{"id":7389,"date":"2025-04-25T13:57:14","date_gmt":"2025-04-25T10:57:14","guid":{"rendered":"https:\/\/jfsi.ru\/?p=7389"},"modified":"2025-06-10T09:56:27","modified_gmt":"2025-06-10T06:56:27","slug":"8-1-2025-novichonok_et_al","status":"publish","type":"post","link":"https:\/\/jfsi.ru\/en\/8-1-2025-novichonok_et_al\/","title":{"rendered":"PHYTOMASS DISTRIBUTION AND CONTENT OF NITROGEN AND CARBON IN NEEDLES OF SCOTS PINE IN THE MIDDLE TAIGA IN THE REPUBLIC OF KARELIA"},"content":{"rendered":"<p><a style=\"color: #000000;\" href=\"http:\/\/jfsi.ru\/wp-content\/uploads\/2025\/04\/8-1-2025- Novichonok_et_al.pdf\"><img loading=\"lazy\" class=\"size-full wp-image-1122 alignright\" src=\"http:\/\/jfsi.ru\/wp-content\/uploads\/2018\/10\/pdf.png\" alt=\"\" width=\"32\" height=\"32\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\"><strong>E. V. Novichonok<sup>*<\/sup>, N. A. Galibina, K. M. Nikerova<\/strong><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\"><strong>\u00a0<\/strong><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\"><em>Institute of Forest KarRC RAS<\/em><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\"><em>Pushkinskaya st. 11, Petrozavodsk, Republic of Karelia, 185910, Russia<\/em><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\">*E-mail: enovichonok@inbox.ru<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\">Received: 24.09.2024<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\">Revised: 17.02.2025<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\">Accepted: 14.03.2025<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">Monitoring the biomass and productivity of woody plants is one of the highest priorities in forest ecology due to their role in the global carbon balance. We evaluated annual needle production, distribution of needle biomass by age, and nitrogen and carbon content in needles of <em>Pinus sylvestris <\/em>trees growing in pine stands of different ages and in different forest conditions. The highest values of annual needle production of the dominant element were observed in 180-190-year-old bilberry pine forests on sandy and sandy loam podzols. The dominant element in clearcuts had a significantly lower annual production, amounting to 11.5%, compared to 40-50-, 80-100-, and 180-190-year-old stands. The proportion of needle biomass of different ages in total needle biomass per tree differed between young trees on clearcuts (up to 10 years old) and trees of greater age (40-50-, 80-100- and 180-190-year-old trees). In young trees at the clearcut, almost 90% of the needle mass comes from annual and current-year needles, whereas in older trees, it\u2019s around 50%. These data should be considered when building models of gas exchange and carbon fluxes in stands of different ages due to the dependence of photosynthesis rate on the age of needles. The carbon content of needles increased with increasing tree age. The discussion focuses on the significance of accurately estimating carbon content in biomass to improve the estimation of carbon stocks in phytocenosis.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\"><strong>\u00a0<\/strong><\/span><span style=\"font-family: 'times new roman', times, serif;\"><strong>\u041a<\/strong><strong>eywords:<\/strong><em> Scots pine, nitrogen, carbon, needle biomass fraction, forest conditions, pine forests of different ages<\/em><\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\"><strong>REFERENCES<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">Albrektson A., Needle litterfall in stands of <em>Pinus sylvestris<\/em> L. in Sweden, in relation to site quality, stand age and latitude, <em>Scandinavian Journal of Forest Research<\/em>, 1988, Vol. 3, Issue 1\u20134, pp. 333\u2013342.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">Anderson-Teixeira K. 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Nikerova \u00a0 Institute of Forest KarRC RAS Pushkinskaya st. 11, Petrozavodsk, Republic of Karelia, 185910, Russia *E-mail: enovichonok@inbox.ru Received: 24.09.2024 Revised: 17.02.2025 Accepted: 14.03.2025 Monitoring the&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[37],"tags":[],"_links":{"self":[{"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/posts\/7389"}],"collection":[{"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/comments?post=7389"}],"version-history":[{"count":6,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/posts\/7389\/revisions"}],"predecessor-version":[{"id":7461,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/posts\/7389\/revisions\/7461"}],"wp:attachment":[{"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/media?parent=7389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/categories?post=7389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/tags?post=7389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}