Biomass production of coppiced grey alder and the effect of fertilization

Hytönen, Jyrki; Saarsalmi, Anna

doi:10.14214/sf.1260

Cited by 17 publications

(11 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In North Central Europe (Netherlands, Northern Germany, and the Baltic States) and South Central Europe (the plains of Slovenia and Croatia), black alder represents ~5% of the forest area and forms large highly productive stands (Glavac, 1972;Roisin & Thill, 1972;Turok et al, 1996;Claessens et al, 2010). Black alder belongs to fast-growing tree species of an increasing importance, especially in Central and Northern Europe (Johansson, 1999;Uri et al, 2014;Hytönen & Saarsalmi, 2015;Vacek et al, 2016). Despite being one of the most common species in the first generation stands established by natural regeneration on more fertile sites, black alder has an increasing importance and large potential for timber production (Claessens et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Dynamic site index model and trends in changes of site productivity for Alnus glutinosa (L.) Gaertn. in southern Poland

Socha¹,

Ochał²

2017

Dendrobiology

View full text Add to dashboard Cite

Black alder is naturally widespread across all of Europe and has an increasing importance for forest ecosystems. Thanks to the considerable tolerance to adverse climatic and edaphic environmental conditions black alder is important both in open landscapes and can also be involved in the rehabilitation of disturbed soils. Assessment of site productivity is essential for providing a frame of reference for silvicultural diagnosis and prescription in order to ensure the sustainability of existing and newly established ecosystems. The most accepted method of evaluating site productivity is the site index (SI). The aim of the presented research was to develop the SI model for black alder in southern Poland. The developed SI model was used as a tool in order to test the research hypothesis assuming the increase in site productivity for black alder in southern Poland. The research material for development of SI model were stem analysis data from 180 research plots. Both, the local model parameter, which was estimated individually for every tree, and the other parameters estimated globally for the whole data set were estimated simultaneously. Changes in site productivity were analyzed on research plots and a set of 12,974 stands from the forest inventory database. Site indices calculated using the developed model are negatively correlated with age/ positively correlated with establishment year of the stands. This confirms the existence of the phenomenon of increasing site productivity for black alder. During the last century site productivity measured with site index increased on average 5 m. Therefore, black alder that belongs to the fast-growing tree species should be considered of the increasing importance for forest management.

show abstract

Section: Introductionmentioning

confidence: 99%

Dynamic site index model and trends in changes of site productivity for Alnus glutinosa (L.) Gaertn. in southern Poland

Socha¹,

Ochał²

2017

Dendrobiology

View full text Add to dashboard Cite

show abstract

“…The alder species belong among fast-growing tree species of an increasing importance in Europe in the last decades (Hytönen & Saarsalmi, 2009), especially in northern Europe and Baltic countries (Johansson, 1999;Uri et al, 2014;Hytönen & Saarsalmi, 2015). They are characterised by a considerable tolerance to adverse climatic and edaphic environmental conditions, yet they constitute stands producing good-quality timber on sites where other commercially important tree species are limited by unsuitable conditions for successful growth and development due to their ecological valence (Bugala & Pittner, 2010;Tobita et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Structural diversity and production of alder stands on former agricultural land at high altitudes

Vacek¹,

Vacek²,

Podrázský³

et al. 2016

Dendrobiology

View full text Add to dashboard Cite

Abstract:The paper deals with the structural diversity and production of a less frequently studied type of alder stands originated on former agricultural lands in the 1950s, established partly by plantation and partly by natural succession in the area of the Krkonoše Mts. and the Orlické hory Mts. (Czech Republic). Four permanent research plots (PRP) were established at sites where Black alder (Alnus glutinosa L. Gaertn.) and Grey alder (Alnus incana L. Moench.) naturally occurs, each plot of 0.25 ha in size. The aim of the study was to evaluate the structure and development of the alder stands with respect to biodiversity, horizontal, vertical and species structure, diameter increment with emphasis on climate factors, and the quantity and quality of timber production. The results document low diversification of the studied stands in the PRPs. The horizontal structure is defined as random and clumped at sites at the highest altitude with high water table. The number of living trees with DBH ≥ 4 cm ranges between 556 to 828 trees ha -1 with the relative stand density index (SDI) 0.67-0.77. The stand volume ranges from 247 to 393 m 3 ha -1, and decreases with higher altitudes. Low temperatures is limiting factor for radial growth in the high mountain areas, respectively low precipitation in the middle lands. Owing to a rather specific site character, as especially the spring area, the stands exhibit only average production, but the production quality is generally high. The quality timber is suitable for industrial use; the rot-affected trunk base parts usable for fuel represent only approximately 16%.

show abstract

“…From an ecological perspective, alder plays a crucial role in ecosystem processes and nitrogen fixation (Vogel et al 1997;Roy et al 2007;Aosaar et al 2013;Uri et al 2014), which is facilitated by symbiotic bacteria of the genus Frankia on the roots (Oliveira et al 2005;Hytönen & Saarsalmi 2015). This tree species also contributes considerable biodiversity greatl by providing habitats for specific fauna and flora (Dussart 1999; Kamocki et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Dendrochronological data from twelve countries proved definite growth response of black alder (Alnus glutinosa [L.] Gaertn.) to climate courses across its distribution range

Vacek

Cukor

et al. 2022

Central European Forestry Journal

View full text Add to dashboard Cite

Black alder (Alnus glutinosa [L.] Gaertn.) is an important component of riparian and wetland ecosystems in Europe. However, data on the growth of this significant broadleaved tree species is very limited. Presently, black alder currently suffers from the pathogen Phytophthora and is particularly threatened by climate change. The objective of this study was to focus on the impact of climatic variables (precipitation, temperature, extreme climatic events) on the radial growth of alder across its geographic range during the period 1975–2015. The study of alder stands aged 46–108 years was conducted on 24 research plots in a wide altitude range (85–1015 m) in 12 countries of Europe and Asia. The most significant months affecting alder radial growth were February and March, where air temperatures are more significant than precipitation. Heavy frost and extreme weather fluctuations in the first quarter of the year were the main limiting factors for diameter increment. Within the geographical setting, latitude had a higher effect on radial growth compared to longitude. However, the most important variable concerning growth parameters was altitude. The temperature’s effect on the increment was negative in the lowlands and yet turned to positive with increasing altitude. Moreover, growth sensitivity to precipitation significantly decreased with the increasing age of alder stands. In conclusion, the growth variability of alder and the number of negative pointer years increased with time, which was caused by the ongoing climate change and also a possible drop in the groundwater level. Riparian alder stands well supplied with water are better adapted to climatic extremes compared to plateau and marshy sites.

show abstract

Biomass production of coppiced grey alder and the effect of fertilization

Cited by 17 publications

References 34 publications

Dynamic site index model and trends in changes of site productivity for Alnus glutinosa (L.) Gaertn. in southern Poland

Dynamic site index model and trends in changes of site productivity for Alnus glutinosa (L.) Gaertn. in southern Poland

Structural diversity and production of alder stands on former agricultural land at high altitudes

Dendrochronological data from twelve countries proved definite growth response of black alder (Alnus glutinosa [L.] Gaertn.) to climate courses across its distribution range

Contact Info

Product

Resources

About