PJB-1990-8
PHYTOSOCIAOLOGY OF THE WATER COURSES OF QUETTA DISTRICT
RASOOL BAKHSH TAREEN AND S.A. QADIR
Abstract
Twenty three plant communities recognized on the basis of compositional similarity were grouped into 7 steppe types which show the correlations with the edaphic factors viz., Peganum harmala steppe:-Medium Cl; Saccharrum griffithii steppe:- Mostly low HCO3 , low EC and medium organic matter: Hertia intermedia steppe:- Low to medium MWHC, Ca++ + Mg++: Artemisia maritime steppe:- Medium to high Cl; Wet steppe :- Low to medium MWHC , high CaCO3,high to medium Cl and Ca++ + Mg++. Individual communities in each steppe type also differentiated on the basis of
edaphic factors. The total coverage was found to be low. Species diversity was generally high in protected areas as compared to unprotected areas.
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