seyed akbar javadi; alireza khanarmooyi; Mohammad Jafari
Abstract
The relationship between vegetation and soil properties in Khojier National park, located in Tehran province was investigated. For this purpose, vegetation data was recorded in each plot, based along 3 tansects in each vegetation type. Minimal area method was used for plot size. Density and vegetatin ...
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The relationship between vegetation and soil properties in Khojier National park, located in Tehran province was investigated. For this purpose, vegetation data was recorded in each plot, based along 3 tansects in each vegetation type. Minimal area method was used for plot size. Density and vegetatin cover were determined. TWINSPAN and DCA tests were used to classify vegetation. Soil sample was taken from 0-20cm of soil depth then transferred to laboratory and prepared for analysis including soil texture, percentage of CaCo3, CaSo4, and pH, EC, P, Ca, Ma and N. For analysis of soil properties in relation to vegetation changes, a multivariate analysis method such as canonical correspondence analysis (CCA) was used. These analyzes were conducted using PC-ORD software. Results showed a significant correlation between vegetation and environmental factors. The most important soil properties affecting on vegetation types were gravel, clay, silt, sand, caso4, caco3, pH, EC, K and elevation. Statistical analysis of the results showed that the vegetation types had a significant difference in terms of percentage of Gravel, CaCo3, CaSo4, Sand, Clay.The most important soil properties affecting on vegetation types were gravel, clay, silt, sand, caso4, caco3, pH, EC, K and the height above sea level. Statistical analysis of the results showed that the vegetation types had a significant difference in view of percentage of Gravel, CaCo3, CaSo4, Sand, Clay.
Sareh Rasekhi; Ali Akbar Mehrabi; Seyed Akbar Javadi; Mehdi Ghorbani
Abstract
Renewable natural resources are national capital and are of paramount importance in each country. Preservation and developing these resources is incumbent upon relevant institutions and all people especially the beneficiaries. In this regard, various approaches have been recommended for optimum use and ...
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Renewable natural resources are national capital and are of paramount importance in each country. Preservation and developing these resources is incumbent upon relevant institutions and all people especially the beneficiaries. In this regard, various approaches have been recommended for optimum use and sustainable preservation of natural resources especially rangelands among which co-management is highly emphasized. To pinpoint challenges and barriers before co-management, the integrated institution-beneficiaries network (institutions related to rangeland management and rangeland users) of Ghasr-e-Yaghoub village in Safashahr was analyzed applying social network analysis method. Results demonstrated that cohesion level among rangeland users and institutions related to rangeland and also network sustainability in the study area was moderate and Village Islamic Council and Jihad-e Keshavarzi (Agricultural Development Agency) were the two most influential institutions. In other words, they were core actors among all institutions. Therefore, reinforcement of cohesion among actors and recognizing key actors in different levels are necessary approaches for implementation of co-management action plan. Additionally, it helps natural resource managers for sustainable management of rangelands.
Reza Siahmansour; Hossein Arzani; Mohamad Jafari; Seyed Akbar Javadi; Ali Tavili
Abstract
Fire consider as a factor and basic management in rangeland in order to reform of composition and biological diversity that use in rangeland ecosystems. This project was established to deal with the effect of fire in the research center for rangeland. Zagheh locale where is in 35 km of north eastern ...
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Fire consider as a factor and basic management in rangeland in order to reform of composition and biological diversity that use in rangeland ecosystems. This project was established to deal with the effect of fire in the research center for rangeland. Zagheh locale where is in 35 km of north eastern of Khoramabad with 1960 meters above sea level. The average comparison and analysis show that herbal forbs which use for grazing form density and average o canopy cover have significant difference at the level of %1 between fire and control area. (p < %1). This study shows that in short time, it is possible to replace perennial. The Prevailing type of grass such as Agropyron trichophorum - Bromus tomentellus and festuca ovina with annual grass like Bromus tectorum –Heteranthelium piliferum- Taeniatherum crinitum. These changes indicate perennial grasses and increased annual grasses in short time.
Sare Rasekhi; Mahdi Ghorbani; Aliakbar Mehrabi; Seyed Akbar Javadi
Abstract
Cooperation in pastoralism and indigenous knowledge of dairy management had been considered for many years in Iran and had been adapted with culture and environment of every region. This research had illustrated the analysis of indigenous knowledge and social cohesion in dairy management of grazing livestock ...
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Cooperation in pastoralism and indigenous knowledge of dairy management had been considered for many years in Iran and had been adapted with culture and environment of every region. This research had illustrated the analysis of indigenous knowledge and social cohesion in dairy management of grazing livestock in Ghasr e Yaghub village. Research method was a combination of filed studies, direct observation, and cooperative observation and organized interview. The results include functions of cooperative management system of “Ham Shiry” among rural women named “Shir Dan”, different dimensions of indigenous knowledge, mechanism of dairy management among women and related traditions and local cooperation. The results demonstrated that rural women in the study area had been created social institution based on local rules and in order to manage dairy products. This kind of associations had been rooted in indigenous knowledge and has a significant role to save and improve social cohesion and sustainability of economical characteristics of local inhabitants.
