Short-time effect of harvesting methods on soil respiration dynamics in a beech forest in southern Mediterranean Italy

Abstract

(2) CO2 fluxes from soil, together with soil water content and temperature have been measured over one solar year in an even-aged beech forest (Fagus Sylvatica L.) in southern Italy. We investigated the effects of three different harvested biomass removal treatments (traditional, innovative, unharvested control) on soil respiration (Rs) in three plots from May 2014 to April 2015, with the aim to evaluate the effects of such silvicultural practices on the CO2 respired from the forest floor. The influence of soil temperature and soil moisture on soil respiration was also analysed. Rs showed large variations among the treatments, with the innovative treatment resulting in significantly higher soil respiration than control and traditional treatments. There were no significant differences in soil temperature between the treatments, whereas soil water content was statistically different only in the innovative treatment. The study showed that the mean soil respiration increased with thinning intensity, confirming that after harvesting, residues remaining on the forest floor and decomposing roots may contribute to raise soil respiration, due to the higher microbial activity.

The relationships between selected soil properties and caesium-137 identify organic carbon, nitrogen and water soluble phenols as indicators of soil erosion processes in different forest stands

“…No significant differences were found between the dendrometric parameters in these areas before the silvicultural interventions (Picchio et al 2016;Coletta et al 2017). The three treatment sites were similar as slope, orientation and soil types.…”

Drivers of the Distribution of Soil Organic Carbon Stocks in the Topsoil Under Pinus Hartwegii Lindl. Forest, Along an Elevation Gradient in Central Mexico

“…Microsite conditions are also altered when canopy gaps increase the light incidence and temperature on the forest oor (Coletta et al 2017;Bom m et al 2020). This increases litter decomposition rate and, hence, the heterotrophic respiration and the continuous C-CO 2 outputs from the soil (Six et al 2004;Coletta et al 2017) for a long time (up to 45 years) after logging (Chiti et al 2016).…”

“…Logging modi es litter quality input to the soil by creating canopy gaps that promote secondary succession in the understory, i.e., it increases the presence of easily decomposable herbs and shrubs (less recalcitrance), limiting SOM pools (Cepáková and Frouz 2015;Bom m et al 2020). Microsite conditions are also altered when canopy gaps increase the light incidence and temperature on the forest oor (Coletta et al 2017;Bom m et al 2020). This increases litter decomposition rate and, hence, the heterotrophic respiration and the continuous C-CO 2 outputs from the soil (Six et al 2004;Coletta et al 2017) for a long time (up to 45 years) after logging (Chiti et al 2016).…”

Mengurangi keterbukaan hutan melalui teknik pemananenan kayu yang tepat di hutan alam

“…Peningkatan vegetasi berarti penambahan sumber bahan oganik yang mempunyai kemampuan untuk memperbaiki sifat fisika dan kimia tanah. Colleta et al (2017) menyatakan bahwa setelah © 2021, Program Studi Ilmu Lingkungan Sekolah Pascasarjana UNDIP pemanenan respirasi tanah meningkat dengan intensitas penipisan, juga mencegah penguapan air dari tanah sehingga menyebabkan aktivitas mikroba yang lebih tinggi. Informasi ini berguna bagi pengelola hutan dalam memprediksi konsekuensi pengelolaan hutan mengingat keluarnya CO2 dari permukaan tanah.…”