Tree stand development and carbon sequestration in drained peatland stands in Finland – a simulation study

Minkkinen, Kari; Laine, Jukka; Hökkä, Hannu

doi:10.14214/sf.603

Cited by 33 publications

(42 citation statements)

References 18 publications

(21 reference statements)

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“…The most frequently used indirect approach is to quantify the soil GHG fluxes using the chamber method and to relate these to the biomass production of the trees as determined by biomass functions (e.g. Marklund et al, 1989;Minkkinen et al, 2001;Jalkanen et al, 2005). The chamber technique has been shown to give different results depending on the equipment and chamber design used (Pumpanen et al, 2004;Christiansen et al, 2011).…”

Section: A Meyer Et Al: a Fertile Peatland Forestmentioning

confidence: 99%

“…6a, b: AGB inc , BGB inc ) was determined using biomass functions developed by Marklund (1988) and modified by Minkkinen et al (2001) for organic soils, based on diameter at breast height (dbh) and tree height. These parameters were measured for 134 trees from 16 circular sub-plots of 0.01 ha (in total 0.16 ha) distributed within a rectangle around the EC tower.…”

Section: Quantification Of Above-and Belowground Tree Growthmentioning

confidence: 99%

“…Since fine roots (< 1 cm) were not considered in the biomass functions by Minkkinen et al (2001), we assumed that annual fine-root production corresponded to the increment in needle biomass that was determined from the Minkkinen et al (2001) equations, which amounted to 3.6 % of the total biomass increment. This assumption was based on publications by He et al (2012) and White et al (2000) showing that the ratio between the annual C increment of fine roots and of needles ranges between 0.6 and 3.3 kg C kg C −1 for conifers.…”

Section: Quantification Of Above-and Belowground Tree Growthmentioning

confidence: 99%

“…Model uncertainty is caused by an inappropriate set of allometric functions and parameters to describe the forest stand and its species composition accurately. However, in our study, the application of the Minkkinen et al (2001) equations is the most appropriate model available. First, the equations were specifically developed for species common in Swedish forests, i.e.…”

Section: Biomassmentioning

confidence: 99%

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A fertile peatland forest does not constitute a major greenhouse gas sink

et al. 2013

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Abstract. Afforestation has been proposed as a strategy to mitigate the often high greenhouse gas (GHG) emissions from agricultural soils with high organic matter content. However, the carbon dioxide (CO 2 ) and nitrous oxide (N 2 O) fluxes after afforestation can be considerable, depending predominantly on site drainage and nutrient availability. Studies on the full GHG budget of afforested organic soils are scarce and hampered by the uncertainties associated with methodology. In this study we determined the GHG budget of a spruce-dominated forest on a drained organic soil with an agricultural history. Two different approaches for determining the net ecosystem CO 2 exchange (NEE) were applied, for the year 2008, one direct (eddy covariance) and the other indirect (analyzing the different components of the GHG budget), so that uncertainties in each method could be evaluated. The annual tree production in 2008 was 8.3 ± 3.9 t C ha −1 yr −1 due to the high levels of soil nutrients, the favorable climatic conditions and the fact that the forest was probably in its phase of maximum C assimilation or shortly past it. The N 2 O fluxes were determined by the closed-chamber technique and amounted to 0.9 ± 0.8 t C eq ha −1 yr −1 . According to the direct measurements from the eddy covariance technique, the site acts as a minor GHG sink of −1.2 ± 0.8 t C eq ha −1 yr −1 . This contrasts with the NEE estimate derived from the indirect approach which suggests that the site is a net GHG emitter of 0.6 ± 4.5 t C eq ha −1 yr −1 . Irrespective of the approach applied, the soil CO 2 effluxes counter large amounts of the C sequestration by trees. Due to accumulated uncertainties involved in the indirect approach, the direct approach is considered the more reliable tool. As the rate of C sequestration will likely decrease with forest age, the site will probably become a GHG source once again as the trees do not compensate for the soil C and N losses. Also forests in younger age stages have been shown to have lower C assimilation rates; thus, the overall GHG sink potential of this afforested nutrient-rich organic soil is probably limited to the short period of maximum C assimilation.

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Section: A Meyer Et Al: a Fertile Peatland Forestmentioning

confidence: 99%

Section: Quantification Of Above-and Belowground Tree Growthmentioning

confidence: 99%

Section: Quantification Of Above-and Belowground Tree Growthmentioning

confidence: 99%

Section: Biomassmentioning

confidence: 99%

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A fertile peatland forest does not constitute a major greenhouse gas sink

et al. 2013

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“…Many studies have been done at a stand level (Karjalainen, 1996b;Liski et al, 2001;Minkkinen et al, 2001;Pussinen et al, 2002;Spinney and Prisley, 2002), often to investigate different management regimes in detail. Studies have also been carried out at a regional level (Hoen and Solberg, 1994;Lasch et al, 1999;Lasch et al, 2002;Song and Woodcock, 2003), for countries (Turner et al, 1995;Karjalainen, 1996a;Krankina et al, 1996;Ågren and Hyvönen, 2003) or even whole continents (Myneni et al, 2001;Cannell, 2003).…”

Section: Introductionmentioning

confidence: 99%

A model for regional analysis of carbon sequestration and timber production

Backéus

Wikström

Lämås

2005

Forest Ecology and Management

107

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The greenhouse effect is one of our most severe current environmental problems. Forests make up large ecosystems and can play an important role in mitigating the emissions of CO 2 , the most important greenhouse gas. Different management regimes affect the ability of forests to sequester carbon. It is important to investigate in what way we best can use forests to mitigate the greenhouse effect. It is also important to study what effect different actions, done to increase carbon sequestration, have on other offsets from forestry, such as the harvest level, the availability of forest biofuel and economic factors.In this study, we present an optimization model for analysis of carbon sequestration in forest biomass and forest products at a local or regional scale. The model consists of an optimizing stand-level simulator, and the solution is found using linear programming. Carbon sequestration was accounted for in terms of carbon price and its value computed as a function of carbon price and the net carbon storage in the forest. The same price was used as a cost for carbon emission originating from deterioration of wood products.We carried out a case study for a 3.2 million hectare boreal forest region in northern Sweden. The result showed that 1.48-2.05 million tonnes of carbon per year was sequestered in the area, depending on what carbon price was used. We conclude that assigning carbon storage a monetary value and removal of carbon in forest products as a cost, increases carbon sequestration in the forest and decreases harvest levels. The effect was largest in areas with low site-quality classes.

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