Basal area growth response of Scots pine to drainage: An analysis using a mixed-effects modelling approach

Potapov, Aleksei; Mehtätalo, Lauri; Kiviste, Andres; Metslaid, Sandra; Kaart, Tanel; Stanturf, John A.; Hordo, Maris

doi:10.1016/j.foreco.2023.120825

Cited by 1 publication

(1 citation statement)

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“…The water table level was higher at the Sph and CP sites, which limits oxygen availability for roots and impairs tree growth [7]. Enhanced tree growth and yield as a result of drainage has been reported in previous studies [42,43], but the results for these parameters vary between study sites [44]. In order to make generalized predictions and numerical estimates of additional growth induced by drainage in peatland forests, further studies with an expanded network of sample plots are needed due to various factors, such as ditch network design, site and environmental conditions, and stand history.…”

Section: Discussionmentioning

confidence: 78%

Effects of Drainage on Carbon Stock in Hemiboreal Forests: Insights from a 54-Year Study

Dubra,

Samariks,

Līcīte

et al. 2023

Sustainability

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In the Northern Hemisphere, forests play an important role in carbon storage. During the past few decades in the eastern Baltic and Nordic regions, forest drainage has been a common occurrence, which also has an effect on carbon stock. Most of the studies on this issue were carried out in boreal zones and were focused on short-term effects. Thus, our aim was to evaluate the long-term (after 54 years) effect of drainage on carbon stock (CS) changes in organic soil (Fibric histosols) in hemiboreal forests. Three forest types were selected in drained (Myrtillosa turf. mel (Mmel)) and undrained (Caricoso–phragmitosa (CP) and Sphagnosa (Sph)) parts of the same area. Surface level changes, soil penetration resistance, and soil and tree biomass carbon stock were assessed to evaluate the drainage effect. Drainage caused an average surface level drop of 25 cm, but did not deplete the soil carbon pool, resulting in significantly and substantially higher (2 to 6 times) tree biomass carbon stock. The drainage of organic soils in managed wet forests leads to an increased long-term contribution to climate change mitigation, thus such areas should be established or maintained in conjunction with areas that maximize other ecosystem services to ensure the sustainability of forest landscapes.

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