Impact of Harvest Intensity on Long-Term Base Cation Budgets in Swedish Forest Soils

Akselsson, Cecilia; Westling, Olle; Sverdrup, Harald; Holmqvist, Johan; Thelin, Gunnar; Uggla, Eva; Malm, Gunnar

doi:10.1007/978-1-4020-5885-1_22

Cited by 37 publications

(59 citation statements)

References 10 publications

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“…However, more intensive harvesting (wholetree) will result in a higher export of nutrients (and alkalinity) from forest sites compared to the current stem-only harvesting practices, resulting in similar effects on the forest ecosystems as acidification owing to air pollutants (Olsson et al 1993;Sverdrup and Rosén 1998). Base cation budgets on a regional scale have been estimated for Finland (Joki-Heiskala et al 2003) and Sweden (e.g., Sverdrup and Rosén 1998;Akselsson et al 2007). Joki-Heiskala et al (2003) demonstrated that there would be a depletion of base cations in forest mineral soils in southern, central and northeastern Finland (40-50% of the mapping grids) under WTH in the long-term.…”

Section: Influence Of Harvesting On Recoverymentioning

confidence: 99%

Modelling the hydro-geochemistry of acid-sensitive catchments in Finland under atmospheric deposition and biomass harvesting scenarios

Aherne

Posch²,

Forsius

et al. 2008

Biogeochemistry

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Section: Influence Of Harvesting On Recoverymentioning

confidence: 99%

Modelling the hydro-geochemistry of acid-sensitive catchments in Finland under atmospheric deposition and biomass harvesting scenarios

Aherne

Posch²,

Forsius

et al. 2008

Biogeochemistry

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“…Teoballdelli et al 2009;Petersson et al 2012), the focus on precise information concerning the availability of nutrients in the biomass of forest trees (Augusto et al 2000;Aksellson et al 2007;Šrámek et al 2009) and finally, the pressure for the use of tree biomass as a renewable energy source (Freppaz et al 2004;Lambert et al 2005) are main factors that create a greater demand for the accuracy of tree biomass estimate.…”

Section: Doi: 1017221/100/2014-jfsmentioning

confidence: 99%

Models for predicting aboveground biomass of European beech (Fagus sylvatica L.) in the Czech Republic

Vejpustková¹,

Zahradník²,

Čihák³

et al. 2015

J. For. Sci.

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ABSTRACT:We developed optimal models for predicting the aboveground biomass of European beech (Fagus sylvatica L.) applicable to the national forest inventory data of the Czech Republic. The models were based on a data set of 81 beech trees collected in 19 stands that represent a wide range of stand and site conditions. The relationship between biomass and tree dimensions (diameter D, height H) was modelled using non-linear regression equations with one (D) or two (D, H) independent variables and two or three parameters (D2, DH2, DH3 models). Subsequently additional predictor variables, i.e. tree age, site index and altitude, were added to the basic models. The inclusion of tree age (T) and altitude (A) in the basic DH2 model resulted in the best model for aboveground biomass (DH2AT model). The altitude (A) and site index (S) were important predictors for stem biomass estimate (DH3AS model). Similarly, branch biomass was predicted in the best way by four-variable model DH2AS.

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“…During the 20 th century, sulfur (S) deposition, which peaked in the 1980s, was the primary source of acidification in the acidic forest soils of the northern hemisphere (van Breemen et al, 10 1984). However, now that S deposition has dropped to around the 1930s level throughout Western Europe (Bertills et al, 2007;Engardt et al, 2017), focus has shifted towards understanding forest soil dynamics in response to forest biomass production and different harvesting scenarios (Akselsson et al, 2007;Iwald et al, 2013;de Jong et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Forests that are recurrently harvested for lumber and paper production are especially susceptible to biomass-induced acidification, such as those in northern Europe. Mass balance calculations show considerable losses of base cations Ca 2+ , Mg 2+ , Na + , and K + (BC) due to forest management practices, which may have strong acidifying effects on soils of base-poor mineralogy (Akselsson et al, 2007;Iwald et al, 2013). Therefore, there is a need to develop sustainable forestry practices in which the net losses of BC are minimized to avoid acidification and long-term depletion of 20 BC (Vadeboncoeur et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Assessing the impact of acid rain and forest harvest intensity with the HD-MINTEQ model – Soil chemistry of three Swedish conifer sites from 1880 to 2080

McGivney¹,

Belyazid²,

Zetterberg³

et al. 2018

Preprint

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Abstract. Forest soils are susceptible to anthropogenic acidification. In the past, acid rain was a major contributor to soil acidification, but now that atmospheric levels of S have dramatically declined, concern has shifted towards biomass-induced 20 acidification, i.e., decreasing soil solution pH due to tree growth and harvesting events that permanently remove base cations (BC) from forest stands. We use a novel dynamic model, HD-MINTEQ, to investigate the long-term impacts of two theoretical future harvesting scenarios in the year 2020, a conventional harvest (CH, which removes stems only) and a whole-tree harvest (WTH, which removes 100% of the above-ground biomass except for stumps), on soil chemistry and weathering rates at three different Swedish forest sites (Aneboda, Gårdsjön, and Kindla). Furthermore, acidification following the harvesting events is 25 compared to the historical acidification that took place during the 20 th century due to acid rain. Our results indicate that historical acidification due to acid rain had a larger impact on pore water chemistry and mineral weathering than tree growth and CH or WTH events, at least if nitrification remained at a low level. However, compared to a no-harvest scenario (NH), WTH and CH significantly impacted soil chemistry and weathering rates. Directly after a harvesting event (CH or WTH), the soil solution pH sharply increased for 5 to 10 years before slowly declining over the remainder of the simulation (until year 2Even though the pH values in the WTH and CH scenario decreased with time as compared to NH, they did not drop to the levels observed around the peak of historic acidification (1980)(1981)(1982)(1983)(1984)(1985)(1986)(1987)(1988)(1989)(1990), indicating that the pH decrease due to tree growth and harvesting would be less impactful than that of historic atmospheric acidification. Weathering rates differed across locations and soil layers in response to historic acidification, but at several sites and layers, annual weathering rates decreased in tandem with decreasing pH, which is likely due to Al 3+ weathering brakes. Weathering rates after the harvesting scenarios in 2020 5 generally increased although the dynamics were quite different depending on the site and soil layer.

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Impact of Harvest Intensity on Long-Term Base Cation Budgets in Swedish Forest Soils

Cited by 37 publications

References 10 publications

Modelling the hydro-geochemistry of acid-sensitive catchments in Finland under atmospheric deposition and biomass harvesting scenarios

Modelling the hydro-geochemistry of acid-sensitive catchments in Finland under atmospheric deposition and biomass harvesting scenarios

Models for predicting aboveground biomass of European beech (Fagus sylvatica L.) in the Czech Republic

Assessing the impact of acid rain and forest harvest intensity with the HD-MINTEQ model – Soil chemistry of three Swedish conifer sites from 1880 to 2080

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