Evaluating diameter distribution series of small-leaved lime (Tilia cordata Mill.) in forest stands

The paper provides studies on the structure of planted small-leaved lime (Tilia cordata Mill.) in the conditions of the Bashkir Cis-Urals. This work aimed to analyze their assortment by diameters and compile appropriate tables. This is the first study of lime for this region. The results of the stud...

Full description

Saved in:
Bibliographic Details
Published in:Plant methods 2021-04, Vol.17 (1), p.45-45, Article 45
Main Authors: Gabdelkhakov, Aydar, Rakhmatullin, Zagir, Martynova, Maria, Fazlutdinov, Ilyas, Mullagaleev, Ilnur
Format: Article
Language:English
Subjects:
Asymmetry
Average diameter
Coefficient of variation
Forest plantations
Fruits
Lime
Lime fruit
Pearson curves
Physiological aspects
Plantations
Planting density
Small-leaved lime
Software
Statistical indicators
Tilia cordata
Trees
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The paper provides studies on the structure of planted small-leaved lime (Tilia cordata Mill.) in the conditions of the Bashkir Cis-Urals. This work aimed to analyze their assortment by diameters and compile appropriate tables. This is the first study of lime for this region. The results of the study are based on data from 69 temporary sample plots. Stands are represented by trees of 11-79 years old, not affected by thinning. They belong to the I-III growth classes and the most common goutweed forests. It was found, that small-leaved limes have a specific structure-coefficient of diameter variation in stands decreases with a higher average diameter, reaching 26 and 16% at 28 cm with thin and dense initial planting, respectively. The variability of tree diameters is related to the average stand diameter and is due to the initial density of the grown plantations. Correlations between the coefficients of asymmetry and excess with age and the average diameter was revealed. The verification of theoretically calculated frequencies of distribution series to empirically observed frequencies showed a discrepancy in 29 and 19% of the total number, respectively. For the remaining series of distributions, the scale and shape parameters of the Weibull function were modeled using the average, minimum and maximum diameters, standard deviation, coefficients of asymmetry and excess. This made it possible to develop stand tables for small-leaved limes depending on the average diameter.
ISSN:1746-4811
1746-4811
DOI:10.1186/s13007-021-00741-6