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Title: GROWTH PROPERTIES OF GREY ALDER (ALNUS INCANA (l.) MOENCH) STANDS ON DIFFERENT SOILS IN LATVIA

Year

2025

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234

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Title

GROWTH PROPERTIES OF GREY ALDER (ALNUS INCANA (l.) MOENCH) STANDS ON DIFFERENT SOILS IN LATVIA

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Authors

Aigars Indriksons; Girts Vernavs; Ieva Erdberga; Baiba Busa

DOI

10.5593/sgem2025v/3.2/s11.47

DOI Issue

10.5593/sgem2025v/3.2

ISSN

1314-2704

ISBN

978-619-7603-91-0

Language

English

Volume

Issue

3.2

Editor

• Prof. Dr. hab. oec. Baiba Rivza, LATVIA• Prof. DSc. Ildiko Tulbure, GERMANY• Prof. DSc. Oleksandr Trofymchuk, UKRAINE

Scientific Area

Forest Ecosystems and Sustainable Forestry

Abstract/ Foreword

The growth course properties of grey alder (Alnus incana (L.) Moench) on different site types are still insufficiently researched, especially, if to compare the forest and abandoned agricultural lands. Due to the species relatively high prevalence in private forest areas in Latvia, which according to the forestry statistics data, equaled 11% in 2023, it has crucial significance to the economy.
The paper analyses 40-year-old grey alder stands on abandoned agricultural land, forest land, and forests along the rivers. A total count of 44 circular sample plots, with the area 200 m² were established. Diameter and height were measured for all Ist floor trees. Wood samples were taken for the year-ring measurements and soil samples were taken from each genetic horizon at depth until 40 cm, for soil analysis. Such soil parameters as organic content of the soil, as well as, soil reaction - pH in H2O and KCl extracts, content of CaCO3, soil texture, gleyic properties, the soil type according to Latvian and World Reference Base were estimated.
When analyzing the soil physically-chemical properties in relation to the dendrometric indices of the stand (stand volume, number of trees and average tree diameter), a close correlation was found with CaCO3, organic matter content and soil pH index. The values of dendrometric indices of the stand are statistically significantly (p<0.05) higher at higher values of these soil parameters.
In the studied grey alder stands on forest and agricultural lands, the dendrometric indices of the stands do not differ statistically significantly, but the differences in increment values of these indices are statistically significant. Increment values are significantly higher in grey alder stands on agricultural lands (p<0.05).

References (click to open)

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conference

Url

https://doi.org/10.5593/sgem2025v/3.2/s11.47

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GROWTH PROPERTIES OF GREY ALDER (ALNUS INCANA (l.) MOENCH) STANDS ON DIFFERENT SOILS IN LATVIA

Proceedings Тitle

Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025

Note

25th International Multidisciplinary Scientific GeoConference SGEM 2025, 03 - 06 December, 2025

Type

Proceedings Paper

Publisher

STEF92 Technology

Series

International Multidisciplinary Scientific GeoConference-SGEM

Organization

SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.

Pages

409-416

Date

03 - 06 December, 2025

Online Source Type

website

Digital Source Type

10591

Keywords

grey alder, growth course, increment, soil properties, forest lands, agricultural lands.