Factors Controlling Soil Structure Dynamics and Carbon Sequestration Across Different Climatic and Lithological Conditions

摘要: Soil organic carbon (SOC) is a strong determinant of soil fertility through its positive effects on structure and chemical biological properties which in turn stimulate primary production. The objective this work was to simulate field sites that represent different land uses management practices three continents, order identify the most important factors controlling dynamics C sequestration across climatic lithological conditions as well quantify rates aforementioned processes. carbon, aggregation, turnover (CAST) model used SOC sequestration, aggregate formation, including nontilled soils natural ecosystems tilled agricultural fields Europe (Critical Zone Observatories (CZO) SoilTrEC network) one site North America. Derived data from simulations’ results stocks water-stable (WSA) particle size distribution, together with respective additional (Damma Glacier CZO, Milia (Greece), Heilongjiang Mollisols (China)), were statistically analyzed determine affecting development. include covered local vegetation, while cultivated crops. represented by Damma CZO (Switzerland), (China), Koiliaris Clear Creek (United States), Slavkov Forrest (Czech Republic), whereas located at Marchfeld (Austria), (Greece). Principal component analysis (PCA) identified clay content, bulk density, (precipitation evapotranspiration), matter (OM), decomposition controlled relative importance each these differs under differing stages Overall, modeling for both consistent data. reliably simulated various uses, conditions, providing support underlying conceptual mathematical evidence CAST reliable tool interpret formation processes aid design sustainable practices.