Modeling radial growth increment of black alder (Alnus glutionsa (L.) Gaertn.) tree

Laganis, Jana; Pečkov, Aleksandar; Debeljak, Marko

doi:10.1016/j.ecolmodel.2008.02.018

Cited by 16 publications

(22 citation statements)

References 18 publications

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“…In our case, this is particularly evident in the Orlické hory Mts., where no dependence of radial increment on the mean monthly temperature was confirmed. These findings also conform to the statement of Laganis et al (2008) that the radial growth of the black alder is relatively independent of temperature and precipitation fluctuations. For instance, human interventions in the catchment areas of the stands studied (extensive afforestation of former agricultural land and drainage of certain plots to increase their resistance) may explain some of the deviations observed in the annual ring chronology.…”

Section: Discussionsupporting

confidence: 91%

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

Vacek¹,

Vacek²,

Podrázský³

et al. 2016

Dendrobiology

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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%.

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Section: Discussionsupporting

confidence: 91%

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

Vacek¹,

Vacek²,

Podrázský³

et al. 2016

Dendrobiology

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“…The groundwater level is considered as one of the most important environmental factors that affect the annual radial increment in black alder [41,42]. The importance of this feature is also stressed by the results of our study.…”

Section: Discussionsupporting

confidence: 64%

“…The analysed alders exhibited a rather small dependence of TRW or VD on precipitation, regardless of their health status. This observation contrasts with the findings of Vacek et al [51] regarding mountains in the Czech Republic but, in turn, is supported by the statement of Laganis et al [41], who recorded that the radial growth of the black alder is relatively independent of temperature and precipitation fluctuations. In addition, Elferts et al [42] found a weak precipitation influence on alder tree-rings width in Latvia.…”

Section: Discussioncontrasting

confidence: 62%

Groundwater Level Fluctuations Affect the Mortality of Black Alder (Alnus glutinosa Gaertn.)

Tulik

Grochowina²,

Jura‐Morawiec

et al. 2020

Forests

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Since the 1990s, a decline of riparian black alder (Alnus glutinosa Gaertn.) has been observed over Europe. The fungus-like eukaryotic pathogen Phytophthora alni subsp. alni is thought to be a causal agent of this process; however, abiotic factors may also be involved. Previous studies suggest that climate conditions and, especially, depletion of groundwater level may be among the most important factors that trigger this phenomenon. We investigated the radial growth and wood vessel diameter of black alder trees of various vigour classes as well as their response to groundwater level changes to search for the link between soil water resources availability and mortality related to alder dieback. Samples were collected in the natural stand located near Sieraków village in the Kampinoski National Park, central Poland, in the area where alder dieback has been recently observed. Based on the crown defoliation level, three vigour classes (healthy, weakened, and dead trees) were distinguished. Cross sections were prepared with a sliding microtome, and Cell P image analysis software was used for the measurements. Tree-ring width (TRW) and vessel diameter (VD) were determined and correlated with the monthly values of precipitation and groundwater level. Alders of the analysed vigour classes exhibited similar patterns of TRW and VD changes over the analysis time. The narrowest tree rings were observed in weakened alders, while the largest vessels were noted in healthy trees. In the case of TRW and VD chronologies, the weakest, and hence insignificant, resemblance was found for healthy and dead trees. TRW and VD of the analysed alders were not correlated with the monthly sum of precipitation, but a negative influence of rainfall in April was observed. In turn, groundwater level had an impact on the radial growth and wood anatomical features of the analysed trees. A negative effect of the highest water table level was found for TRW of weakened and dead trees as well as for VD of healthy and weakened alders. The lowest groundwater level and the amplitude of the water table positively affected VD of the dead trees. Alder decline has a polyetiological nature, and groundwater level fluctuations are one of many factors contributing to disease development.

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“…We suggest that the growth of A. glutinosa has been affected mainly by local environmental factors, which may also have modified growth responses to key climatic variables over time. These results correspond to the assertions of Laganis et al (2008) that radial growth of A. glutinosa seemed to be relatively indifferent to temperature and precipitation fluctuations. Similarly, and in accordance with our results, Laganis et al (2008) and Levanič (1993) considered local factors, namely, water conditions (i.e., river water level), as the most important factor for the growth of A. glutinosa.…”

Section: Growth Responses Of Alnus Glutinosa To Environmental Conditionssupporting

confidence: 90%

“…The radial growth of trees responds very dynamically to changes in waterlogging (Denneler et al, 2008;Lageard and Drew, 2008). For that reason, radial increments are considered to be good indicators of disturbances of the A. glutinosa stands in individual years and, simultaneously, indirect indicators of environmental changes (Laganis et al, 2008).…”

Section: Methodsmentioning

confidence: 99%

Development of alder carr after the abandonment of wet grasslands during the last 70 years

et al. 2009

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Keywords:aerial photograph / Alnus glutinosa (L.) Gaertn. / dendrochronology / land abandonment / secondary succession / wetland Abstract • The secondary succession of wet grasslands to communities of alder carr dominated by Alnus glutinosa was recorded in different parts of Europe during the 20th century. However, knowledge of such development of alder carr remains insufficient.• The development of alder carr was reconstructed at five sites in the Czech Republic, using historical aerial photographs and methods of dendrochronology. The aims were to investigate the succession from wet grasslands to alder carr at sites previously intensively managed for agriculture and to find out the role of fluctuations in the groundwater table, caused by artificial drainage channels, in the observed stand dynamics and tree growth.• The spread of forest (i.e., an increase in forest cover) predominated until the 1970s at all sites. This trend was disrupted by a large-scale dieback of forest stands in four of the five sites after the 1970s, followed by an increase in patch heterogeneity, as indicated by landscape metrics. The radial growth increment in Alnus glutinosa has been affected predominately by local environmental factors, probably including the changing degree of waterlogging. Forest dieback was presumably connected with a lesser extent of drainage channels.• Our results indicate that observed successional pathways at sites of alder carr were probably caused by local changes in the groundwater table.Mots-clés : photographie aérienne / Alnus glutinosa (L.) Gaertn. / dendrochronologie / abandon des terres / succession secondaire / zones humides Résumé -Développement de taillis d'aunes après l'abandon des prairies humides au cours des 70 dernières années.• La succession secondaire des prairies humides en communautés de taillis d'aunes dominées par Alnus glutinosa a été enregistrée dans différentes parties de l'Europe au cours du 20 e siècle. Toutefois, la connaissance du développement de taillis d'aunes reste insuffisante.• Le développement de taillis d'aunes a été reconstruit dans cinq sites en République Tchèque, à l'aide de photographies aériennes historiques et des méthodologies de la dendrochronologie. Les objectifs étaient d'étudier la succession de prairies humides en taillis d'aunes sur des sites précédem-ment exploités intensivement par l'agriculture et de découvrir le rôle des fluctuations de la nappe phréatique, causées par le drainage artificiel des canaux, et d'observer la dynamique des peuplements et la croissance des arbres.• La progression de la forêt (c'est-à-dire, l'augmentation du couvert forestier) a prédominé jusque dans les années 1970 dans tous les sites. Cette tendance a été perturbée par un vaste dépérissement des peuplements forestiers dans quatre des cinq sites après les années 1970, suivie par une augmentation de l'hétérogénéité des bouquets d'arbres, comme indiqué par les paramètres du paysage. L'augmentation de la croissance radiale de Alnus glutinosa a été affectée principalement par les facteu...

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Modeling radial growth increment of black alder (Alnus glutionsa (L.) Gaertn.) tree

Cited by 16 publications

References 18 publications

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

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

Groundwater Level Fluctuations Affect the Mortality of Black Alder (Alnus glutinosa Gaertn.)

Development of alder carr after the abandonment of wet grasslands during the last 70 years

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