Organic carbon stock in different types of mineral soils in cropland and grassland in Latvia

Bārdule, Arta; Lupikis, Ainars; Butlers, Aldis; Lazdiņš, Andis

doi:10.13080/z-a.2017.104.001

Cited by 14 publications

(15 citation statements)

References 22 publications

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“…In this study, data from 218 plots were used to calculate an average organic carbon stock for each soil and land use combination. In mineral soils, the organic carbon stock at 0-40 cm depth amounted to 83.9 ± 7.1 t ha −1 C and 89.4 ± 12.0 t ha −1 C for cropland and grassland soils, respectively, while in organic soils, these were higher at 122.0 ± 45.2 t ha −1 C in cropland and 208.2 ± 22.9 t ha −1 C in grassland (Bardule et al, 2017). The average carbon stock was 97.8 ± 14.7 t ha −1 C in afforested agricultural land (Lazdiņš et al, 2015) and 268.5 t ha −1 C in afforested organic soils (Lazdins et al, 2014).…”

Section: Supply Of Carbon Regulationmentioning

confidence: 94%

Assessment of Soil Functions: An Example of Meeting Competing National and International Obligations by Harnessing Regional Differences

Valujeva

Nipers

Lupikis

et al. 2020

Front. Environ. Sci.

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The increased demand for bio based products worldwide provides an opportunity for Eastern European countries to increase their production in agriculture and forestry. At the same time, such economic development must be congruent with the European Union’s long-term climate and biodiversity objectives. As a country that is rich in bioresources, the Latvian case study is highly relevant to many other countries—especially those in Central and Eastern Europe—and faces a choice of transition pathways to meet both economic and environmental objectives. In order to assess the trade-offs between investments in the bioeconomy and the achievement of climate and biodiversity objectives, we used the Functional Land Management (FLM) framework for the quantification of the supply and demand for the primary productivity, carbon regulation and biodiversity functions. We related the supply of these three soil functions to combinations of land use and soil characteristics. The demand for the same functions were derived from European, national and regional policy objectives. Our results showed different spatial scales at which variation in demand and supply is manifested. High demand for biodiversity was associated with areas dominated by agricultural land at the local scale, while regional differences of unemployment rates and the target for GDP increases framed the demand for primary productivity. National demand for carbon regulation focused on areas dominated by forests on organic soils. We subsequently identified mismatches between the supply and demand for soil functions, and we selected spatial locations for specific land use changes and improvements in management practices to promote sustainable development of the bio-economy. Our results offer guidance to policy makers that will help them to form a national policy that will underpin management practices that are effective and tailored toward local climate conditions and national implementation pathways.

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Section: Supply Of Carbon Regulationmentioning

confidence: 94%

Assessment of Soil Functions: An Example of Meeting Competing National and International Obligations by Harnessing Regional Differences

Valujeva

Nipers

Lupikis

et al. 2020

Front. Environ. Sci.

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“…Initial carbon stock in mineral soil (60 tons C ha -1 ) is estimated using Yasso model as an average steady state value. No difference is set between cropland and grassland, following the results of earlier studies [11]. Assumptions on carbon stock change in mineral soils due to afforestation are estimated using Yasso model within the scope of elaboration of the National Forest Reference Level [12].…”

Section: Methodsmentioning

confidence: 99%

Evaluation of middle term Greenhouse Gas (GHG) mitigation potential of birch plantations with mineral and organic soils

Lazdiņš

Šņepsts

Butlers

et al. 2021

Engineering for Rural Development

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The study compares 9 forest management scenarios in birch plantations in cropland and grassland with mineral and organic soils. Calculation period is 40 years for all scenarios. The study proves that establishment of birch plantations leads to reduction of greenhouse gas (GHG) emissions by 317-1776 tons of CO2 eq. ha -1 or 7.9-44.4 tons of CO2 eq. ha -1 per year. The reduction of GHG emissions in birch plantations is significantly influenced by growth conditionsin organic soils GHG emission reduction is 6 times higher than in mineral soils. In plantations with mineral soils most of the GHG emission reductions occur during 40 years after the establishment. In organic soils GHG emission reduction continues steadily due to reduction in GHG emissions from soils compared to alternative management scenarios (grassland or cropland). Harvested wood products and the substitution effect of biofuels play an important role in reducing GHG emissions, in particular through the assumption that wood products are recycled into biofuels at the end of their useful life. Recommended type of soil preparation in the most cases is mounding, but taking into account soil scarification costs, the number of target trees in the plantation must be reduced (down to 1500 per ha -1 ). Early tending, felling of young stands and regenerative felling must also be adapted to growing conditions by managing more intensively areas with fertile soils and less intensivelyplantations with poor soils. In more fertile soils higher planting density may increase CO2 removals in the middle term. When planting 1500-2000 seedlings ha -1 , moderately fertile soils ensures higher CO2 removals. According to the study results establishment of birch plantations in farmland is one of the most effective solutions for reducing GHG emissions in the land use, land use change and forestry (LULUCF), as well as in agriculture sector, especially, if organic soils are afforested.

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“…Pastaraisiais metais įvairiose pasaulio šalyse atliekama vis daugiau tyrimų, susijusių su dirvožemio C org. ir dirvožemio azotu (Kõlli et al, 2010;Bardule et al, 2017). Žemės ūkio tikslams naudojamuose žemapelkės durpžemiuose yra sukaupta daug dirvožemio C org.…”

Section: įVadasunclassified

“…Tyrimui buvo pasirinkti trys žemapelkės durpžemio variantai: 1) žemapelkės durpžemyje augo natūrali pieva, plotas buvo ganomas, peraugusi žolė mulčiuota; 2) žemapelkės durpžemyje augo kultūrinė pieva, ji per sezoną tris kartus pjauta, žolė išvežta; 3) žemapelkės durpžemis kiekvienais matais artas, auginti migliniai javai: 3 . Išryškėjo tendencija, kad durpžemis, kuriame augo migliniai javai, buvo mažiau rūgštus.…”

Section: Tyrimų Metodai Ir Sąlygosunclassified

“…2. Concentration of nitrate nitrogen and its percentage in mineral nitrogen in a year when in Histosol there grow: natural meadows (1), cultural meadows (2), cereal crops (3). 0-30, 30-60 and60-90 cm depth, Naujienos Terric Histosol, 2016-2019 miglinių javų pasėlių plotuose -77,2 mg kg -1 , o mažiau -54,7 ir 41,8 mg kg -1 -natūralios ir kultūrinės pievos plotuose.…”

Section: Tyrimų Metodai Ir Sąlygosunclassified

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Concentrations of nitrogen and organic carbon in different uses of Terric Histosol

Staugaitis¹,

Šarka²

2020

zemesukiomokslai

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In 2016–2019 in Eastern Lithuania, in Naujienos Terric Histosol (HSs-d), where natural and cultural meadows are grown and areas of cereal crops are annually cultivated, monitoring sites were installed. There at different times of the year at different Histosol depth – 0–30, 30–60 and 60– 90 cm layers, organic carbon (Corg.), total nitrogen (Nsum.) and mineral nitrogen (Nmin) concentration and their relationship were investigated. The studies have shown that the highest Nmin concentration was found in natural meadows areas, followed by cultural meadows areas, and finally cereal crops areas; in Terric Histosol at the 0–30 cm depth, mean concentrations were obtained, 100.7, 88.3 and 79.0 mg kg–1, respectively. The highest Nmin concentration was observed in the first days of July. It was 137.6 and 105.4 mg kg–1 in natural and cultural meadows areas, respectively. In deeper Terric Histosol layers, the Nmin concentration in cereal crops areas was slightly different. At the 30–60 cm depth, it ranged from 45.6 to 102.2 mg kg–1 over the years, and at the 60–90 cm depth from 55.1 to 87.2 mg kg–1. Nitrate formed the major part of mineral nitrogen in the studied Terric Histosol – 49.7–91.0%. Corg. concentration at the 0–30 cm depth in natural meadows areas was 41.2%, in cultural meadows areas it was 35.6% and in cereal crops areas 19.4%. The same sequence of Nsum. concentration was found – 3.04, 2.18 and 1.97%, and C:N ratio – 13.6, 16.3 and 9.8%. At deeper Terric Histosol layers the values of these indicators differed slightly between the crops areas. The Nmin concentration at 0–30 and 30–60 cm depth correlated best with the C:N ratio (r0–30 cm = 0.872**, r30–60 cm = 0.562*), Nsum. concentration (r0–30 cm = 0.618*, r30–60 cm = 0.568*) and to a lesser extent with the Corg. concentration (r0–30 cm = 0.341, r30–60 cm = 0.564*).

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Organic carbon stock in different types of mineral soils in cropland and grassland in Latvia

Cited by 14 publications

References 22 publications

Assessment of Soil Functions: An Example of Meeting Competing National and International Obligations by Harnessing Regional Differences

Assessment of Soil Functions: An Example of Meeting Competing National and International Obligations by Harnessing Regional Differences

Evaluation of middle term Greenhouse Gas (GHG) mitigation potential of birch plantations with mineral and organic soils

Concentrations of nitrogen and organic carbon in different uses of Terric Histosol

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