Open AccessModelling soil organic carbon turnover with assimilation of satellite soil moisture data
Author(s) -
Olha Stepanchenko,
Liubov Shostak,
Olena Kozhushko,
Viktor Moshynskyi,
Petro Martyniuk
Publication year - 2021
Publication title -
modeling, control and information technologies
Language(s) - English
Resource type - Journals
eISSN - 2707-1049
pISSN - 2707-1030
DOI - 10.31713/mcit.2021.31
Subject(s) - humus , environmental science , water content , pedotransfer function , soil science , soil carbon , soil organic matter , data assimilation , soil water , geology , meteorology , geotechnical engineering , physics , hydraulic conductivity
The content of organic carbon is one of the essential factors that define soil quality. It is also notoriously challenging to model due to a multitude of biological and abiotic factors influencing the process. In this study, we investigate how decomposition of soil organic matter is affected by soil moisture and temperature. Soil organic carbon turnover is simulated by the CENTURY model. The accuracy of soil moisture data used is ensured by data assimilation approach, combing mathematical model and satellite retrievals. Numerical experiments demonstrate the influence of soil moisture regimes and climate on the quantity of soil humus stocks.