Short-term effects of thinning on soil CO2, N2O and CH4 fluxes in Mediterranean forest ecosystems

Mazza, Gianluigi; Agnelli, A.; Cantiani, Paolo; Chiavetta, Ugo; Doukalianou, Foteini; Kitikidou, Kyriaki; Milios, Elias; Orfanoudakis, Michail; Radoglou, K.; Lagomarsino, Alessandra

doi:10.1016/j.scitotenv.2018.09.241

Cited by 46 publications

(32 citation statements)

References 58 publications

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“…In 2015, the LIFE FoResMit project was developed applying two different silvicultural treatments (traditional thinning and selective thinning) aimed to improve the stand characteristics and the forest multifunctionality of Monte Morello (Mazza et al 2019). The two silvicultural treatments were applied on a pilot area of 10.08 ha (Table 1): (1) selective thinning (4.73 ha): in this thinning the choice of the trees to be cut is based on a positive selection (thinned 30-40% of basal area).…”

Section: Study Areamentioning

confidence: 99%

Assessing the forest-wood chain at local level: A Multi-Criteria Decision Analysis (MCDA) based on the circular bioeconomy principles

et al. 2019

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Section: Study Areamentioning

confidence: 99%

Assessing the forest-wood chain at local level: A Multi-Criteria Decision Analysis (MCDA) based on the circular bioeconomy principles

et al. 2019

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“…It covers an area of about 2400 ha, in an elevation range of 100 to 630 m. In the periurban forest there are reforestations -plantations that began in 1936 and lasted up to 2007. However, most of them were established before 1973 [9,10]. The reforestations cover a great part of the peri-urban forest.…”

Section: Study Areamentioning

confidence: 99%

“…In the context of The FoResMit Project (LIFE14 CCM/ IT/905 "Recovery of degraded coniferous Forests for environmental sustainability Restoration and climate change Mitigation"), new selective silvicultural treatments were developed in Monte Morello peri-urban forest in Italy and in the peri-urban forest of Xanthi in Greece and were applied together with the traditional silvicultural approaches [9,10]. In Xanthi, the proposed silvicultural treatments target in the fast conversion of the peri-urban forest in a broadleaf forest or in a mixed conifer-broadleaf forest, and thus are expected to exhibit high intensity.…”

Section: Introductionmentioning

confidence: 99%

New Silvicultural Treatments for Conifer Peri-Urban Forests Having Broadleaves in the Understory - The First Application in the Peri-Urban of Xanthi in Northeastern Greece

Milios

Kitikidou

Radoglou

2019

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Background and Purpose: In Greece, forest practice did not develop special silvicultural treatments for planted conifer peri-urban forests where broadleaf trees appear as natural regeneration in the understory. The aims of this study are: a) to analyze the new proposed selective silvicultural treatments for the planted peri-urban forest of Xanthi and for analogous planted conifer forests, where broadleaf trees are naturally established in the understory b) to check the research hypothesis that the new selective silvicultural treatments exhibited higher intensity in terms of the basal area of cut trees, compared to that of traditional treatments in the studied peri-urban forest. Materials and Methods: In the traditional treatments, in the pine overstory cuttings, apart from the dead trees, mainly the malformed, damaged, suppressed and intermediate trees were cut. In the lower stories, the goal of the thinning was the more or less uniform distribution of broadleaf trees. In the proposed selective treatments, the main aim of pine cuttings is to release the broadleaf formations growing in the lower stories, while the treatments of the broadleaf trees will be a form of “positive selection” thinning. Plots were established in areas where the two types of treatments were going to be applied. In each plot, tree measurements and a classification of living trees into crown classes took place. After the application of the treatments the characteristics of cut trees were recorded. Results: In the established plots, before the cuttings (and thinning), total basal area was not statistically significantly different between the two types of treatments. In selective treatments, the basal area of all cut trees was statistically significantly higher than that of the results of traditional treatments. In the broadleaf cut trees there were statistical differences in the ratios of dominant, intermediate and suppressed trees between the two silvicultural approaches. Conclusions: The research hypothesis was verified. The intensity of treatments in terms of the basal area of cut trees was higher in the selective approach, compared to the traditional treatments in the Xanthi peri-urban forest. However, the overstory cutting intensity of the selective treatments depends on the spatial distributions and densities of broadleaved and conifer trees. In the broadleaf trees, the different objectives of the two types of treatments resulted in thinning with different qualitative characteristics. The proposed silvicultural treatments will accelerate the conversion of peri-urban conifer forests having an understory of broadleaf trees into broadleaved forests, or into mixed forests of conifers and broadleaf trees.

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“…At present, extensive research has been conducted on soil C dynamics in natural ecosystems (e.g., forests, grasslands, and wetlands) and arti cial ecosystems (e.g., urban green spaces and farmlands), mainly focusing on soil respiration rate, ecological stoichiometric characteristics, C and nitrogen distribution patterns, and C mineralization and turnover characteristics (Hu et al 2019;Mazza et al 2019;Sharma et al 2011;Veldkamp 1993). As an important component of terrestrial ecosystems, desert ecosystems are characterized by homogeneous vegetation, low coverage, and severe erosion.…”

Section: Introductionmentioning

confidence: 99%

Changes in soil carbon sequestration and emission in different succession stages of biological soil crusts in a sand-binding area

Wang

Liu

Zhang³

et al. 2021

Preprint

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Background We investigated the spatio-temporal dynamics of soil carbon dioxide (CO2) and soil methane (CH4)-flux during biological soil crust (BSC) deposition in a sand-binding area in the eastern Chinese Hobq Desert. The trends in soil organic carbon (C) content and density were analyzed during this process. The sampling sites comprised a mobile dune (control) and those with algal, lichen, and moss crust-fixed sands. The desert soil CO2 and CH4-flux, temperature, and water content were measured from May to October in 2017 and 2018. Simultaneously, organic C content and density were measured and analyzed by stratification. Results The spatio-temporal variation in desert soil CO2-flux was apparent. The average CO2- fluxes in the control, algal, lichen, and moss sites were 1.67, 2.61, 5.83, and 6.84 mmol·m− 2·h− 1, respectively, during the growing season, and the average CH4-fluxes in the four sites were − 1.13, -1.67, -3.66, and − 3.77 µmol·m− 2·h− 1, respectively. Soil temperature was significantly positively correlated with CO2-flux but could not influence CH4 absorption, and C flux had minimal correlation with soil water content. The soil total organic C density at all sites was significantly different and decreased as follows: moss > lichen > algal > control; moreover, it decreased with soil depth at all sites. The accumulation of desert soil organic C could enhance soil C emissions. Conclusion In a semi-arid deserts, artificial planting could promote sand fixation and BSC succession; therefore, increasing the C storage capacity of desert soils and decreasing soil C emissions could alter the C cycle pattern in desert ecosystems. Soil temperature is the major factor controlling desert soil CO2 flux and vegetation restoration, and BSC development could alter the response patterns of C emissions to moisture conditions in desert soils. The results provide a scientific basis for studying the C cycle in desert ecosystems.

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Short-term effects of thinning on soil CO2, N2O and CH4 fluxes in Mediterranean forest ecosystems

Cited by 46 publications

References 58 publications

Assessing the forest-wood chain at local level: A Multi-Criteria Decision Analysis (MCDA) based on the circular bioeconomy principles

Assessing the forest-wood chain at local level: A Multi-Criteria Decision Analysis (MCDA) based on the circular bioeconomy principles

New Silvicultural Treatments for Conifer Peri-Urban Forests Having Broadleaves in the Understory - The First Application in the Peri-Urban of Xanthi in Northeastern Greece

Changes in soil carbon sequestration and emission in different succession stages of biological soil crusts in a sand-binding area

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