In many studies, topographic factors have been considered as an important factor in establishing the vegetation in different ecosystems. So, it affects vegetation composition and diversity by influencing soil moisture, fertility and soil depth. The aim of this research was to investigate the effects of slope, elevation and geographical aspects on species growth, forage production […]
Knowledge on habitat characteristics and nature of regional vegetation in rangelands is a prerequisite for any planning and proper range management along with sustainable development of renewable natural resources. Rangelands in southern and western highlands of Kashan, Iran are of good vegetation diversity but unfortunately, palatable and desirable species are endangered in recent years. This […]
This research aims to evaluate the effects of seed scarification on five perennial Astragalus species including A. effusus, A. vegetus, A. subsecundus, A. brevidens and A. cyclophyllon in the field conditions. Seeds were sown after scarification with sandpaper by hand in the field of Homand Absard Rangeland Research Station, Damavand, Iran in autumn in 2008. […]
Flood disaster is considered as a major natural hazard due to its devastating effects on the affected areas. Determining the flood vulnerable areas is important for decision makers in order to perform planning and management activities. Geographical Information System (GIS) is integrated with Multi Criteria Decision Analysis (MCDA) used to analyze the flood vulnerable areas. […]
Growth and productivity of plants are mainly affected by various environmental factors in different ecosystems and natural habitat in the world. This research aims to study the existing relationships between the phytosociology characteristics of Thymus kotschyanus and environmental factors in order to find the most important factors governing development of the species in middle Taleghan […]
Land use may be regarded as one of the most important factors affecting the environment with respect to human activities. So far, destroying the rangelands and changing them into the waste lands and poor rangelands has been proposed as the most significant variations of land use done by human beings. This paper has been conducted […]
Considering forage grass species, germination is one of the important stages concerning the growing stage that is often influenced by environmental stresses, particularly salinity and drought stresses. Thus, this study aims to assess the effects of salinity and drought stresses on germination characteristics and seedling growth of desert wheatgrass, Agropyron desertorum (Fisch. ex Link) Schult. […]
Due to the increase of changes in the land uses mainly resulting from human interferences, monitoring the changes and evaluating their trend and environmental effects for future planning and management are essential. In the present study, an attempt is made to observe the changes which had occurred in Ardestan area during a period of 30 […]
Understanding the plant species diversity could be used as an important indicator applied for the natural areas management. The aim of this study was to investigate the relationships between soil characterizes with distribution and diversity of plant in vegetation types in Karvan district (located in west of Isfahan province). For this purpose, three vegetation types […]
Annually, 200 ha of Agh Ghala rangelands in Golestan, Iran are under Alkaligrass Puccinella distans‘s cultivation but the failure in the identification of appropriate sites for seed sowing may result in high costs of cultivation. The current study aims to reduce such costs through the examination of apt sites to grow P. distans in northern […]
