Investigation of richness, diversity and uniformity of plants in geomorphological zones of Adoroshk watershed (Yazd-Shirkuh province)

Document Type : Research Paper


Department of Environment, Faculty of Natural Resources, Yazd University, Yazd, Iran


Paying attention to vegetation preservation is one of the pillars of design and management of areas. For this purpose, in this study, the study of richness, diversity and uniformity of plants in the geomorphological zones of Adoroshk watershed was studied. In Arc GIS software environment, using georeferenced topographic map, the boundary of the area was drawn according to cartographic principles. Habitat geomorphological zones were identified by visual interpretation of Google Earth software images and mapped in Arc GIS software. During the spring and summer of 2019, Adoroshk plants were identified. In total, the amount of vegetation in the area was 16.56%. Biodiversity indices were used to calculate the richness, diversity and uniformity of plants and Kruskal-Wallis test was used to compare biodiversity indices in geomorphological zones. If the differences were significant, the groups were divided into two. The two were compared by Mann-Whitney test. The results of the Kruskal-Wallis test showed that the difference of geomorphological zones in terms of all indicators is significant at the level of one percent.  The Mann-Whitney test showed that the deposit areas are richer in terms of richness than the rocky and alluvial areas.


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