Changes in soil phosphorus fractions associated with altered vegetation and edaphic conditions across a chronosequence of revegetated dunes in a desert area

•Assessing the effects of shrub revegetation and its age on P fractions in dune soils.•Revegetation increased soil total P and labile and moderately labile P contents.•Concentrations of soil total P and P fractions increased with revegetation age.•Accumulation rates of total P and most P fractions decreased with revegetation age.•Altered edaphic properties had greater controls on P dynamics than vegetation changes.