Carbon balance in forest mineral soils in Latvia modelled with Yasso07 soil carbon model

Bārdulis, A.; Lupikis, Ainars; Stola, Jeļena

doi:10.22616/rrd.23.2017.004

Cited by 3 publications

(2 citation statements)

References 31 publications

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“…Series of studies have also advanced the same understanding following simulation in CENTURY and YASSO models where they have indicated that accumulation of soil organic pools were driven by changes in litter inputs, rate of decomposition, management regimes, root activity, stand growth rates among others. Specifically, plantation management practices like pruning, thinning, liming, drainage, clear felling and timber harvesting among others could also bring the variations on the amount of C as leftovers would decompose differently depending on the site characteristics and on the litter quality of the material [14,[21][22][23][24].…”

Section: Discussionmentioning

confidence: 99%

Soil Carbon Sequestration Differentials among Key Forest Plantation Species in Kenya: Promising Opportunities for Sustainable Development Mechanism

Oeba¹,

Otor²,

Kung’u³

et al. 2018

AFF

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Soil organic carbon (SOC) contributes to the productivity of forests and enhances carbon sink in forest ecosystem. However, the available data on forest based carbon projects among African countries that have ratified Kyoto Protocol and are party to United Nations Framework Convention on Climate Change (UNFCCC) shows little emphasis on SOC, deadwood and litter. Kenya, for example, has piloted five afforestation and reforestation Clean Development Mechanism (AR-CDM) activities in government forests of which none addresses SOC, and yet studies elsewhere have shown that forest soils consist about 73 % of global carbon storage. This study therefore, sought to determine soil carbon sequestration differentials among selected key forest plantations in Kenya and their future implications on sustainable development mechanism. Soils were sampled at 0-20, 20-50 and 50-80 cm depth from Pinus patula, Cupressus lusitanica, Juniperus procera and Eucalyptus saligna/grandis plantations in Central Kenya for analysis of carbon, soil pH, nitrogen, phosphorous and potassium. The litterfall collected from each of these forest plantations were analysed for nitrogen and carbon. The Pinus patula plantations had significantly (p<0.01) higher amount of soil carbon (132.2 ± 12.55 MgC ha-1) as compared with Cupressus lusitanica (114.4 ± 12.55 MgC ha-1) and Eucalyptus saligna (85.0 ± 12.55 MgC ha-1) plantations. Specifically, Pinus patula plantation had sequestered almost twice of soil carbon as compared to above and below-ground carbon pools whereas that of Cupressus lusitanica and Eucalyptus saligna /grandis were about 1.2 and 1.3 times higher, respectively. The levels of acidity varied among species, between and within sites from very strongly acidic to very slightly acidic. The amount of soil nitrogen, phosphorous and potassium between sites, tree species and soil depths differed significantly. This study therefore reveals soil carbon potentials in forest plantations that need to be considered in the development and implementation of afforestation and reforestation activities under Clean/Sustainable Development Mechanism (SDM). Equally, differences on soil carbon sequestered among species need to be taken into account when evaluating carbon stocks under certified and voluntary carbon offset markets in order to promote trees with high potential of carbon sequestration for sustainable development. This is important because, introduction of Reducing Emissions from Deforestation and forest Degradation (REDD+) and forest based Clean Development Mechanisms (CDM) have provided impetus to African governments in implementing afforestation and reforestation (AR) programmes to enhance carbon stock and improve resilience of biophysical and social systems against impacts of climate of change.

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Section: Discussionmentioning

confidence: 99%

Soil Carbon Sequestration Differentials among Key Forest Plantation Species in Kenya: Promising Opportunities for Sustainable Development Mechanism

Oeba¹,

Otor²,

Kung’u³

et al. 2018

AFF

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“…Similarly, there is limited number of studies addressing effect of drainage of mineral forest soils on the GHG emissions. Modelling approaches usually ignores soil moisture regime assuming that mineral soils are well aerated and the same assumptions are used for wet and dry or drained mineral soils (Bārdulis et al, 2017;Liski et al, 2005;Peltoniemi et al, 2006). However, there are evidences that the drainage of wet mineral soils can increase GHG emissions from forest soils and drainage ditches on mineral soils in boreal forests can emit significant amounts of CH4 and CO2 (Peacock et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Greenhouse Gas Fluxes and Carbon Losses From Soil in Deciduous Forests With Naturally Wet and Drained Mineral Soils

Purviņa,

Bārdule,

Skranda

et al. 2024

Rural Development 2019

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The scope of the study is to evaluate soil greenhouse gas (GHG) fluxes from drained and naturally wet (pristine) nutrient rich mineral forest soils representing Mercurialosa mel. (drained) and Myrtillosoi-polytrichosa and Drypteriosa (wet soil) forest stand types with dominant species (aspen, birch and black alder). GHG were monitored during 12 months period using opaque chamber method. Gas samples were collected once per month and carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) concentration was determined using gas chromatography. The calculated GHG fluxes were evaluated in conjunction with temperature, soil moisture and groundwater level measurement results. We did not found difference of the soil GHG fluxes in drained and pristine wet mineral soils. The N2O and CH4 emissions from soil are negligible; however, periodic extreme increase of CH4 is characteristic for pristine wet soils, pointing out that wet mineral soils can be significant source of GHG emissions, just like organic soils. CO2 emissions are correlating with air and soil temperature, while CH4 and N2O emissions are not correlating with any of the monitored environmental variables.

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Carbon Budget of Undrained and Drained Nutrient-Rich Organic Forest Soil

Butlers

Lazdiņš

Kalēja

et al. 2022

Forests

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The impact of the moisture regime on the carbon budget of organic soils with different nutrient statuses has not been fully studied in hemiboreal forests thus far. This study evaluated soil carbon (C) stock changes in forests with drained and undrained nutrient-rich organic soils by estimating C loss through respiration and C input through the litter. The study sites included forest stands dominated by Norway spruce (Picea abies), silver birch (Betula pendula), black alder (Alnus glutinosa), and clear-cuts. Soil respiration was measured using the chamber method, and to estimate the soil C input by litter—the biomass and the C content of the foliar litter, ground vegetation, and fine-root production were measured. The soil in forest stands acted as a C sink. The carbon dioxide (CO2) removal rates of 0.4 ± 0.4 t C ha−1 year−1 and 0.1 ± 0.4 t C ha−1 year−1 were estimated for undrained and drained soil in forest stands, respectively. The soil in the clear-cuts acted as a CO2 source, and the annual emissions ranged from 0.4 ± 0.4 t C ha−1 year−1 in undrained to 0.9 ± 0.7 t C ha−1 year−1 in drained conditions. The reason for the soil in clear-cuts being a C source was increased C loss by respiration and reduced soil C input by litter. Furthermore, the mean soil C input by ground vegetation biomass in the clear-cuts was considerably higher than in the forest stands, which did not compensate for the increase in soil respiration and the absence of C input by foliar litter and the fine roots of trees. The results of the study on annual soil C stock changes can be used as an emission factor in national greenhouse gas inventories of forest land in the hemiboreal zone.

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Carbon balance in forest mineral soils in Latvia modelled with Yasso07 soil carbon model

Cited by 3 publications

References 31 publications

Soil Carbon Sequestration Differentials among Key Forest Plantation Species in Kenya: Promising Opportunities for Sustainable Development Mechanism

Soil Carbon Sequestration Differentials among Key Forest Plantation Species in Kenya: Promising Opportunities for Sustainable Development Mechanism

Greenhouse Gas Fluxes and Carbon Losses From Soil in Deciduous Forests With Naturally Wet and Drained Mineral Soils

Carbon Budget of Undrained and Drained Nutrient-Rich Organic Forest Soil

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