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Exploring potential drivers of divergence in tree-ring based temperature reconstructions of NW North America 基于树木年轮的北美西北部温度重建中差异的潜在驱动因素
IF 2.3 3区 农林科学
Dendrochronologia Pub Date : 2025-12-01 Epub Date: 2025-08-26 DOI: 10.1016/j.dendro.2025.126399
Marcel Kunz , Rob Wilson , Emily Reid , Eileen Kuhl , Jan Esper
{"title":"Exploring potential drivers of divergence in tree-ring based temperature reconstructions of NW North America","authors":"Marcel Kunz ,&nbsp;Rob Wilson ,&nbsp;Emily Reid ,&nbsp;Eileen Kuhl ,&nbsp;Jan Esper","doi":"10.1016/j.dendro.2025.126399","DOIUrl":"10.1016/j.dendro.2025.126399","url":null,"abstract":"<div><div>Non-stationary growth responses have been identified in tree-ring width (TRW) and maximum latewood density (MXD) chronologies of north-west North America. Here, we present MXD and latewood blue intensity (LWBI) data from two areas of the Yukon Territory (YT) to explore divergent climate-growth relationships until 2021 CE and evaluate the underlying reasons considering different detrending methods and instrumental datasets. We examine divergent long-term trends and changing inter-annual signals using well-replicated chronologies integrating a mixture of young and mature trees. Both tree-ring parameters correlate significantly (<em>p</em> &lt; 0.05) with May–August temperatures, but the MXD results are stronger and show less divergence in trend. Variability among differently detrended MXD chronologies is smaller and a signal-free version of age-dependent spline detrending appears to be optimal for both YT sites. Comparison of instrumental data products reveals that the highest and most stable correlations are achieved using the Berkeley Earth dataset. Additionally, using different sub-diurnal temperatures affects both trend and correlation divergence with maximum temperature consistently showing the strongest and minimum temperature the weakest results. We conclude that regional divergence in the YT is characterized by trend rather than high-frequency issues and is larger in LWBI than MXD data. Altering detrending methods and diurnal temperatures is of greater importance than varying instrumental data products. Most stationary responses are recorded when applying signal-free age-dependent spline detrending to tree-ring data and targeting Berkeley Earth maximum temperatures. Disregarding these methodological choices may amplify divergence in YT MXD and LWBI calibration models.</div></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"94 ","pages":"Article 126399"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144913835","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}
引用次数: 0
Forest-stand structure and treeline dynamics of Himalayan Fir over the last four centuries in Kashmir, western Himalaya 喜马拉雅西部克什米尔地区近四个世纪以来喜马拉雅冷杉的林分结构和树线动态
IF 2.3 3区 农林科学
Dendrochronologia Pub Date : 2025-12-01 Epub Date: 2025-11-04 DOI: 10.1016/j.dendro.2025.126442
Stuti Jain , Bency David Chinthala , Parminder Singh Ranhotra , Pushpendra Pandey , Mayank Shekhar , Jussi Grießinger , Rajesh Joshi , Maroof Hamid , Firdous A. Dar , Faizan Shafee , Anzar Ahmad Khuroo , Chandra Prakash Singh , Rajesh Bajpai , Achim Bräuning
{"title":"Forest-stand structure and treeline dynamics of Himalayan Fir over the last four centuries in Kashmir, western Himalaya","authors":"Stuti Jain ,&nbsp;Bency David Chinthala ,&nbsp;Parminder Singh Ranhotra ,&nbsp;Pushpendra Pandey ,&nbsp;Mayank Shekhar ,&nbsp;Jussi Grießinger ,&nbsp;Rajesh Joshi ,&nbsp;Maroof Hamid ,&nbsp;Firdous A. Dar ,&nbsp;Faizan Shafee ,&nbsp;Anzar Ahmad Khuroo ,&nbsp;Chandra Prakash Singh ,&nbsp;Rajesh Bajpai ,&nbsp;Achim Bräuning","doi":"10.1016/j.dendro.2025.126442","DOIUrl":"10.1016/j.dendro.2025.126442","url":null,"abstract":"<div><div>The Himalaya supports a rich biodiversity and forest ecosystems providing important ecological services for a vast human population. Owing to the fragility of the Himalaya to environmental changes, precise knowledge about long-term forest functioning under warming-induced climate changes is crucial for future sustainability of forest resources. Treeline responses and changes in the forest-stand structure are indicators of ecosystem response to climate change. Using tree-ring data and tree size parameters, we investigated age-girth-height relationships by developing linear and nonlinear regression models, and calculated treeline shifts based on age-altitude relationships of <em>Abies pindrow</em> (Himalayan Fir) over the last four centuries from the Daksum-Sinthan (DK-SN) and Gulmarg (GUL) sites of Kashmir, western Himalaya. The Fir tree reached its upper elevation limit of &gt;3500 masl by the mid-20<sup>th</sup> century, with average shift rates over 360 years of ∼1.42 and 1.79 m/yr at GUL and DK-SN, respectively. The recorded highest shift-rate of Fir occurred during the 17<sup>th</sup> century, coinciding with Little Ice Age climatic episode. Subsequent decline in shift-rates to &lt;1 m/yr, relate to low-moisture conditions during the pre-monsoon months (April-June) hampering seedling establishment. Fir trees showed high recruitment rate during the 19<sup>th</sup> and 20<sup>th</sup> centuries at the study sites, as indicated by &gt;50 % population of Fir trees younger than 200 years of age. Warming of spring season and availability of required soil-moisture probably helped to tree recruitment during last 200 years. The near stagnant upper limit of the Fir since last few decades at both sites hints towards the role of non-climatic factors including topography, land-surface-processes, and possibly anthropogenic activities. Our study provides crucial insights on the much-neglected long-term forest-stand dynamics and environmental changes in the treeline ecotone, with wide implications for biodiversity conservation and ecosystem restoration under the pressures of climatic and non-climatic factors.</div></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"94 ","pages":"Article 126442"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145465754","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}
引用次数: 0
Drought-driven tree growth limitations and missing rings in the Altai Mountains, China 中国阿尔泰山干旱驱动的树木生长限制和年轮缺失
IF 2.3 3区 农林科学
Dendrochronologia Pub Date : 2025-12-01 Epub Date: 2025-11-19 DOI: 10.1016/j.dendro.2025.126446
Kailong Guo , Tongwen Zhang , Shulong Yu , Kexiang Liu , Dong Guo
{"title":"Drought-driven tree growth limitations and missing rings in the Altai Mountains, China","authors":"Kailong Guo ,&nbsp;Tongwen Zhang ,&nbsp;Shulong Yu ,&nbsp;Kexiang Liu ,&nbsp;Dong Guo","doi":"10.1016/j.dendro.2025.126446","DOIUrl":"10.1016/j.dendro.2025.126446","url":null,"abstract":"<div><div>In dendrochronology, missing tree rings are commonly regarded as indicators of suppressed tree growth, reflecting inhibited cambial activity; however, the connection between missing tree rings and climatic factors still lacks thorough investigation. This study focuses on <em>Larix sibirica</em> growing in the Altai Mountains, where the overall missing tree ring rates (MRRs) were calculated for three sampling plots as follows: BLS (1.20 %), KLS (1.41 %), and TZB (0.60 %). Years with significantly missing tree rings (<em>p</em> &lt; 0.01) coincide with documented drought events, occurring in 1965, 1973, 1983, 1984, 1999, and 2009, with 2009 showing the highest proportion of missing tree rings, reaching up to 24.94 %. The results suggest that drought stress is the primary limiting factor for radial growth of trees in the region. Additionally, correlation analysis showed that both tree growth and the self-calibrating Palmer Drought Severity Index (sc-PDSI) presented an extremely significant positive correlation. In the five statistically analyzed significant missing tree ring events, the resistance of trees is consistently less than 1 (or negative), with <em>Larix sibirica</em> showing sensitivity and low resistance to drought events. Assessment of tree growth status indicates that consecutive drought events decrease ecological stability, leading to suppressed growth and decline in trees.</div></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"94 ","pages":"Article 126446"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145571338","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}
引用次数: 0
Response of treeline dynamics to climate change on the northern slope of Taibai Mountain, China 太白山北坡树线动态对气候变化的响应
IF 2.3 3区 农林科学
Dendrochronologia Pub Date : 2025-12-01 Epub Date: 2025-08-28 DOI: 10.1016/j.dendro.2025.126402
Siqin Zhao , Shuheng Li , Qi Liu , Le Li , Yiqi Zhao , Maoxin Du , Ziyi Yang , Fei Hu , Zhiqi Zhang , Jiahao Guo
{"title":"Response of treeline dynamics to climate change on the northern slope of Taibai Mountain, China","authors":"Siqin Zhao ,&nbsp;Shuheng Li ,&nbsp;Qi Liu ,&nbsp;Le Li ,&nbsp;Yiqi Zhao ,&nbsp;Maoxin Du ,&nbsp;Ziyi Yang ,&nbsp;Fei Hu ,&nbsp;Zhiqi Zhang ,&nbsp;Jiahao Guo","doi":"10.1016/j.dendro.2025.126402","DOIUrl":"10.1016/j.dendro.2025.126402","url":null,"abstract":"<div><div>The alpine treeline ecotone is highly sensitive to climate change, and global warming will influence both the recruitment of the populations at the upper elevation limit and the position of the treeline. In this study, two vertical sample transects were set up on the northern slope of Taibai Mountain, the highest peak in the Qinling Mountains. Using the \"tree rings + plot survey\" method, we statistically analyzed the population characteristics of <em>Larix chinensis</em>, population recruitment, and the spatiotemporal changes in the treeline position. The results indicate differences in the growth of Larix chinensis trees and population recruitment across the vertical sample transects on different slopes, but both populations exhibit growth. Population recruitment of <em>Larix chinensis</em> is closely correlated with temperature, particularly during the growing season from March to April. Additionally, the rate of population growth is synchronized with the reconstructed temperature of the Qinling Mountains and the Northern Hemisphere. Over the past century, the treelines at the two sample transects on Taibai Mountain have shown an upward trend, rising by 23.2 m and 16.3 m, respectively. Although the climbing distances differ, both transects show rapid elevation gains during two relatively warm periods: the 1940s-1960s and 1980s-2000s.</div></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"94 ","pages":"Article 126402"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144913834","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}
引用次数: 0
A semi-automatic protocol for delineating internal stem features from moisture-preserved discs using X-ray computed tomography 用x射线计算机断层扫描描绘湿气保存的椎间盘内部茎部特征的半自动方案
IF 2.3 3区 农林科学
Dendrochronologia Pub Date : 2025-12-01 Epub Date: 2025-08-26 DOI: 10.1016/j.dendro.2025.126397
Chien Chen , Astor Toraño Caicoya , Eva Hufnagel , Joelle Claußen , Thomas Malzer , Stefan Gerth , Enno Uhl , Hans Pretzsch
{"title":"A semi-automatic protocol for delineating internal stem features from moisture-preserved discs using X-ray computed tomography","authors":"Chien Chen ,&nbsp;Astor Toraño Caicoya ,&nbsp;Eva Hufnagel ,&nbsp;Joelle Claußen ,&nbsp;Thomas Malzer ,&nbsp;Stefan Gerth ,&nbsp;Enno Uhl ,&nbsp;Hans Pretzsch","doi":"10.1016/j.dendro.2025.126397","DOIUrl":"10.1016/j.dendro.2025.126397","url":null,"abstract":"<div><div>Accurate delineations of pith positions, tree-ring boundaries, and sapwood areas are essential for understanding tree growth dynamics, dendrochronology, and tree physiological mechanisms. While X-ray imaging has been exploited for wood specimens, few standardized and open-source methods are available. We present a supportive semi-automatic protocol, integrating free software, R and ImageJ, for delineating pith, tree rings, and sapwood areas of moisture-preserved stem discs with relatively high pixel resolution (150 µm). The protocol, documented on GitHub, integrates automated algorithms with interactive interfaces from ImageJ for manual corrections, providing a flexible and user-friendly framework. Pith position is determined by circularly fitting most-inner tree ring boundaries from edge-detection algorithms. This unique position is then used for cleaning edge detection results, supporting the two-dimensional grouping of tree ring segments. The Sapwood area is delineated by the Gaussian blur filter and interactive threshold interface. We tested the protocol on images of 15 moisture-preserved stem discs from three species (<em>Picea abies</em> (L.) H. KARST., <em>Pinus sylvestris</em> L., and <em>Larix decidua</em> MILL.). Our research demonstrated reliable accuracy, achieving an average mean error of 0.54 ± 0.42 mm for pith detection, 0.66 ± 1.72 mm for tree-ring boundaries, and 0.68 ± 1.23 mm for sapwood boundaries, offering support for manual delineations. While the method reliably supports analyses for coniferous species, challenges remain for ring-porous species, which require further advancements. The study serves as a milestone toward the future development of mobile X-ray systems for living trees in forest environments, offering a standardized and adaptable approach for advancing dendrology and wood science.</div></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"94 ","pages":"Article 126397"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144916950","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}
引用次数: 0
Cistercian heritage in Pelplin, Poland. Dendrochronological dating of the covers of medieval codices 波兰佩尔普林的西多会遗产。中世纪抄本封面的树木年代测定
IF 2.3 3区 农林科学
Dendrochronologia Pub Date : 2025-12-01 Epub Date: 2025-10-25 DOI: 10.1016/j.dendro.2025.126439
Barbara Gmińska-Nowak , Juliusz Raczkowski , Ewa Chlebus , Karl-Uwe Heussner
{"title":"Cistercian heritage in Pelplin, Poland. Dendrochronological dating of the covers of medieval codices","authors":"Barbara Gmińska-Nowak ,&nbsp;Juliusz Raczkowski ,&nbsp;Ewa Chlebus ,&nbsp;Karl-Uwe Heussner","doi":"10.1016/j.dendro.2025.126439","DOIUrl":"10.1016/j.dendro.2025.126439","url":null,"abstract":"<div><div>Wood was used as boards for codices throughout the Middle Ages. The boards provided excellent protection for the vulnerable pages of the codices and, together with the fastenings attached to them, prevented the parchment folios from deforming due to changes in relative humidity. Our research aimed to verify the dating of four codices from the collection of the Diocesan Library in Pelplin (Poland) and to assess their integrity. In doing so, we compared the dating results of the wood used for binding with information derived from such fields as materials science, book technology and paleography. We also analysed decoration, texts, and historical written sources. We examined four manuscripts written between the 12th and 14th centuries. Two codices, namely <em>Petrus Lombardus, Commentaria in Epistolas Pauli</em> PL-Pe 4(8) and <em>Processionale cisterciense</em> PL-Pe 156(204), were bound on beech boards. The other two – <em>Homiliarium</em> PL-Pe 1(2) and <em>Biblia sacra</em> PL-Pe 11(25) – were bound using oak boards. The dendrochronological research revealed that the binding of the manuscript <em>Petrus Lombardus, Commentaria in Epistolas Pauli</em>, written in the 13th century, preserved the original cover boards. The binding, however, had been refurbished at least twice. The last repair was most likely done in Pelplin at the end of the 15th century. As for the three other manuscripts (composite codices), we established the circumstances in which the codices were rebound: they were all rebound in Pelplin in the 14th century using new boards. This means that the Cistercian workshop in Pelplin began rebinding codices no later than the 14th century. In addition, our study shows the variety of wood used and indicate the geographical sources of wood supply.</div></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"94 ","pages":"Article 126439"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145415956","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}
引用次数: 0
Shrub-ring reconstruction of precipitation in the southeast of Tengger Desert, northwest China and its relationship with dust storm events 腾格里沙漠东南部降水的灌木环重建及其与沙尘暴事件的关系
IF 2.3 3区 农林科学
Dendrochronologia Pub Date : 2025-12-01 Epub Date: 2025-10-06 DOI: 10.1016/j.dendro.2025.126426
Ai-Jun Ding , Sheng-Chun Xiao , Xiao-Mei Peng , Quan-Yan Tian
{"title":"Shrub-ring reconstruction of precipitation in the southeast of Tengger Desert, northwest China and its relationship with dust storm events","authors":"Ai-Jun Ding ,&nbsp;Sheng-Chun Xiao ,&nbsp;Xiao-Mei Peng ,&nbsp;Quan-Yan Tian","doi":"10.1016/j.dendro.2025.126426","DOIUrl":"10.1016/j.dendro.2025.126426","url":null,"abstract":"<div><div>The transition from spring to summer marks the peak season for sandstorms in northern China, primarily driven by limited precipitation. However, a lack of long-term instrumental data and short monitoring records has impeded a comprehensive understanding of historical precipitation changes in arid desert regions. In this study, we reconstructed the April-May total precipitation history (1915–2017) using shrub ring data from two sites located on the southeastern edge of the Tengger Desert. Since 1915, the region has experienced four major drought periods (the 1920s, 1937–1962, the 1970s, and the 2000s) and one wet period (1983–1991). The reconstructed series shows a significant negative correlation with the variation in the number of dust storm days in China from March to May. Notably, the drought years of 1957, 1973, 2000–2001, and 2006, which were accompanied by frequent dust storm events, correspond closely with the reconstructed data. This alignment suggests that other identified years, including 1917, 1937, 1940–1942, 1951, and 1953, likely also experienced frequent dust days.</div></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"94 ","pages":"Article 126426"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145362139","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}
引用次数: 0
Climatic influences on annual and intra-annual xylem anatomical traits of four coniferous tree species in the central Hengduan Mountains, Southwest China 气候对横断山中部四种针叶树一年生和年内木质部解剖特征的影响
IF 2.3 3区 农林科学
Dendrochronologia Pub Date : 2025-12-01 Epub Date: 2025-08-26 DOI: 10.1016/j.dendro.2025.126401
Ju-Mei Zhang , Zaw Zaw , Pei-Li Fu , Shankar Panthi , Jambay Dema , Tong-Liang Xu , Hui Zhang , Achim Bräuning , Ze-Xin Fan
{"title":"Climatic influences on annual and intra-annual xylem anatomical traits of four coniferous tree species in the central Hengduan Mountains, Southwest China","authors":"Ju-Mei Zhang ,&nbsp;Zaw Zaw ,&nbsp;Pei-Li Fu ,&nbsp;Shankar Panthi ,&nbsp;Jambay Dema ,&nbsp;Tong-Liang Xu ,&nbsp;Hui Zhang ,&nbsp;Achim Bräuning ,&nbsp;Ze-Xin Fan","doi":"10.1016/j.dendro.2025.126401","DOIUrl":"10.1016/j.dendro.2025.126401","url":null,"abstract":"<div><div>Quantitative wood anatomy (QWA) provides valuable insights into the mechanisms underlying the responses of tree physiological processes to climate. Yet, the influence of climatic factors on the wood anatomical traits of coniferous tree species in the Hengduan Mountains remains poorly understood. This study investigated xylem anatomical traits (cell wall thickness, CWT; lumen area, LA) in four dominant coniferous species (<em>Abies georgei</em>, <em>Larix potaninii</em> var. <em>macrocarpa</em>, <em>Picea brachytyla</em>, and <em>Pinus densata</em>) from the subalpine forests of the central Hengduan Mountains. Using standard QWA protocols, we established chronologies for CWT and LA at both annual and intra-annual scales. Correlation analyses revealed that these xylem anatomical traits are significantly influenced by temperature and moisture conditions during early-to-peak growing season. Specifically, CWT is primarily constrained by low temperatures, while LA is limited by water availability. Responses of anatomical traits to climate factors exhibit multi-decadal scale instability, with LA showing increasing sensitivity to moisture variations in recent decades, likely associated with intensified drought stress under a warming climate. Furthermore, xylem anatomical responses to climate factors varied among the four species. CWT showed the strongest climatic sensitivity in <em>A. georgei</em>, LA responses were most prominent in <em>A. georgei</em> and <em>P. densata</em>, while both traits responded weakly in <em>L. potaninii</em> and <em>P. brachytyla</em>, reflecting their divergent adaptive strategies to habitat heterogeneity.</div></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"94 ","pages":"Article 126401"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144913833","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}
引用次数: 0
Subtropical humid savannas of northwestern Uruguay: Annual growth and climate variability in native species of Neltuma Raf. 乌拉圭西北部的亚热带湿润稀树草原:土属植物的年生长和气候变化。
IF 2.3 3区 农林科学
Dendrochronologia Pub Date : 2025-12-01 Epub Date: 2025-09-05 DOI: 10.1016/j.dendro.2025.126404
Serrana Ambite , María Eugenia Ferrero , Ariel Muñoz , Christine Lucas
{"title":"Subtropical humid savannas of northwestern Uruguay: Annual growth and climate variability in native species of Neltuma Raf.","authors":"Serrana Ambite ,&nbsp;María Eugenia Ferrero ,&nbsp;Ariel Muñoz ,&nbsp;Christine Lucas","doi":"10.1016/j.dendro.2025.126404","DOIUrl":"10.1016/j.dendro.2025.126404","url":null,"abstract":"<div><div>Dendrochronological data in diverse regions is more available each year, yet subtropical humid climates remain under-represented. This study addresses the dendrochronological potential of native species <em>Neltuma affinis</em> and <em>Neltuma nigra</em>, in subtropical humid savannas of northwestern Uruguay. Three ring-width chronologies from three sites are presented, using 80 series and 41 trees. Annual growth between 1901 and 2008 was compared to climate variability including precipitation, maximum temperature, Standardized Precipitation-Evaporation Index (SPEI), Southern Annular Mode and the South American Drought Atlas (SADA). Chronologies displayed an Expressed Population Signal ranging from 0.82 to 0.93. Growth was positively correlated with precipitation for the two <em>N. affinis</em> chronologies located at 39–62 masl (r = 0.30***; r = 0.37***), and negatively correlated for the <em>N. nigra</em> chronology located at 7–27 masl (r = -0.30**)<em>.</em> Similarly, both <em>N. affinis</em> chronologies had a positive correlation with SPEI (r = 0.29**; r = 0.41***) and a negative correlation with maximum temperature (r = -0.31***; r = -0.48***), while a negative correlation with SPEI (r = -0.21**) and a positive correlation with maximum temperature (r = 0.23**) was found for <em>N. nigra</em>. Species-specific soil preferences may influence these contrasting responses, where <em>N. affinis</em> populations thrive in drainable soils and <em>N. nigra</em> occurs exclusively in flood-prone halomorphic soils, highlighting the role of topography in growth response to climate. This study contributes new data to the growing South American dendrochronological network, enhancing our understanding of growth drivers in savanna woodlands in Uruguay and similar subtropical humid climates.</div></div>","PeriodicalId":50595,"journal":{"name":"Dendrochronologia","volume":"94 ","pages":"Article 126404"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096381","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}
引用次数: 0
Growth of Tamarix ramosissima Ledeb. is benefitting from the recent climate change at the southern Tarim basin, northwest China 柽柳生长发育的研究。中国西北部塔里木盆地南部最近的气候变化带来了什么好处
IF 2.3 3区 农林科学
Dendrochronologia Pub Date : 2025-12-01 Epub Date: 2025-10-08 DOI: 10.1016/j.dendro.2025.126427
Maierdang Keyimu , Yanying Qi , Jianhua Peng , Yesi Zhao , Fanjiang Zeng
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