Increasing air humidity – a climate trend predicted for northern latitudes – alters the chemical composition of stemwood in silver birch and hybrid aspen

We studied the physicochemical properties of stemwood in saplings of silver birch ( Roth) and hybrid aspen ( L. Ã Michx.), grown for four years under artificially elevated relative air humidity (on average by 7%) in field conditions, using the Free Air Humidity Manipulation (FAHM) research facility...
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Autor*in:	Tullus, Arvo [verfasserIn] Sellin, Arne [verfasserIn] Kupper, Priit [verfasserIn] Lutter, Reimo [verfasserIn] Pärn, Linnar [verfasserIn] Jasinska, Anna [verfasserIn] Alber, Meeli [verfasserIn] Kukk, Maarja [verfasserIn] Tullus, Tea [verfasserIn] Tullus, Hardi [verfasserIn] Lõhmus, Krista [verfasserIn] Sõber, Anu [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2014

Übergeordnetes Werk:	In: Silva Fennica - Finnish Society of Forest Science, 2019, 48(2014), 4
Übergeordnetes Werk:	volume:48 ; year:2014 ; number:4

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.14214/sf.1107

Katalog-ID:	DOAJ043383491

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callnumber-first	S - Agriculture
author	Tullus, Arvo
spellingShingle	Tullus, Arvo misc SD1-669.5 misc Forestry Increasing air humidity – a climate trend predicted for northern latitudes – alters the chemical composition of stemwood in silver birch and hybrid aspen
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topic_title	SD1-669.5 Increasing air humidity – a climate trend predicted for northern latitudes – alters the chemical composition of stemwood in silver birch and hybrid aspen
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title	Increasing air humidity – a climate trend predicted for northern latitudes – alters the chemical composition of stemwood in silver birch and hybrid aspen
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title_full	Increasing air humidity – a climate trend predicted for northern latitudes – alters the chemical composition of stemwood in silver birch and hybrid aspen
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author_browse	Tullus, Arvo Sellin, Arne Kupper, Priit Lutter, Reimo Pärn, Linnar Jasinska, Anna Alber, Meeli Kukk, Maarja Tullus, Tea Tullus, Hardi Lõhmus, Krista Sõber, Anu
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title_sort	increasing air humidity – a climate trend predicted for northern latitudes – alters the chemical composition of stemwood in silver birch and hybrid aspen
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title_auth	Increasing air humidity – a climate trend predicted for northern latitudes – alters the chemical composition of stemwood in silver birch and hybrid aspen
abstract	We studied the physicochemical properties of stemwood in saplings of silver birch ( Roth) and hybrid aspen ( L. Ã Michx.), grown for four years under artificially elevated relative air humidity (on average by 7%) in field conditions, using the Free Air Humidity Manipulation (FAHM) research facility in Estonia. Altogether 91 sample trees from three experimental plots with manipulated air humidity and from three control plots were cut in the dormant season and sampled for the analysis of cellulose, hemicellulose, acid detergent lignin, macronutrients (N, P, K), ash content, density, and calorific value of wood. The analysed trees grew significantly more slowly under elevated humidity conditions, with a more pronounced effect on aspens. Significantly higher concentrations of N and P were observed in the stemwood of both aspens and birches grown under elevated humidity. This could be the result of a change in the content of living parenchyma cells and/or enhanced retranslocation of nutrients into wood parenchyma. Additionally, humidification resulted in a significantly higher concentration of cellulose and a lower concentration of hemicellulose in aspen stemwood, and in significantly lower concentrations of cellulose and K in birch stemwood. Elevated humidity did not affect lignin concentration, ash content, basic density and calorific value of stemwood. Results from the FAHM experiment suggest that the increasing air humidity accompanying global warming at northern latitudes will affect the growth and functioning of deciduous trees and forests, with obvious consequences also for forest management and industry.Betula pendulaPopulus tremulaP. tremuloides
abstractGer	We studied the physicochemical properties of stemwood in saplings of silver birch ( Roth) and hybrid aspen ( L. Ã Michx.), grown for four years under artificially elevated relative air humidity (on average by 7%) in field conditions, using the Free Air Humidity Manipulation (FAHM) research facility in Estonia. Altogether 91 sample trees from three experimental plots with manipulated air humidity and from three control plots were cut in the dormant season and sampled for the analysis of cellulose, hemicellulose, acid detergent lignin, macronutrients (N, P, K), ash content, density, and calorific value of wood. The analysed trees grew significantly more slowly under elevated humidity conditions, with a more pronounced effect on aspens. Significantly higher concentrations of N and P were observed in the stemwood of both aspens and birches grown under elevated humidity. This could be the result of a change in the content of living parenchyma cells and/or enhanced retranslocation of nutrients into wood parenchyma. Additionally, humidification resulted in a significantly higher concentration of cellulose and a lower concentration of hemicellulose in aspen stemwood, and in significantly lower concentrations of cellulose and K in birch stemwood. Elevated humidity did not affect lignin concentration, ash content, basic density and calorific value of stemwood. Results from the FAHM experiment suggest that the increasing air humidity accompanying global warming at northern latitudes will affect the growth and functioning of deciduous trees and forests, with obvious consequences also for forest management and industry.Betula pendulaPopulus tremulaP. tremuloides
abstract_unstemmed	We studied the physicochemical properties of stemwood in saplings of silver birch ( Roth) and hybrid aspen ( L. Ã Michx.), grown for four years under artificially elevated relative air humidity (on average by 7%) in field conditions, using the Free Air Humidity Manipulation (FAHM) research facility in Estonia. Altogether 91 sample trees from three experimental plots with manipulated air humidity and from three control plots were cut in the dormant season and sampled for the analysis of cellulose, hemicellulose, acid detergent lignin, macronutrients (N, P, K), ash content, density, and calorific value of wood. The analysed trees grew significantly more slowly under elevated humidity conditions, with a more pronounced effect on aspens. Significantly higher concentrations of N and P were observed in the stemwood of both aspens and birches grown under elevated humidity. This could be the result of a change in the content of living parenchyma cells and/or enhanced retranslocation of nutrients into wood parenchyma. Additionally, humidification resulted in a significantly higher concentration of cellulose and a lower concentration of hemicellulose in aspen stemwood, and in significantly lower concentrations of cellulose and K in birch stemwood. Elevated humidity did not affect lignin concentration, ash content, basic density and calorific value of stemwood. Results from the FAHM experiment suggest that the increasing air humidity accompanying global warming at northern latitudes will affect the growth and functioning of deciduous trees and forests, with obvious consequences also for forest management and industry.Betula pendulaPopulus tremulaP. tremuloides
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title_short	Increasing air humidity – a climate trend predicted for northern latitudes – alters the chemical composition of stemwood in silver birch and hybrid aspen
url	https://doi.org/10.14214/sf.1107 https://doaj.org/article/594802926518443884209fd9552bc68e https://www.silvafennica.fi/article/1107 https://doaj.org/toc/2242-4075
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author2	Sellin, Arne Kupper, Priit Lutter, Reimo Pärn, Linnar Jasinska, Anna Alber, Meeli Kukk, Maarja Tullus, Tea Tullus, Hardi Lõhmus, Krista Sõber, Anu
author2Str	Sellin, Arne Kupper, Priit Lutter, Reimo Pärn, Linnar Jasinska, Anna Alber, Meeli Kukk, Maarja Tullus, Tea Tullus, Hardi Lõhmus, Krista Sõber, Anu
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up_date	2024-07-03T17:15:36.150Z
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Increasing air humidity – a climate trend predicted for northern latitudes – alters the chemical composition of stemwood in silver birch and hybrid aspen

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