Taxonomy and Ecology Of Inland Sand Dune ... - Mycorrhizae

35percent usually was strongly influencedby increasing soil depth (FIG. 4).FIG. 4 Histogram of means and standarderror bars of initial soil moisture percentcontent at different depths around O.hymenoides plants.FIG. 5 Histogram of means and standarderror bars of initial soil pH at differentdepths around O. hymenoides plants.Average soil pH initially present in allthree stands increased from 6.06 at 0-10cm to 6.68 at 40-50 cm. However, theincrease in pH was only significantlydifferent between 30 and 40 cm (TABLE2). Soil pH values showed a generaltendency to increase with increasing soildepth in all three separate stands (FIG.5).Fully factorial MANOVA and thegeneral linear model analyses revealedsignificant effects of soil depth, standlocation, soil moisture percent, soil pH,and the interaction of soil depth andstand location, stand location and soilmoisture percent, and the stand locationand soil pH on the formation of VAM.Analyses did not show a significanteffect of the systematic samplingprotocol or its interaction with soildepth, stand location, soil moisturepercent, or soil pH, the interaction of soildepth and soil moisture percent, or theinteraction of soil depth and soil pH onthe formation of VAM.