{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T04:56:38Z","timestamp":1781585798226,"version":"3.54.5"},"reference-count":43,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T00:00:00Z","timestamp":1781568000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Plant Sci."],"abstract":"<jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>\n                      <jats:italic>Abies fanjingshanensis<\/jats:italic>\n                      is an endangered relic conifer endemic to Fanjing Mountain in Guizhou Province, Southwest China. Its sparse population, limited regenerative capacity, and fragile habitat underscore the urgent need for evidence-based conservation strategies.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In this study, dendrochronological methods were applied to quantify radial growth dynamics, identify climatic constraints, and reconstruct disturbance history.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The mean radial growth rate of\n                      <jats:italic>Abies fanjingshanensis<\/jats:italic>\n                      was 1.439 mm yr-1. Tree growth exhibited a significant negative correlation with June temperature and a positive correlation with the drought index (scPDSI) from July to September (\n                      <jats:italic>p<\/jats:italic>\n                      &amp;lt; 0.05), indicating that both high summer temperature and water deficit constrain growth, with moisture availability as the dominant limiting factor during the growing season. Disturbance reconstruction revealed three major events, a pronounced growth release in the early 1960s, likely triggered by widespread canopy mortality following the extreme drought of the late 1950s, and two growth suppression periods occurred in the early 1970s and around the turn of the 20th century.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>\n                      Notably, radial growth has declined significantly over the past decade, accompanied by increased tree mortality, suggesting an emerging vulnerability of this species to ongoing climatic warming and drying. These findings highlight the critical role of hydroclimatic stress in regulating growth and survival of\n                      <jats:italic>Abies fanjingshanensis<\/jats:italic>\n                      . Reconstructing its growth and disturbance history provides key insights into population health and resilience, and offers a robust scientific basis for developing targeted conservation and management strategies under future climate change.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fpls.2026.1868379","type":"journal-article","created":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T04:27:29Z","timestamp":1781584049000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Growth history revealed by tree rings provides clues for the conservation of an endangered subtropical tree species"],"prefix":"10.3389","volume":"17","author":[{"given":"Hengfeng","family":"Jia","sequence":"first","affiliation":[{"name":"Guizhou Academy of Forestry","place":["Guiyang, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanbing","family":"Yang","sequence":"additional","affiliation":[{"name":"Guizhou Academy of Forestry","place":["Guiyang, Guizhou, China"]},{"name":"Guizhou Fanjingshan Forest Ecosystem Observation and Research Station","place":["Jiangkou, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiangwen","family":"Hou","sequence":"additional","affiliation":[{"name":"Guizhou Fanjingshan Forest Ecosystem Observation and Research Station","place":["Jiangkou, Guizhou, China"]},{"name":"Administration Bureau of Fanjing Mountain National Nature Reserve","place":["Jiangkou, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haibo","family":"Li","sequence":"additional","affiliation":[{"name":"Guizhou Fanjingshan Forest Ecosystem Observation and Research Station","place":["Jiangkou, Guizhou, China"]},{"name":"Administration Bureau of Fanjing Mountain National Nature Reserve","place":["Jiangkou, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qifang","family":"Li","sequence":"additional","affiliation":[{"name":"Guizhou Fanjingshan Forest Ecosystem Observation and Research Station","place":["Jiangkou, Guizhou, China"]},{"name":"Administration Bureau of Fanjing Mountain National Nature Reserve","place":["Jiangkou, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chongyi","family":"Yang","sequence":"additional","affiliation":[{"name":"Guizhou University","place":["Guiyang, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xufen","family":"He","sequence":"additional","affiliation":[{"name":"Meteorological Bureau of Dejiang County","place":["Dejiang, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yunli","family":"Jiang","sequence":"additional","affiliation":[{"name":"Guizhou Academy of Forestry","place":["Guiyang, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zaiqi","family":"Luo","sequence":"additional","affiliation":[{"name":"Guizhou Academy of Forestry","place":["Guiyang, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hongyan","family":"Qiu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences","place":["Beijing, China"]},{"name":"China National Botanical Garden","place":["Beijing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,6,16]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"1142","DOI":"10.1111\/nph.12102","article-title":"Nonstructural leaf carbohydrate dynamics of Pinus edulis during drought-induced tree mortality reveal role for carbon metabolism in mortality mechanism","volume":"197","author":"Adams","year":"2013","journal-title":"New Phytol."},{"key":"B2","doi-asserted-by":"publisher","first-page":"129","DOI":"10.1890\/es15-00203.1","article-title":"On underestimate of global vulnerability to tree mortality and forest die-off from hotter drought in the Anthropocene","volume":"6","author":"Allen","year":"2015","journal-title":"Ecosphere"},{"key":"B3","doi-asserted-by":"publisher","DOI":"10.3390\/f11010101","article-title":"Disturbance history and dynamics of an old-growth Nothofagus forest in southern Patagonia","volume":"11","author":"Amoroso","year":"2020","journal-title":"Forests"},{"key":"B4","doi-asserted-by":"publisher","first-page":"1188","DOI":"10.1111\/gcb.12100","article-title":"Drought\u2019s legacy: multiyear hydraulic deterioration underlies widespread aspen forest die-of and portends increased future risk","volume":"19","author":"Anderegg","year":"2013","journal-title":"Glob. 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