Biodiversity of the woody and herbaceous species in relation to topsoil in riparian forests of Maroon, Behbahan

Knowledge about relationship between soil and plant can help in modification and management of natural areas. For this purpose، a study was conducted to investigate the relationship between woody and herbaceous plants biodiversity with physicochemical characteristics of topsoil in forest district of Chahar-Asiab، Behbahan. Sampling was done along transects with 100 m length، 50 m away from each other. In order to investigate floristic characteristics، some plots were laid systematically along transects. Also to measure physicochemical characteristics of soil، samples were taken from different depths (0-15 and 15-75 cm) at the beginning and the end of each transect. Then، PAST and SPSS software were used to calculate biodiversity and perform correlation analysis respectively. The shannon-winer and Simpson diversity indices and Margalef and Menhinick richness indices were calculated، and correlation analysis was done between the indices and soil characteristics. Results indicated that، plant diversity in study area is correlated with some soil characteristics، so that organic matter and silt percentage had negative and electrical conductivity and sand percentage had positive correlation (p<0. 01) with biodiversity indices.