relationships of four evergreen broad-leaved tree species (<em>Stewartia pteropetiolata</em> W. C. Cheng, <em>Schima noronhae</em> Reinw. ex Bl. Bijdr, <em>Machilus gamblei</em> King ex J. D. Hooker, and <em>Machilus yunnanensis</em> Lec) in the subtropical evergreen broad-leaved forests (EBFs) in the Ailao Mountains of Yunnan province, southwest China. We constructed tree ring-width residual chronologies for each species and correlated them with daily and monthly climate data. Ring-width chronologies of <em>S. pteropetiolata</em> and <em>S. noronhae</em> were positively correlated with precipitation, relative humidity, and self-calibrated Palmer drought index (scPDSI) during autumn of the previous year and spring-to-early summer of the current year, indicating that these two Theaceae species were sensitive to moisture availability. Tree radial growth of two <em>Machilus</em> species was primarily limited by excessive precipitation and dense cloud cover during the rainy season in this middle montane cloud forest. Moving correlations between climate variables and radial growth of all species were temporally unstable, with a weakening response to climate variability in recent decades. We highlight the dendroclimatic potential of evergreen broad-leaved tree species in moist subtropical forests. The findings offer a pertinent perspective, emphasizing the necessity of separately considering distinct ecological indicators for trees in order to obtain a comprehensive understanding of climate-growth responses within highly diverse subtropical forests.</p></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"85 ","pages":"Article 126186"},"PeriodicalIF":3.0,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140055152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radial growth responses of Larix gmelinii to drought events in dry and wet areas of northern temperate forests","authors":"Haibo Du ,&nbsp;Lulu Xu ,&nbsp;J. Julio Camarero ,&nbsp;Paolo Cherubini ,&nbsp;Mai-He Li ,&nbsp;Hong S. He ,&nbsp;Xiangjun Meng ,&nbsp;Zhengfang Wu","doi":"10.1016/j.dendro.2024.126185","DOIUrl":"https://doi.org/10.1016/j.dendro.2024.126185","url":null,"abstract":"<div><p>Drought stress caused by global climate warming affects tree growth in both dry and wet areas. However, the differences in tree growth responses to drought in dry and wet areas are poorly understood. Here, we collected 93 tree cores to analyze the differences in the radial growth responses of larch (<em>Larix gmelinii</em>) under climate change and tree growth resilience under drought events in the Altai Mountains (dry area) and Changbai Mountains (wet area). The results showed that larch growth in the Altai Mountains was significantly positively correlated with the self-calibrating Palmer Drought Severity Index (sc-PDSI) in all months and precipitation in the previous growth season and May, whereas it was significantly (<em>p</em> &lt; 0.05) negatively correlated with temperature in May and the previous June to August. In the Changbai Mountains, larch growth was significantly positively correlated with May maximum and mean temperature, and significantly positively and negatively correlated with precipitation in April and May，respectively (<em>p</em> &lt; 0.05). The mean resistance (recovery) of larch growth to drought in wet areas were significantly stronger (weaker) than that in dry areas (<em>p</em> &lt; 0.05). Moreover, strengthening the drought frequency led to a significant (<em>p</em> &lt; 0.05) decline in larch resistance in dry areas. Therefore, warming-induced increases in drought stress will aggravate negative impacts on the radial growth of larch forests in temperate dry areas but not in wet areas in the future.</p></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"84 ","pages":"Article 126185"},"PeriodicalIF":3.0,"publicationDate":"2024-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140052484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Drought responses of Italian silver fir provenances in a climate change perspective","authors":"S.D. Oggioni ,&nbsp;L.M.W. Rossi ,&nbsp;C. Avanzi ,&nbsp;M. Marchetti ,&nbsp;A. Piotti ,&nbsp;G. Vacchiano","doi":"10.1016/j.dendro.2024.126184","DOIUrl":"https://doi.org/10.1016/j.dendro.2024.126184","url":null,"abstract":"<div><p>In a climate change perspective, the resilience of Mediterranean forest ecosystems is closely linked to their ability to cope with drought and rising temperatures. This ability can be influenced by genetic differences between and within species or provenances. In a changing environment, management guidelines should weight the risks associated both to local and/or non-local provenances, to promote the effective conservation and sustainable management of resilient forest genetic resources. In this study, we analysed the growth responses to drought of silver fir (<em>Abies alba</em>) in the Tuscan-Emilian Apennine National Park in natural and planted forests, comparing the growth performance of three provenances of this species in Italy: (a) Western Alpine - (b) Northern Apennine (local) - (c) Southern Apennine. Drought severity was defined by the Standardised Precipitation-Evapotranspiration Index (SPEI). We carried out dendrochronological analyses by assessing climate-growth relationships and applying drought 'resilience indices' (RRR) based on tree ring width. Planted forests showed faster mean growth than highly fragmented natural forests, higher resilience to severe drought and significantly higher recovery to severe drought. Fir provenances do not differ in mean growth rate, while the Southern Apennine provenance showed significantly better recovery (rec) and resilience (resl) especially compared to the Western Alpine provenance during moderate (rec +5–15%, resl +13–15%) and extreme (rec +20% %, resl +22%) drought years. The local provenance showed an intermediate behaviour. Southern and local provenances showed higher resilience to drought compared to the Western Alpine one, proving to be very important forest genetic resources in the context of climate change response strategies. Finally, the RRR indices trends calculated on the years identified by SPEI6 generally showed greater differences between provenances and regeneration modes than on the years identified by SPEI12, possibly due to the increase in recurrent short-duration droughts in mountainous contexts during the growing season. These results provide important information on the drought response of different silver fir provenances under climate change, highlighting the importance of taking into account the genetic background of forest reproductive materials in forest management and planning. Thanks to the close collaboration with the National Park and local forest managers, these results may find concrete application, e.g., by properly evaluating the usefulness of provenance assisted migration in the National Park forests and providing better management of remnant silver fir natural forests.</p></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"85 ","pages":"Article 126184"},"PeriodicalIF":3.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1125786524000213/pdfft?md5=02488cdbedeef70e1766ef366b25ece0&pid=1-s2.0-S1125786524000213-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140138334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}