Determination of elements removal in different harvesting scenarios of Scots pine (Pinus sylvestrisL.) stands

Wegieł, A; Małek, Stanisław; Bielinis, Ernest; Grebner, Donald L.; Polowy, Krzysztof; Skonieczna, Joanna

doi:10.1080/02827581.2017.1352019

Cited by 6 publications

(5 citation statements)

References 75 publications

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“…The highest proportion of exported nutrients corresponded to P and Mg, while N, Ca and K presented rather low extraction ratios, in contrast with biomass extraction. Węgiel et al (2018), who studied nutrient removal of P. sylvestris stands in Poland, in agreement with our results, reported a lower proportion of nutrients in logs, compared to biomass, and found that the highest proportion of exported nutrients corresponded to Mg.…”

Section: Biomass Production and Nutrient Exportsupporting

confidence: 92%

“…The knowledge of the decomposition patterns of forest residues, and the factors affecting nutrient release, enables the improvement of residue management practices with the aim to optimize nutrient use (Jones et al, 1999;Tutua et al, 2008;Segura et al, 2017). This knowledge will also provide useful information to test the sustainability of these production systems, and to predict the fertilizer and amendment needs (Węgiel et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Nutrient Export with Logs, and Release from Residues, after Harvest of a Pinus taeda Plantation in Uruguay

Pino¹,

Henández²,

Arrarte³

2020

OJF

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In Uruguay, Pinus taeda is usually planted a few months after harvest of the former turn, therefore; decomposing residues represents a nutrient source for the new plantation. The aim of this study was to determine the biomass and nutrient extraction off site, following the harvest of a P. taeda plantation.Residue decomposition patterns, and nutrient release were also examined. The site will be referred as S1, corresponding to the clear cut of a 22-year-old P. taeda plantation. Before the clear cut 10 trees were harvested, and logs, branches, twigs, and needles separately weighed. Additionally, forest litter at harvest time was quantified in three different areas. To assess decomposition, mesh bags with residues were allocated in three areas over the forest litter, and samples were taken periodically for 26 months. The remaining biomass, N, P K, Ca, and Mg contents were determined in the different fractions, calculating decompositon rates. Most of the harvested biomass was removed in logs, but the proportion of nutrients exported was considerably lower. Needles showed the highest biomass loss and only 39.1% remained after 26 months, while branches presented high rates in the first two months after cut, but slower thereafter, and at the end of the study more than two thirds of the woody residues remained. Potassium was rapidly released from the residues, while Ca, and Mg, were slowly released, and there was evidence of N and P immobilization in the early stages of decomposition. It was concluded that, although a lower proportion of nutrients were exported, compared to biomass, in the long term, nutrient export with logs could be significant for the sustainability of this production system. While K release from residues did not depend on biomass decay, the slow decomposition, and release of the other nutrients, indicates that this process could have been delayed by nutrient scarcity.

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Section: Biomass Production and Nutrient Exportsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Nutrient Export with Logs, and Release from Residues, after Harvest of a Pinus taeda Plantation in Uruguay

Pino¹,

Henández²,

Arrarte³

2020

OJF

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“…Thus, many scientific studies on carbon accumulation in Scots pine stands have been carried out in multiple European countries, e.g., Belgium [17], Estonia [22], Finland [11,23], Lithuania [24], Poland [25,26] and Turkey [27][28][29][30]. Among the factors influencing carbon sequestration in pine forests, the most investigated factors are the site preparation method [31], thinning intensity [32,33] and management methods [34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Aboveground Carbon Content and Storage in Mature Scots Pine Stands of Different Densities

Wegieł¹,

Polowy²

2020

Forests

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Background and Objectives: The continuous increase in the amount of atmospheric CO2 is a factor that significantly contributes to global warming. Forests can be used to mitigate climate change by absorbing carbon and storing it. Scots pine (Pinus sylvestris L.) is the most abundant tree species in Polish forests and can substantially aid carbon accumulation. The aim of the study was to determine the carbon content in the dry mass of various parts of Scots pine trees and to evaluate the relationship between the accumulation of carbon in aboveground tree biomass and some stand parameters. Materials and Methods: The research was carried out in 20 even-aged (81–90 years old) Scots pine stands in northwestern Poland (Drawno Forest District). The densities of these stands ranged from 476 to 836 trees per hectare. The aboveground biomass was calculated as the sum of the following tree compartments: stem (wood and bark), dead branches, thick branches, thin branches and needles. The carbon content and storage in these compartments was determined. Results: The mean carbon content was lowest in stem wood (47.0%) and highest in needles (50.3%). No correlation between the stand density and the level of carbon stored in the aboveground biomass of Scots pines was found.

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“…As forests are harvested more intensively, nutrient export from the ecosystem also increases [8,18]. However, the magnitude of nutrient removal depends on the harvesting method, because nutrient concentrations differ between tree compartments [19]. Branches, needles, and tree crowns generally have higher concentrations of nutrients than the stem [13,17,20].…”

Section: Introductionmentioning

confidence: 99%

Macronutrient Stocks in Scots Pine Stands of Different Densities

Wegieł

Bielinis

Polowy

2018

Forests

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A positive nutrient balance is crucial to sustaining forest productivity. Differences in stand densities usually mean different aboveground biomass stocks and different proportions of tree compartments. These differences can be reflected in the different macronutrient stocks between stands of different densities, because various tree compartments have different element concentrations. In this study, 82-year-old stands of Scots pine were compared, and specifically, the concentrations of the elements in tree compartments and the amounts of macronutrients in aboveground biomass were compared. The nutrients considered in this study were nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. A positive correlation between stand density and the level of stored macronutrients was found for nitrogen, phosphorus, and potassium. This result means that forest managers can influence nutrient balances by regulating stand densities or by harvesting methods (SOH: stem-only harvesting or WTH: whole-tree harvesting).

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Determination of elements removal in different harvesting scenarios of Scots pine (Pinus sylvestrisL.) stands

Cited by 6 publications

References 75 publications

Nutrient Export with Logs, and Release from Residues, after Harvest of a <i>Pinus taeda</i> Plantation in Uruguay

Nutrient Export with Logs, and Release from Residues, after Harvest of a <i>Pinus taeda</i> Plantation in Uruguay

Aboveground Carbon Content and Storage in Mature Scots Pine Stands of Different Densities

Macronutrient Stocks in Scots Pine Stands of Different Densities

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Determination of elements removal in different harvesting scenarios of Scots pine (Pinus sylvestrisL.) stands

Cited by 6 publications

References 75 publications

Nutrient Export with Logs, and Release from Residues, after Harvest of a &lt;i&gt;Pinus taeda&lt;/i&gt; Plantation in Uruguay

Nutrient Export with Logs, and Release from Residues, after Harvest of a &lt;i&gt;Pinus taeda&lt;/i&gt; Plantation in Uruguay

Aboveground Carbon Content and Storage in Mature Scots Pine Stands of Different Densities

Macronutrient Stocks in Scots Pine Stands of Different Densities

Contact Info

Product

Resources

About

Nutrient Export with Logs, and Release from Residues, after Harvest of a <i>Pinus taeda</i> Plantation in Uruguay

Nutrient Export with Logs, and Release from Residues, after Harvest of a <i>Pinus taeda</i> Plantation in Uruguay