The diversity of tree and open green space (OGS) of hospitals in Banda Aceh

Abstract

This study has been conducted using the quadratic method to find out the species diversity index (H'). Five quadratic plots, with size of 10 m x 10 m (tree strata) were made for each area of samples. The percentage of open green space for each unit samples was measured by the calculation of ratio of the hospital area and the area of open green space for each sample unit. The result of the study was there were 51 species of trees which belongs to 28 families. The importance of each species in all stations was small or relatively homogeneous, but there were eight species of relatively high importance plants. The results of the diversity index analysis (H') showed that the value of H' ranged from 1.484 to 3.082, which placed two hospitals into high H' values including Zainal Abidin Hospital (H' = 3.082) and Kesdam Hospital (H' = 3.015). The other stations had H' medium and low values. Therefore, the OGS data analysis found that 10 out of 12 observation stations had the OGS value more than 50% or the OGS ratio of 11 hospitals in Banda Aceh was > 30% and fulfil the requirements of the law on OGS.