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Predicting soil organic carbon stocks in different layers of forest soils in the Czech Republic

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F23%3A97370" target="_blank" >RIV/60460709:41210/23:97370 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216224:14310/23:00131498 RIV/00020702:_____/23:N0000078

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S2352009423000548" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352009423000548</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.geodrs.2023.e00658" target="_blank" >10.1016/j.geodrs.2023.e00658</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Predicting soil organic carbon stocks in different layers of forest soils in the Czech Republic

  • Original language description

    Carbon dioxide, the most produced anthropogenic greenhouse gas, could be moderated by sequestering carbon in forest soils. Forest soils store more carbon than there is in the atmosphere. Thus, the smallest variation in soil carbon levels could trigger a significant change in atmospheric carbon. This study focused on predicting the spatial distribution of carbon stocks within surface organic and mineral topsoil and subsoil layers of the forty-one natural forest areas of the Czech Republic. Cubist and Random Forests machine learning algorithms were employed with a grid search hyper tuning to improve prediction accuracy. We used the five-fold cross-validation to verify the model accuracy using Root Mean Square Error (RMSE), coefficient of determination (R2), and Mean Absolute Error (MAE). Random Forests yielded lower RMSE of 1.10 kg/m2, 3.85 kg/m2, and 4.77 kg/m2 in the surface organic horizon (F + H layer), mineral topsoil (0-30 cm layers) and subsoil horizons (30-80 cm layers), respectively, compared to the RMSE values of Cubist, which were 1.14 kg/m2, 3.90 kg/m2, and 4.91 kg/m2 in the surface organic, mineral topsoil and subsoil horizons, respectively. R2 values of both models were low for all three horizons considered. Random Forests were the preferred algorithm for SOC stock prediction in all layers of the forest soils. Cubist predicted the spatial distribution of SOC stocks with more covariates than Random Forests. Altitude was the most important covariate for the spatial distribution of SOC stocks for both Random Forests and Cubist in all soil horizons considered. High SOC stocks for all soil horizons are spatially concentrated in soil horizons along the country borders in the mountaineous natural forest areas.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    40104 - Soil science

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    GEODERMA REGIONAL

  • ISSN

    2352-0094

  • e-ISSN

    2352-0094

  • Volume of the periodical

    34

  • Issue of the periodical within the volume

    SEP 2023

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    9

  • Pages from-to

  • UT code for WoS article

    001029542300001

  • EID of the result in the Scopus database

    2-s2.0-85161722925