Estimation of nutrient removals in stem-only and whole-tree harvesting of Scots pine, Norway spruce, and birch stands with generalized nutrient equations

Palviainen, Marjo; Finér, Leena

doi:10.1007/s10342-011-0567-4

Cited by 70 publications

(45 citation statements)

References 57 publications

(78 reference statements)

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“…The share of thicker roots within the cylinders is expected to be small and their decomposition is very slow (Palviainen et al, 2010;Palviainen and Finér, 2012). Fine root decomposition experiments for the above fractions were carried out in Kambja; remaining mass M t at time t (year) as the fraction of the absolute initial amount M 0 of detached roots was described by the following equation:…”

Section: Kambjamentioning

confidence: 99%

Carbon budgets in fertile silver birch (Betula pendula Roth) chronosequence stands

Varik

Kukumägi

Aosaar

et al. 2015

Ecological Engineering

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Section: Kambjamentioning

confidence: 99%

Carbon budgets in fertile silver birch (Betula pendula Roth) chronosequence stands

Varik

Kukumägi

Aosaar

et al. 2015

Ecological Engineering

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“…Apart from acting as a physical barrier, logging residues represent a significant nutrient pool in coniferous forests (Weetman and Webber 1972;Palviainen and Finér 2011) from which nutrients are released (Johansson 1994;Hyvönen et al 2000). Water collected below logging residues on a regeneration area in Finland had higher concentrations of organic N, PO 4 3-, Ca 2+ , Mg 2+ and K + compared to incoming precipitation, while the concentrations of inorganic N generally were of similar magnitude (Wall 2008).…”

Section: Introductionmentioning

confidence: 99%

Soil and soil-water chemistry below different amounts of logging residues at two harvested forest sites in Sweden

Ring¹,

Högbom²,

Nohrstedt³

et al. 2015

Silva Fenn.

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Logging residues (LR),i.e. tops, branches, and needles, are increasingly being harvested for energy production in Fennoscandia. These residues are temporarily piled on site awaiting transport. This study was undertaken to investigate effects on the soil and soil-water chemistry below different amounts of LR at two recently harvested coniferous sites in Sweden. Seven treatments were included and the studied amounts of LR ranged from no LR left on the ground to four times the estimated LR amount of the harvested stands. Two treatments included eight times the estimated LR amount of the harvested stands but here the LR were removed after 7 or 20 weeks. Soil-water samples were collected during the first six or seven growing seasons. Effects of treatment were detected in the soil water for 11 chemical variables at the northern site, and for the NO and Cl concentrations at the southern site. The strongest response was generally found in the treatment with four times the estimated LR amount, for which the highest concentrations were recorded in most cases. In the first three seasons, the water flux through the LR decreased with an increasing amount of residue. Effects on the exchangeable store of Ca in the mor layer and the upper 20 cm of the mineral soil was detected at both sites. At the northern site, the weight of the remaining LR, ground vegetation and all other material above the mor layer in the treatments with two and four times the estimated LR amount was roughly twice the corresponding weights at the southern site seven years after treatment. Although strong effects on the soil-solution chemistry were detected at one of the study sites, in the treatments corresponding to two and four times the estimated logging residue amount, the effect on the leaching from an entire regeneration area is likely to be relatively small given the percentage of the area hosting these logging residue amounts (ca. 20% after stem-only harvesting and 9% after fuel-adapted felling). 3--2+

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“…Unless whole-tree harvesting yielded the largest removal in this study, removing this forest biomass out of the forest stand influenced later forest growth and decreased the profitability of forest management and further increased the stumpage price. The reason for decreased profitability is due to nutrient loss from whole tree harvesting (Palviainen and Finér 2012), which is already included in the MOTTI stand simulator´s growth models. In addition, the whole-tree supply chain was, in fact, the most expensive option of the alternative supply chains, because of the low bulk density of forwarding and transporting whole trees.…”

Section: Discussionmentioning

confidence: 99%

First-thinning harvesting alternatives for industrial or energy purposes based on regional Scots pine stand simulations in Finland

Karttunen¹,

Laitila²,

Ranta³

2016

Silva Fenn.

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Highlights• Small-diameter delimbed wood from Scots pine stands delivered directly for energy use was the most cost-efficient option in terms of the total supply-chain cost in comparison with corresponding industrial use or a whole-tree supply chain for energy use.• Forest-management and harvesting decisions influenced the removal of forest biomass and stumpage price as well as the total supply-chain costs for forest biomass.• The greatest cost-reduction potential (10.0%, 4.00 € m -3 ) was achieved for the delimbed energy wood's supply chain in the regional case of South Savo in eastern Finland. AbstractCombining research into forest management stand conditions and wood supply chain processes has been missing from earlier forestry studies. There is a clear need to develop more cost-efficient small-diameter wood production, harvesting and transportation methods from first thinning, which could be used for either industrial or energy wood purposes. This study considers the total cost for small-diameter wood originating from young Scots pine (Pinus sylvestris L.) dominated stands. Pine pulpwood is the most harvested and most used roundwood assortment, use of which is expected to rise following new pulp-mill investments in Finland. In addition, utilisation of smalldiameter trees directly for energy purposes has been increasing steadily in recent years. The aim of the study was to determine the cost-reduction potential of alternative forest management options and supply chains for small diameter-wood in the regional case of South Savo in eastern Finland. The total costs of three distinct scenarios were studied on the basis of forest management, firstthinning harvesting methods, and transportation: 1) industrial wood, 2) delimbed energy wood, and 3) whole trees for energy purposes. The cost-reduction potential for energy-wood supply chains from first thinning was compared to the industrial supply chain. Small-diameter delimbed wood delivered straight for energy purposes was found to be the most cost-efficient as far as the total cost of the supply chain is concerned. More cost-efficient small-diameter wood processes can be found by linking forest stand simulations with supply chain analysis.

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Estimation of nutrient removals in stem-only and whole-tree harvesting of Scots pine, Norway spruce, and birch stands with generalized nutrient equations

Cited by 70 publications

References 57 publications

Carbon budgets in fertile silver birch (Betula pendula Roth) chronosequence stands

Carbon budgets in fertile silver birch (Betula pendula Roth) chronosequence stands

Soil and soil-water chemistry below different amounts of logging residues at two harvested forest sites in Sweden

First-thinning harvesting alternatives for industrial or energy purposes based on regional Scots pine stand simulations in Finland

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