{"id":3683,"date":"2019-07-31T09:00:37","date_gmt":"2019-07-31T07:00:37","guid":{"rendered":"https:\/\/ist.blogs.inra.fr\/afs\/?p=3683"},"modified":"2019-07-30T16:56:33","modified_gmt":"2019-07-30T14:56:33","slug":"increasing-temperatures-over-an-18-year-period-shortens-growing-season-length-in-a-beech-fagus-sylvatica-l-dominated-forest","status":"publish","type":"post","link":"https:\/\/ist.blogs.inrae.fr\/afs\/2019\/07\/31\/increasing-temperatures-over-an-18-year-period-shortens-growing-season-length-in-a-beech-fagus-sylvatica-l-dominated-forest\/","title":{"rendered":"Increasing temperatures over an 18-year period shortens growing season length in a beech (Fagus sylvatica L.)-dominated forest"},"content":{"rendered":"<script type='text\/javascript' src='https:\/\/d1bxh8uas1mnw7.cloudfront.net\/assets\/embed.js'><\/script><p align=\"justify\"><a href=\"https:\/\/ist.blogs.inra.fr\/afs\/wp-content\/uploads\/sites\/5\/2019\/07\/Hurdebise-et-al-a.png\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-3684 alignleft\" src=\"https:\/\/ist.blogs.inra.fr\/afs\/wp-content\/uploads\/sites\/5\/2019\/07\/Hurdebise-et-al-a-300x200.png\" alt=\"\" width=\"308\" height=\"205\" srcset=\"https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2019\/07\/Hurdebise-et-al-a-300x200.png 300w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2019\/07\/Hurdebise-et-al-a-768x511.png 768w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2019\/07\/Hurdebise-et-al-a-1024x681.png 1024w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2019\/07\/Hurdebise-et-al-a-640x426.png 640w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2019\/07\/Hurdebise-et-al-a.png 1650w\" sizes=\"auto, (max-width: 308px) 100vw, 308px\" \/><\/a>Using long-term measurements in a mature beech (<em>Fagus sylvatica<\/em> L.)-dominated forest located in east Belgium, this paper showed that spring and autumn temperature increases during the last two decades led to an earlier end and a shortening of the growing season. These phenological shifts impact negatively but not significantly the forest annual net ecosystem productivity.<\/p>\n<p align=\"justify\"><strong>Context<\/strong> The mechanisms controlling temperate forest phenology are not fully understood nor are the impacts of climate change and the consequences for forest productivity.<br \/>\n<strong>Aims<\/strong> The aim of this paper is to contribute to the understanding of how temperate forest phenology and net ecosystem productivity (NEP) interplay and respond to temperature and its evolution.<br \/>\n<strong>Methods<\/strong> Indicators of leaf phenology and productivity dynamics at the start and the end of the growing season, as well as combinations of these indicators (length of the growing season), were derived from a long-term (1997\u20132014) dataset of eddy covariance and light transmission measurements taken over a mature beech-dominated temperate forest.<br \/>\n<strong>Results<\/strong> The start and the end of the growing season were correlated to spring (and autumn, for the end) temperatures. Despite no trends in annual average temperatures being detected during the observation period, April and November temperatures significantly increased. As a result, an earlier but slower start and an earlier end, inducing a shorter length of the growing season, were observed over the studied period. The first shift positively impacts the mixed forest NEP but is mainly related to the presence of conifers in the subplot. The earlier end of the growing season, more related to beech phenology, negatively impacts the forest NEP. Overall, these two effects partially compensate each other, leading to a non-significant impact on NEP.<br \/>\n<strong>Conclusion<\/strong> Increasing temperatures over the 18-year studied period shortened the growing season length, without affecting significantly the mixed forest NEP. However, as beeches are only affected by the earlier end of the growing season, this suggests a phenologically driven beech productivity reduction in the forest.<\/p>\n<p><strong>Keywords<\/strong><br \/>\nNet ecosystem productivity, <em>Fagus sylvatica<\/em> L., Climate change, Phenological indicators<\/p>\n<div class='altmetric-embed' data-badge-type='donut' data-doi='10.1007\/s13595-019-0861-8'  style='float: right; ' ><\/div>\n<p><strong>Publication<\/strong><br \/>\nHurdebise, Q., Aubinet, M., Heinesch, B. et al. Annals of Forest Science (2019) 76: 75. <a href=\"https:\/\/doi.org\/10.1007\/s13595-019-0861-8\">https:\/\/doi.org\/10.1007\/s13595-019-0861-8<\/a><\/p>\n<p>For the read-only version of the full text: <a href=\"https:\/\/rdcu.be\/bMqyI\">https:\/\/rdcu.be\/bMqyI<\/a><\/p>\n<p align=\"justify\"><strong>Data availability<\/strong><br \/>\nThe datasets analyzed during the current study are available on the FLUXNET repository (De Ligne et al. 1996-2014) at <a href=\"https:\/\/doi.org\/10.18140\/FLX\/1440130\">https:\/\/doi.org\/10.18140\/FLX\/1440130<\/a> except the PAR data which are available on Mendeley data repository (Hurdebise et al. 2019) at <a href=\"https:\/\/doi.org\/10.17632\/fw929dkt9m.2\">https:\/\/doi.org\/10.17632\/fw929dkt9m.2<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Using long-term measurements in a mature beech (Fagus sylvatica L.)-dominated forest located in east Belgium, this paper showed that spring and autumn temperature increases during the last two decades led to an earlier end and a shortening of the growing season. These phenological shifts impact negatively but not significantly the forest annual net ecosystem productivity. [&hellip;]<\/p>\n","protected":false},"author":106,"featured_media":3686,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,110,15],"tags":[],"class_list":["post-3683","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-article-type","category-data-in-repository","category-research-paper","cat-14-id","cat-110-id","cat-15-id","has_thumb"],"_links":{"self":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/3683","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/users\/106"}],"replies":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/comments?post=3683"}],"version-history":[{"count":0,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/3683\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/media\/3686"}],"wp:attachment":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/media?parent=3683"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/categories?post=3683"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/tags?post=3683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}