Investigation on physiochemical characteristics of soil and plant for finding of indicator species in Vardavard region in Kaeadj

Relationship between plant and sial has special importance, because it is judged about
one by considering the another one.
Soil-plant relationship is used for range trend, range emdttton, range suitability in
range species. This research, includes:
The analysis of plant different types and dominant species in each type with soil factors
such as percentage of lime clay depth, stone and gravel (surface and subsurface), in
field, and office works.
A) field Works :
In each type, 10 1m2 plots were selected (exception of 25m2 plots in shrubs in some
types). It was surved crown cover and percentage of gravel in special forms. were
surveyed. Soil was surveyed with digging four profiles in each type and in Laboratory for
analyses.
B) Laboratory and office work:
In Lab lime and clay percentage, soil depth and percentage of stone and gravel in
surface and subsurface soil were measured. Data were analysed with SPSS for Dos that
consequently different plant types and soil factors were classified. Dominant plant
species were classified with attention to soil factors in each type. Correlation between
crown cover in plants and soil factors (percentage of clay and lime) was obtained. The
highest correlation was between soil depth and plant type (r= 95%). Astragalus
glaucacanthus has not any correlation with soil factors. Acanthophylum gracile has the
highest correlation with percentage of clay.