Vegetative parameters of Mangrove forest on the Govater bay in southeast of Iran

To investigate the vegetative parameters of mangrove communities, sampling was performed in random- systematic method using 8 transects and 37 plots (100m2) in Govater Bay at the southeast part of Iran in Sistan and Baluchestan province (Govater and Bahu creek). The area of mangrove in this location is 672 ha and consists pure communities of Avicennia marina (Harra). On the basis of performed measurements, mean density of mangrove trees was measured 1623 trees per hectar. Mean of height trees and canopy height trees were obtained 264.90 cm and 180.58 cm respectively. Crown mean diameter of trees measured 263.34 cm and the mean of crown density was 54.60 percent. Nature of data (parametric or nonparametric) surveied by tests relating to normality of data and equality of variances and then each variable was analysed according to its nature. Analysis of statistical information performed by spss 13 softwar in format of descriptive statistic of vegetative parameters and investigation of statistical differences and correlations between these parameters. Results showed that, although the Avicennia marina is the only tree species existing in this area, these forests have significant differences regarding to many parameters in two creeks, different transects and along sea to land, that altogether indicate heterogenity of grey mangrove pure stands on basis of these parameters.