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Relationships between structural indices and conventional stand attributes in an old-growth forest in Southeast Europe
ID
Keren, Srdjan
(
Author
),
ID
Svoboda, Miroslav
(
Author
),
ID
Janda, Pavel
(
Author
),
ID
Nagel, Thomas Andrew
(
Author
)
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MD5: 9FEE65C4AC33E55A734E6107A247CB53
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https://www.mdpi.com/1999-4907/11/1/4
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Abstract
Structural indices are often proposed as guiding measures for increasing structural heterogeneity. However, few studies have examined the association between such indices and conventional stand attributes. The primary objectives of this study were to evaluate changes in structural heterogeneity and tree species diversity at different plot sizes and to quantify the relationships between conventional stand attributes (mean tree diameter, absolute tree density, basal area, species proportion) and structural indices in a mixed old-growth forest in Southeast Europe. Paired tests were used to identify significant changes in structural heterogeneity with increased plot area, while the relationships between stand attributes and analyzed indices (Gini, diameter differentiation, species mingling, and Shannon’s index) were evaluated with Pearson’s correlations. The index values of Gini, diameter differentiation, and tree species mingling were rather stable with the increase of plot size, whereas tree species diversity increased significantly with the increase of plot area from 200 m$^2$ to 1500 m$^2$. The measures of tree species mingling and tree species diversity were strongly associated with each other, while their association with diameter variability was weak to moderately strong. Tree species mingling index was strongly associated with the changes in tree species proportions. However, conventional stand attributes were generally not strongly correlated with the examined indices. For restoring and maintaining old-growth characteristics, forest managers may use structural indices to increase small-scale structural heterogeneity, tree species mingling, and diversity, but only as an additional set of measures, not as surrogates for conventional stand attributes.
Language:
English
Keywords:
diameter variability
,
species mingling
,
old-growth forest
,
plot size
,
tree species diversity
,
quantified relationships
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
BF - Biotechnical Faculty
Publication status:
Published
Publication version:
Version of Record
Year:
2019
Number of pages:
13 str.
Numbering:
Vol. 11, iss. 1, art. 4
PID:
20.500.12556/RUL-114216
UDC:
630*2
ISSN on article:
1999-4907
DOI:
10.3390/f11010004
COBISS.SI-ID:
5595046
Publication date in RUL:
19.02.2020
Views:
1060
Downloads:
462
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Record is a part of a journal
Title:
Forests
Shortened title:
Forests
Publisher:
MDPI
ISSN:
1999-4907
COBISS.SI-ID:
3872166
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:
01.01.2020
Secondary language
Language:
Slovenian
Keywords:
pragozdovi
,
sestojna struktura
,
bukev
,
jelka
,
smreka
Projects
Funder:
Other - Other funder or multiple funders
Project number:
CZ.02.1.01/0.0/0.0/16_019/0000803
Acronym:
EVA 4.0
Funder:
Other - Other funder or multiple funders
Funding programme:
Czech Republic, MSMT
Project number:
LTC17055
Funder:
EC - European Commission
Funding programme:
ForestValue ERA-NET
Name:
Innovative forest MAnagEment STrategies for a Resilient biOeconomy under climate change and disturbances
Acronym:
I-MAESTRO
Funder:
Other - Other funder or multiple funders
Funding programme:
National Science Centre in Poland (NCN)
Funder:
Other - Other funder or multiple funders
Funding programme:
Slovenian Ministry of Education, Science and Sport (MIZS)
Funder:
EC - European Commission
Funding programme:
H2020
Project number:
773324
Name:
Innovating forest-based bioeconomy
Acronym:
ForestValue
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