To study the structure and function of soil organic matter, soil scientists have performed
alkali extractions for soil humic acid (HA) and fulvic acid (FA) fractions for more than 200 …

The term humic substances (HS) refers to a group of heterogeneous, dark-colored
polydisperse substances found in soils, peats, natural waters, and sediments. It is …

Long-term fertilization has shown a high relevance as regards soil organic carbon (SOC)
sequestration, but the degree of stability of the sequestered SOC has not been widely …

To explore soil organic carbon (SOC) accumulation mechanisms, the dynamics of C
functional groups and macroaggregation were studied synchronously through aggregate …

Straw decomposition plays an important role in soil carbon sequestration. Litter quality and
climate condition are considered to be key factors that regulate straw decomposition. This …

Soil aeration is a crucial factor that regulates crop residue decomposition, and the chemical
composition of decomposing crop residues may change the forms and availability of soil …

The incorporation of different types of crop straw may lead to distinct forms and chemical
structures of soil organic matter (SOM), which are closely associated with the communities of …

Fresh organic carbon becomes more accessible to deep soil following losses of surface soil
and deep intentional incorporation of crop residues, which can cause the priming effect and …

Crop straw incorporation is a useful approach for increasing the quantity and changing the
chemical composition of soil organic matter (SOM). This process is influenced by soil …

Soil acidity is one of the vital factors that influence organic matter transformation and
accumulation. Long-term studies on the mechanisms of biochar's effects on soil organic …