Relationship between dehydrogenase activity and properties of soil aggregates

Dynamics of bacterial communities in relation to soil aggregate formation during the decomposition of 13C-labelled rice straw

“…Community structure is dependent on the size of soil aggregates and on the location within soil aggregates (Ranjard et al, 2000;Poly et al, 2001;Mummey and Stahl, 2004), as are a number of physiological characteristics of the communities (Hattori, 1988). Aggregate size classes differ in their potential denitrification (Lensi et al, 1995;Sey et al, 2008), mineralisation of organic matter (Franzluebbers and Arshad, 1997;Sey et al, 2008) and enzymatic activities (Drazkiewicz, 1995). Microbial communities and activities are also known to vary with pore size class (Strong et al, 2004;Ruamps et al, 2011).…”