Estimation of soil organic carbon content by Vis-NIR spectroscopy combining feature selection algorithm and local regression method
HIGHLIGHTS Estimation of soil organic carbon content using Vis-NIR spectroscopy. Compare different feature band selection methods. Improvement of the way genetic algorithms are coded. ABSTRACT Soil organic carbon (SOC) content is a critical parameter for evaluating soil health. However, high redundancy and invalid information in soil hyperspectral data can reduce the accuracy and stability of […]
Edaphic properties in a eucalyptusforest ecotone in the Nova Baden State Park, Southeastern Brazil
HIGHLIGHTS State parks are integral protection units created to protect ecosystems. Studies on soil properties in ecotone areas are still scarce. Higher litter and soil organic matter content were observed in eucalyptus area. Edaphic properties in the ecotone area were more similar to orest fragment. Biogenic aggregates showed highest organic carbon values and its fractions. […]
Stabilization of organic matter in soils: drivers, mechanisms, and analytical tools – a literature review
HIGHLIGHTS Biochemical recalcitrance lost prominence as the physical protection and organo-mineral interaction mechanisms were investigated. Soil fauna has a prominent role in decomposition and SOM stabilization across various scales. Micro-scale analytical techniques, including those based on synchrotron radiation, propped the advances in mechanistic understandings of SOM stabilization. Further research of SOM dynamics in the tropics […]
