Mohammad Mahdavi
Faculty Member, Department of Rangeland Management, Islamic Azad University, Nour Branch, Mazandaran, Iran
[ 1 ] - Effects of Harvester Ants’ Nest Activity (Messor spp.) on Structure and Function of Plant Community in a Steppe Rangeland (Case Study: Roodshoor, Saveh, Iran)
Harvester ants are known as one of the most renowned bio-disturbances in the arid and semi-arid ecosystems that affecte vegetation by collecting seeds and harvesting plants. It seems that physiognomy of plant association in steppe shrub land of Roodshoor, Saveh, Iran has been highly changed by harvester ants’ activities that caused to conduct this research. The study was carried out on active a...
[ 2 ] - Determining the Most Suitable Vegetation Index for Seperating Ecotone Boundaries in Arid Rangelands Using Satellite Data
Ecotones are zones of gradual changes from an ecological system to another.Ecotones monitoring could be important to find out the reason for changes and limits. Inthis research satellite data were used to analyze the ecotone boundary in Fars steppicrangelands using IRS LISS III and Pan data of year 2006. The real vegetation map andecotones prepared through Geo-eye images from Google earth softw...
[ 3 ] - Determination of Sodium Chloride in the Plant Species of Frankenia hirsuta L. in the Saline and Alkaline Rangelands of Golestan Province (A Case Study of Inche-Shorezar Rangeland)
The study of the relationships of the plant species with the soil in a salty ecosystem would play a significant role in the ecologic programming and management of these inhabitants. The saline and alkaline rangelands of the Golestan province are areas that contain salty soil with high underground crusts. The areas are covered by halophyte plants such as Frankenia hirsuta. This species is a pere...
[ 4 ] - Effects of Topographic Factors on Carbon Sequestration in Astragalus Gossypinus (Case Study of Bazan Region, Kermanshah Province)
Increasing the concentration of atmospheric carbon dioxide is the main factor for the climatic change having some harmful consequences for the human health while there is no considerable effort for decreasing this accelerated global problem, yet. Kermanshah province located in the west of Iran has about 1,200,000 ha rangeland which is dominated by Astragalus sppas the more frequent shrub beinga...
[ 5 ] - Determination of Soil Salinity in Frankenia hirsuta L. Habitat (Case Study: Saline and Alkaline Rangelands of Golestan Province)
Soil salinity is one of the important factors which can influence the growth anddistribution of plant species. Saline and alkaline rangelands of Golestan Province, Iran withlow-deep underground water level are considered as a halophyte plant species growing area.Attempts have been made to determine soil salinity and its relationship with Frankenia hirsutaL. In order to determine the Electrical ...
[ 6 ] - Evaluation of Enclosure Effects on Soil Carbon Storage (Case Study: Rangeland of Shahtappeh-Chah Mahmood and Chiro in Semnan Province)
Livestock grazing is one of the most important kinds of land usage that has a high potential to decrease or increase carbon storage in rangeland ecosystem. This research was investigated the effects of enclosure on soil carbon storage in a rangeland with dominant plants of Artemisia aucheri. Hence, two rangelands of enclosure (Shahtappeh-Chah Mahmood) and no enclosure (Chiro) were chosen in Sem...
[ 7 ] - Systemic Management of Mountainous Rangeland Ecosystem, Case Study: The Javaherdeh Rangeland of Ramsar
Mountainous rangeland ecosystems have a highly delicate position in ecologic areabecause of severe environmental conditions and having wildlife and livestock. Knowing andrealizing the biotic and abiotic components, which have an interaction with each other in thisecosystem, perform the most important role in to desirable management of it. The systematicmanagement is one of the managing features...
نویسندگان همکار