Investigation Relationship Between Some Important Species And Physical And Chemical Soil Factors (Case Study: Farhadabad Sub Catchment In Kurdistan;s Saral Ranglands)
2007
Gurgin Karaji, M., Lecturer of Kurdistan University | Karami, P., Member of Scientific board, of Kurdistan University | Shokri, M., Professor of Mazandaran University, | Safaian, N., Professor of Mazandaran University
The main aim of this study is investigation of relationship between some important species canopy cover percentage and some soil factors and determines the main soil factors effective on vegetation. To investigative this relationship refers, on physiognomic method determined 4 vegetation types. The effective soil factors were investigated. The multivariate analysis was used to determine relationship between vegetation cover and soil factors, the ordination of vegetation and soil factors were done by the Principal Componet Analysis (PCA) and Canonical Componet Analysis (CCA) using PC-ORD software. The results show 4 vegetation types. Multivariate analysis show that Achillea vermicularis طŒEryngium, Bromus tomentellus have positive relation with sand and negative relation with silt and caly, also Cephalaria microcephala , Chaerophyllum macrospermum have positive relation with silt and caly and negative relation with sand. Acantolimon sp طŒ Prangos ferulacea طŒ Achillea vermicularis and Ferula Haussknechtii have positive relation with silt and sp and negative relation with pH.
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