Maryam Haji Mohammad Ebrahim Zanjani; Hosein Arzani; Nematalah Khorasani; Navid Ziaee
Volume 19, Issue 2 , September 2012, , Pages 191-202
Abstract
Distinguishing of protected areas is one of the range management methods for improvement, sustainable development and richness of plant composition. This research was carried out to study the effects of conservation on some vegetative factors in some parts of Varjin located in Tehran province and protected ...
Read More
Distinguishing of protected areas is one of the range management methods for improvement, sustainable development and richness of plant composition. This research was carried out to study the effects of conservation on some vegetative factors in some parts of Varjin located in Tehran province and protected since 1982. For this purpose, two vegetation types were selected in protected area as well as unprotected area. Four transects of 300 m length were then established in key areas of each vegetation type and 10 plots of 1m2 were sampled along each transect with 30-m intervals. In each plot, list of species was recorded and vegetative factors including density, composition and yield (cut and weighting method) were measured. All samples were weighted in wet and dry condition. Normality of data was tested and then measured parameters were compared by t test. Results showed that mean difference for all measured parameters in vegetation type of (Me Pe – As br) except vegetation composition of class III species and density of class II and III species were significant. Also in vegetation type of (Fe ov – As br), all parameters were significant except density of class I and class III species.
Nabi Ahsani; Jafar Oladi; Farhang Ghasriani; Mohammad Darvish
Volume 14, Issue 4 , February 2008, , Pages 539-558
Abstract
Kusalan range is a northwest-southeast mountain near Sarvabad, west of Kurdistan. The habitat includes a complex set of ecological functions and unique mountainous values such as Quercus forests, dense ranges, as well as various springs inside and around the region. So far, there was no study on the ...
Read More
Kusalan range is a northwest-southeast mountain near Sarvabad, west of Kurdistan. The habitat includes a complex set of ecological functions and unique mountainous values such as Quercus forests, dense ranges, as well as various springs inside and around the region. So far, there was no study on the bioenvironmental habitat potential. This persuaded us to conduct a research on the habitat and ecosocial potentials according to IUCN categories using data bases like other literatures, 10 m2 panchromatic SPOT5 2005 data , expert opinions and field studies. Analysis of ecosocial and ecological bioenvironmental sources was implemented through a geographic information system (R2V, Arc/Info, Idrisi and Arc View). After qualitative and quantitative evaluation of various sources, land units were observed from overlaying maps of land form, soil categories, vegetation type, wildlife habitats, land use and conventional territory. Illustrated map show that about 70 percent of the area has a great conservational potential thus, the zonation process on the basis of IUCN definitions executed. The studied area was a habitat for 224 species of flora and 195 species of fauna classified as 5 categories: 29% core zone, 41% buffer zone, 14%expanded recreation zone, 3% intensive recreation zone and 14% cultural historical zone of Hawraman city and Pir-Shaliar annual ceremony and 13.2% reclamation zone including scientific, training values, virgin features and unique landscapes. Thus, Kusalan habitat worth to be introduced a national park (II) as a member of quadruplet national protected area in Iran. According to the results, GIS and RS approaches (hybrid interpretation of high resolution SPOT5 images) certainly can support determining and preparing bioenvironmental map sources in impracticable areas for conservational studies on IUCN criteria basis.