Litterfall and the effects of thinning and seed cutting on carbon input into the soil in Scots pine stands in Turkey

Çömez, Aydın; Tolunay, Doğanay; Güner, Şükrü Teoman

doi:10.1007/s10342-018-1148-6

Cited by 25 publications

(10 citation statements)

References 44 publications

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“…These results coincide with reports by other studies that showcase thinning's ability to significantly decrease litterfall production in Spain [20] in Scots pine (Pinus sylvestris) stands, and in Aleppo pine (Pinus halepensis) stands [22]. Çömezet al [48] stated that thinning practices have different effects on litterfall in Scots pine forests in Turkey, with regard to the age of the stands. Particularly, it was reported that thinning (20-25% removal of the initial basal area) significantly reduced the litterfall production in mature stands, due to the higher stand density in contrast with overmatured stands.…”

Section: Thinning Effect On Litterfall Productionsupporting

confidence: 90%

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Effects of Forest Thinning on Soil Litter Input Nutrients in Relation to Soil CO2, CH4, and N2O Fluxes in Greece

Doukalianou¹,

Spyroglou²,

Orfanoudakis

et al. 2022

Atmosphere

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The contribution of litterfall (dead leaves, twigs, etc., fallen to the ground) and forest floor (organic residues such as leaves, twigs, etc., in various stages of decomposition, on the top of the mineral soil) is fundamental in both forest ecosystem sustainability and soil greenhouse gases (GHG) exchange system with the atmosphere. The effect of different thinning treatments (control-no thinning, traditional-low thinning, selective-intense thinning) on litterfall and forest floor nutrients, in relation to soil GHG fluxes, is analyzed. After one year of operations, thinning had a significant seasonal effect on both litterfall and forest floor, and on their nutrient concentrations. The intense (selective) thinning significantly affected the total litterfall production and conifer fractions, reducing them by 46% and 48%, respectively, compared with the control (no thinning) sites. In the forest floor, thinning was able to significantly increase the Fe concentration in traditional thinning by 59%, and Zn concentration in the intense thinning by 55% (compared with control). Overall, litterfall acted as a bio-filter of the gasses emitting from the forest floor, acting as a GHG regulator.

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Section: Thinning Effect On Litterfall Productionsupporting

confidence: 90%

“…Reference [24] reported that thinning significantly changed litterfall production, only for the first year after operation. Additionally, reference [48] claimed that the reduction of litterfall production is attributed to the biomass decrease by thinning rather than altering the litterfall turnover process.…”

Section: Thinning Effect On Litterfall Productionmentioning

confidence: 99%

Effects of Forest Thinning on Soil Litter Input Nutrients in Relation to Soil CO2, CH4, and N2O Fluxes in Greece

Doukalianou¹,

Spyroglou²,

Orfanoudakis

et al. 2022

Atmosphere

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“…In this study, we stated that the DBH-dependent biomass variations make the existing biomass allometric equations developed for large-DBH trees inappropriate to apply for trees with smaller DBH values (e.g., understory tree regeneration) for biomass estimation. One possible reason is the inevitable inaccuracy/error in estimating foliage and branch biomass due to differences in growth rates among tree species [20]. For example, in a study measuring the DBH-dependent biomass of the aboveground components in a forest plantation, foliage and branch biomass decreased and stem biomass increased with the increase in the DBH [38].…”

Section: Discussionmentioning

confidence: 99%

“…At an early developmental stage, canopy biomass increases rapidly because of fast foliage growth to enhance photosynthesis. Once the canopy closure is reached, however, the proportion of stem biomass increases [16,20].…”

Section: Discussionmentioning

confidence: 99%

“…Forest trees show different biomass distribution patterns depending on stand age and forest strata [19]. At an early developmental stage, forest trees show a rapid increase in foliage biomass for rapid canopy formation, but the proportion of stem biomass increases once the canopy closure is reached [16,20]. As a result, the biomass of understory vegetation also varies widely depending on the dominant species, stand age, and stand density, and forest site conditions such as soil and climate characteristics [21,22].…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Allometric Equation and Destructive Measurement of Carbon Storage of Naturally Regenerated Understory in a Pinus rigida Plantation in South Korea

Han

Park

2020

Forests

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The forest understory plays an important role in the carbon and nutrient cycling and forest stability, but cost-efficient quantification of its biomass remains challenging. Most of the existing biomass allometric equations have been developed and designed only for mature forest trees (i.e., Diameter at breast height (DBH) ≥ 10 cm), and those for trees with DBH less than 10 cm are not readily available. In this study, we compared the biomass by plant component (i.e., foliage, branch, and stem) measured by a destructive method with those estimated by the existing biomass allometric equations for understory trees with DBH less than 10 cm in a Pinus rigida plantation. We also developed an allometric biomass equation for the identified understory tree species, namely, Quercus variabilis, Quercus acutissima, Quercus mongolica, Quercus serrata, and Carpinus laxiflora. The estimated biomass using allometric equations for foliage, branch, and stem was lower than the values obtained using the destructive method by 64%, 41%, and 18%, respectively. The biomass allometric equations developed in this study showed high coefficients of determination (mean R2 = 0.970) but varied depending on species and tree part (range: 0.824–0.984 for foliage, 0.825–0.952 for branch, and 0.884–0.999 for the stem, respectively). The computed biomass of the understory vegetation was 22.9 Mg ha−1, representing 12.0% of the total biomass of the P. rigida plantation. The present study demonstrates that understory trees with DBH less than 10 cm account for a considerable portion of carbon stock in forest ecosystems, and therefore suggests that more biomass allometric equations should be optimized for small-DBH trees to improve forest carbon stock estimation.

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Short-term effects of pre-commercial thinning on carbon cycling in fertile birch (Betula sp.) stands in hemiboreal Estonia

Aosaar,

Buht,

Erik

et al. 2023

Eur J Forest Res

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Litterfall and the effects of thinning and seed cutting on carbon input into the soil in Scots pine stands in Turkey

Cited by 25 publications

References 44 publications

Effects of Forest Thinning on Soil Litter Input Nutrients in Relation to Soil CO2, CH4, and N2O Fluxes in Greece

Effects of Forest Thinning on Soil Litter Input Nutrients in Relation to Soil CO2, CH4, and N2O Fluxes in Greece

Comparison of Allometric Equation and Destructive Measurement of Carbon Storage of Naturally Regenerated Understory in a Pinus rigida Plantation in South Korea

Short-term effects of pre-commercial thinning on carbon cycling in fertile birch (Betula sp.) stands in hemiboreal Estonia

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