Investigation on the effects of Haloxylon-planted different age's levels on physical and chemical properties of soil in Ardestan area

This study was done for the purpose of investigation on the effect of Haloxylon-planted different age’s levels with consideration interval of planting time، on the physical and chemical properties of soil in Ardestan area. For this purpose، sampling was done as randomized-systematic in three Haloxylon-planted areas (8، 15 & 23 year ages) and one adjacent control area. Soil sampling was taken in each control area in two-120m transects with 30m intervals at two depth (0-30 & 30-60 cm). Soil samples were investigated in the laboratory. After importing the data، in spss، ANOVA، and Duncan test were used. The result showed that Haloxylon did not affect on the soil texture. Lime، gypsum، k & p significantly، but there were significant effects on pH، EC، Mg and N in Haloxylon-planted areas with different ages. Therefore، from this study can conclude that the soil physical properties unaffected by the planting of Haloxylon، but it causes the changing of some chemical properties of soil in different depths.