The Effect of Harvest on Forest Soil Carbon: A Meta-Analysis

James, Jason; Harrison, R. B.

doi:10.3390/f7120308

Cited by 142 publications

(109 citation statements)

References 145 publications

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“…But the effects were different depending on the considered compartment: a considerable reduction was found for the forest floor carbon stock (-30%) and no significant effects were reported for mineral soil carbon stock. The same general tendency was reported by James & Harrison (2016) with a mean soil carbon stock reduction of 14.4%.…”

Section: Harvesting Operationssupporting

confidence: 71%

Forest management and carbon sequestration in the Mediterranean region: A review

et al. 2017

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Aim of study: TTo review and acknowledge the value of carbon sequestration by forest management in the Mediterranean area. Material and methods:We review the main effects of forest management by comparing the effects of silvicultural systems (even-aged vs. uneven-aged stands, coppice systems, agroforestry systems), silvicultural options (thinning, rotation period, species composition), afforestation, harvesting, fire impact or effects of shrub layer on carbon sequestration in the Mediterranean area.Main results: We illustrate as forest management can clearly improve forest carbon sequestration amounts. We conclude that forest management is an effective way to maintain and enhance high carbon sequestration rates in order to cope with climate change and provision of ecosystem services. We also think that although much effort has been put into this topic research, there are still certain gaps that must be dealt with to increase our scientific knowledge and in turn transfer this knowledge to forest practitioners in order to achieve sustainable management aimed at mitigating climate change.Research highlights: It is important to underline the importance of forests in the carbon cycle as this role can be enhanced by forest managers through sustainable forest management. The effects of different management options or disturbances can be critical as regards mitigating climate change. Understanding the effects of forest management is even more important in the Mediterranean area, given that the current high climatic variability together with historical human exploitation and disturbance events make this area more vulnerable to the effects of climate change.Additional keywords: global carbon cycle; forest sink; forest mitigation strategies; carbon sequestration potential; climate change mitigation; Mediterranean forests.

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Section: Harvesting Operationssupporting

confidence: 71%

Forest management and carbon sequestration in the Mediterranean region: A review

et al. 2017

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“…Nonetheless, in forest, the relatively high presence of aromatic C indicated a higher humification degree than prairie and reforestation. 13 C-NMR results also showed marked changes due to soil depth. In particular, the labile components such as alkyl and carboxylic C decreased with increasing depth, while the more persistent aromatic C components dominated.…”

Section: Discussionmentioning

confidence: 78%

“…Both C:N ratio and humic C (HC) content decreased with depth, showing values from 21.8 and 31.1 g kg −1 in the surface layer to 11.5 and 0.8 g kg −1 at depth (p = 0.05) (Table S2). 13 C-NMR spectra of humic substances revealed a different pattern in C with O,N-alkyl > alkyl > aromatic > carboxyl > phenolic. With respect to land use, reforestation and prairie had a higher content in O,N-alkyl C (49.43% and 46.80%, respectively) with respect to forest (39.38%) (p = 0.05) ( Table 2).…”

Section: Humic Substance Features Under Different Land Uses and Depthsmentioning

confidence: 99%

“…42 filter paper, and then through a column of Amberlite IR 120 H + form [28]. 13 C-NMR spectra were performed by dissolving ca. 300 mg of humic extract with 0.5 mL of 2 M NaOH + 1.5 mL D 2 O for one day at room temperature under N 2 .…”

Section: Laboratory Analysismentioning

confidence: 99%

“…C storage in soil ecosystems can also be affected by stand management practices and land use [12,13]. Brown and Lugo [14] showed that, following deforestation, sites lost up to 60%-70% of the initial C contained in mature forests.…”

Section: Introductionmentioning

confidence: 99%

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Land Use Affects the Soil C Sequestration in Alpine Environment, NE Italy

Pizzeghello

Francioso

Concheri

et al. 2017

Forests

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Soil carbon sequestration is strongly affected by soil properties, climate, and anthropogenic activities. Assessing these drivers is key to understanding the effect of land use on soil organic matter stabilization. We evaluated land use and soil depth influencing patterns of soil organic matter stabilization in three types of soil profiles located under the same pedogenetic matrix and alpine conditions but with different vegetation cover. The stock in soil organic carbon in the mean 0-20 cm layer increased from prairie (31.9 t ha −1 ) to prairie in natural reforestation (42 t ha −1 ) to forest (120 t ha −1 ), corresponding to increments of 1.3-fold prairie, for prairie in natural reforestation, and of 3.8-fold prairie for forest. The forest showed the highest humic carbon (21.7 g kg −1 ), which was 2.8 times greater than the prairie in natural reforestation and 4 times higher than the prairie. 13 C-NMR spectroscopic measurements suggested a different C pattern. The prairie in natural reforestation and the prairie were characterized by a higher content in O,N-alkyl C with respect to the forest. Alkyl C and aromatic C in the prairie in natural reforestation and prairie did not show relevant differences while they decreased with respect to the forest. Carboxyl and phenolic C groups were markedly higher in forest and prairie than prairie in natural reforestation. Alkyl C, carboxyl C, and phenolic C prevailed in the Ah horizons whereas aromatic C and O,N-alkyl C were dominant in the B horizons. Overall, the marked distribution of O,N-alkyl C and alkyl C in humic substances (HS) indicates a low degree of humification. Nevertheless, in forest, the relatively high presence of aromatic C designated HS endowed with a relatively high humification degree. Thus, our results might suggest that in the alpine environment of NE Italy differences in soil organic matter (SOM) stocks and characteristics are affected by land use and anthropic activities.

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Decadal‐scale changes in forest soil carbon and nitrogen storage are influenced by organic matter removal during timber harvest

Mushinski

Boutton

2017

JGR Biogeosciences

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This study investigates whether different intensities of organic matter removal associated with timber harvest influence decadal‐scale storage of soil organic carbon (SOC) and total nitrogen (TN) in the top 1 m of mineral soil 18 years postharvest in a Pinus taeda L. forest in the Gulf Coastal Plain. We quantified forest harvest‐related changes in SOC, TN, microbial biomass carbon (MBC), and nitrogen (MBN) pools (0–100 cm) in unharvested control stands and in two organic matter removal treatment stands subjected to either (i) merchantable bole/stem‐only harvest or (ii) whole‐tree harvest + forest floor removal. In addition, δ13C of SOC and δ15N of TN were measured in mineral soil to provide insights regarding mechanisms that might explain changes in SOC and TN pool sizes. Soils were sampled seasonally for 1 year. Increasing organic matter removal intensity reduced SOC, TN, MBC, and MBN relative to the unharvested control. Furthermore, soils from whole‐tree harvest + forest floor removal stands had lower δ13C and higher δ15N values, suggesting that increasing organic matter removal may decrease heterotrophic activity as well as increase rates of N loss. Seasonal variabilities in SOC and TN were correlated to changes in forest biological properties such as root biomass and forest floor mass. These results indicate that more intensive harvest methods may lead to decade‐scale decreases in SOC and TN storage in surface and subsurface soils which could influence rates of biogeochemical processes, the availability of soil nutrients, and potential forest productivity.

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The Effect of Harvest on Forest Soil Carbon: A Meta-Analysis

Cited by 142 publications

References 145 publications

Forest management and carbon sequestration in the Mediterranean region: A review

Forest management and carbon sequestration in the Mediterranean region: A review

Land Use Affects the Soil C Sequestration in Alpine Environment, NE Italy

Decadal‐scale changes in forest soil carbon and nitrogen storage are influenced by organic matter removal during timber harvest

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