Allometric equations for estimating the mass and volume of fresh assimilational apparatus of standing scots pine (Pinus sylvestris L.) trees

Turski, Mieczysław; Beker, Cezary; Kaźmierczak, Katarzyna; Najgrakowski, Tomasz

doi:10.1016/j.foreco.2008.01.028

Cited by 16 publications

(11 citation statements)

References 9 publications

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“…Most information on allometry of tree live biomass can be found in several scientific works (Tobin et al, 2006;Turski et al, 2008), but these articles do not address the aboveground live biomass of the main forest forming tree species growing within artificially created Steppe forest stands. As far as we know, studies concerning this issue are lacking.…”

Section: Discussionmentioning

confidence: 99%

Foliage biomass qualitative indices of selected forest forming tree species in Ukrainian Steppe

2017

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Sytnyk, S., Lovynska, V., Lakyda, I., 2017. Foliage biomass qualitative indices of selected forest forming tree species in Ukrainian Steppe. Folia Oecologica, 44: 38-45.Our study objective was research on the assimilation component of aboveground biomass of trees and its correlation with mensurational indices of trees (age, diameter and height) in stands of the main forest forming species in the Ukrainian Northern Steppe zone -Pinus sylvestris L. (Scots pine) and Robinia pseudoacacia L. (Black locust). The research was carried out in forest stands subordinated to the State Agency of Forest Resources of Ukraine. We used experimental data collected on sample plots established during years 2014-2016. The main research results prove that the foliage share in the tree greenery biomass structure had a wide range of values. For both investigated species, a positive correlation was found between the dry matter content in the tree foliage and the tree age, height and diameter. The foliage share in tree greenery biomass decreased with increasing mensurational index values. Correlation analysis revealed linear relationships between the mensurational indices and the discussed aboveground live biomass parameters. The closest correlation was observed between the stand age, mean stand diameter, mean stand height and dry matter content in the foliage.

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Section: Discussionmentioning

confidence: 99%

Foliage biomass qualitative indices of selected forest forming tree species in Ukrainian Steppe

2017

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“…Prosedur analisis data ini sesuai dengan yang dilakukan oleh (Tewari & Singh, 2006 (Arevalo et al, 2007;Brandeis et al, 2006;Jagodziński et al, 2018;Turski, Beker, et al, 2008;Zewdie, Olsson, & Verwijst, 2009) (Brandeis et al, 2006;Jagodziński et al, 2018;Lima et al, 2012;Zewdie et al, 2009 (Zewdie et al, 2009) Keterangan: V: volume pohon (m 3 ); D: diameter setinggi dada (cm); H: tinggi pohon (m); a, b, c: koefisien regres 2. Pemilihan calon model terbaik Pada tahap awal, keeratan hubungan antar variabel penduga volume (diameter dan tinggi pohon) dilakukan analisis dengan menggunakan korelasi pearson (Armecin & Coseco, 2012).…”

Section: Analisis Data 1 Analisis Korelasi Dan Penyusunan Model Pendunclassified

Development and Validation of Volume Prediction Model for Balangeran (Shorea balangeran (Korth.) Burck) In Central Kalimantan

Qirom

2018

JWAS

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Model penduga volume pohon harus mempunyai akurasi dan ketepatan yang tinggi sehingga pendugaan potensi tegakan menjadi tepat. Penelitian ini bertujuan mendapatkan dan melakukan validasi eksternal model penduga volume jenis Balangeran di Kalimantan Tengah. Penyusunan model penduga volume ini menggunakan 3 tahapan yakni penyusunan model dengan 52 pohon contoh, validasi model dengan 23 pohon, dan validasi eksternal dengan 10 pohon contoh. Model penduga volume pohon menggunakan model linear dan non linear dengan peubah bebas diameter, diameter dan tinggi, dan kombinasi peubah diameter dan tinggi. Kriteria pemilihan model terbaik antara lain: koefisien determinasi, simpangan relatif dan agregatif, bias, ketepatan dan akurasi dugaan, dan AIC (Akaike's Information criteriation). Hasil penelitian menunjukkan model dengan peubah bebas diameter tidak memenuhi kriteria pemilihan model terbaik (simpangan agregatif < 1 % dan simpangan relatif < 8 %). Penambahan tinggi kedalam model penduga volume meningkatkan koefisien determinasi sebesar 6,54 % dan terdapat model penduga dengan peubah diameter dan tinggi memenuhi kriteria pemilihan model terbaik. Model penduga terbaik yakni dengan koefisien determinasi (R 2) sebesar 89,77 %. Namun demikian, model penduga volume tersebut tidak dapat digunakan pada tempat tumbuh dan karakteristik tegakan yang lain. Kata kunci: volume pohon, model, Shorea balangeran, validasi, tegakan

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“…Дослідження біологічної продуктивності лісотвірних порід -складова визначення структури лісових екосистем та встановлення закономірностей їх функціонування (Lauri et al, 2014). Найважливіша характеристика продуктивності лісових екосистем -інтенсивність синтезу органічної речовини, яка залежить від структури та активності асиміляційної складової фітомаси (Bonan, 1993;Turski et al, 2008;Lakyda, 2010;Lakyda and Blishchik, 2010;Goudie et al, 2016).…”

Section: вступunclassified

Analysis of the parameters of the assimilation component of aboveground biomass of forest-forming species in the steppe zone of Ukraine

et al. 2016

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The purpose this research is to study the parameters of leaf (needle) share in the trees’ greenery fraction and the content of absolutely dry matter in fresh leaves of black locust and Scots pine. The leaf (needle) share in the trees greenery fraction and the content of absolutely dry matter were determined by their quantitative measures (weight and volume). The results of the research reveal that the leaf share in the structure of a tree’s greenery fraction has a broad range of values: 43.0–72.8% for black locust and 49.1–75.4% for Scots pine. The minimum value of this parameter was recorded for an overmature Robinia specimen of 41 years of age, while the maximum was for a 3-year-old tree. For pine trees the lowest values of the given parameter were registered for the spcimens aged 38, 49 and 84, the maximum – for 30–31-year-old trees. For both investigated species it should be noted that there is a consistent pattern indicated by the following trend line: with the increase of tree age, height and trunk diameter, there is a decrease of leaf share value in the trees’ greenery fraction. Such characteristic parameter as absolutely dry mass has a sufficient range of values from 0.321 to 0.524, with the extreme values for the trees belonging to the young stock group in the case of the black locust. The absolutely dry matter content in Scots pine needles showed a significant variability of values from 0.426 to 0.620. The trend line shows a tendency of increase in the value of absolutely dry matter mass in the leaves of both investigated species with the increase in the values of the tree taxation parameters. There is no statistically proven dependency of the parameter indicating leaf share in the trees greenery fraction on the age, trunk diameter and height of trees. The most important biometric indicator, which shows a moderate relationship with the greenery fraction of a tree is the average diameter of the trunk of model trees of the two studied species. This is confirmed by values of correlation coefficients. The indicator of greenery fraction is inversely dependent on the height, trunk diameter and tree age, i.e. the increase in the values of these parameters leads to the decrease in the share of the photosynthetic active component of trees of the studied tree species in the steppe zone. The value of leaf (needle) share in trees’ greenery fraction decreases with the increasing age, height and diameter values, which is quite natural. Correlation indices of absolutely dry matter according to age, height and diameter of sample trees have negative values, while the index of leaf (needle) share of trees’ greenery fraction has a direct correlation with all the studied influence factors.

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Allometric equations for estimating the mass and volume of fresh assimilational apparatus of standing scots pine (Pinus sylvestris L.) trees

Cited by 16 publications

References 9 publications

Foliage biomass qualitative indices of selected forest forming tree species in Ukrainian Steppe

Foliage biomass qualitative indices of selected forest forming tree species in Ukrainian Steppe

Development and Validation of Volume Prediction Model for Balangeran (Shorea balangeran (Korth.) Burck) In Central Kalimantan

Analysis of the parameters of the assimilation component of aboveground biomass of forest-forming species in the steppe zone of Ukraine

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