The web has changed everything, and GIS is no exception. Web GIS, as a combination of web and Geo... more The web has changed everything, and GIS is no exception. Web GIS, as a combination of web and Geospatial information system or science (GIS) has become an evolving discipline. Web GIS provides all GIS functions, including easy access to spatial information, display, storage, editing, management, manipulation, analysis, and sharing of spatial information anywhere in the world at a relatively low cost and easily for end users. Has accepted. In this article, we will discuss the key technology of digital spatial information management system (Web GIS) of digital farms, then we will introduce SFIC. Finally, we design and develop a Web GIS as a management system with the aim of providing a suitable platform for the realization of visual management performance and also evaluating the performance of agricultural farms. This management and monitoring system helps decision makers and professionals to easily make appropriate decisions to increase crop production, management, updating spatial a...
Journal of Advances in Environmental Health Research, 2018
Municipal solid waste management is an essential part of urban services, which is often managed b... more Municipal solid waste management is an essential part of urban services, which is often managed by local governments. The present study aimed to investigate the spatial variation of the groundwater quality factors in Hamedan Municipal Solid Waste Landfill (HMSWL) site in Hamedan, Iran. In total, 20 wells were randomly selected for the collection of groundwater samples in the vicinity of the landfill. The quality of the well water samples was evaluated by measuring nitrate (NO-3), phosphate (PO‑4), chemical oxygen demand (COD), five-day biochemical oxygen demand (BOD5), turbidity, pH, total dissolved solid, and fecal coliform. According to the results, the mean concentration of BOD5 and COD in the collected samples was 6.25±11.72 and 7.90±11.50 mg/l, respectively. Maps of the distribution levels of pollution parameters around the landfill have been presented in figures. The issue of solid waste management in Hamedan city should be addressed through integrated management and improving...
Journal of Advances in Environmental Health Research, 2019
The present study aimed to evaluate the treatment efficiency of the modified Ludzack-Ettinger (ML... more The present study aimed to evaluate the treatment efficiency of the modified Ludzack-Ettinger (MLE) process using the conventional activated sludge (CAS) in Tafresh city, located in Iran during October-December 2016 (before upgrading) and October-December 2017 (after upgrading to the MLE process). The measured parameters in the study included chemical oxygen demand (COD), five-day biochemical oxygen demand (BOD5), nitrate-nitrogen, total suspended solids, phosphate, dissolved oxygen, ammonium-nitrogen, and pH. According to the obtained results, the treatment efficiency of the MLE process based on the BOD5 and COD was 92.11% and 91.20%, respectively. On the other hand, the treatment efficiency of the CAS process (before upgrading) based on the BOD5 and COD removal was 48.55% and 56.76%, respectively. Therefore, it could be concluded that the MLE process was able to successfully upgrade wastewater treatment services.
Biodiversitas Journal of Biological Diversity, 2014
Reyahi-Khoram M, Rizvandy M, Reyahi-Khoram R. 2014. The threats on the biodiversity of Bisotun W... more Reyahi-Khoram M, Rizvandy M, Reyahi-Khoram R. 2014. The threats on the biodiversity of Bisotun Wildlife Refuge and Bisotun Protected Area (BPA & BWR) in the west region of Iran. Biodiversitas 15: 67-74. Nature is necessary for the preservation of species and biodiversity richness; as a result, it has been protected for thousands of years. Bisotun Protected Area and Bisotun Wildlife Refuge (BPA & BWR) with about 95000 hectares is located in Kermanshah province in the west of Iran. The object of this study is to determine the physical properties and analyze the constraints that threaten the BPA & BWR. This research was conducted during the period from May, 2011 to November, 2012 in BPA & BWR. In this research, various animal and plant species were recognized through documentary analysis and also directs field observations. The obtained result indicates that major threats have occurred in biodiversity and ecosystem of BPA & BWR during 1980-2010. During these years, the study area...
American-Eurasian Journal of Agricultural and Environmental Science, 2013
Land use planning means managing our land and resources and it focuses on the functions of ecosys... more Land use planning means managing our land and resources and it focuses on the functions of ecosystems. The main purpose of this study is to determine the places and sites with necessary capabilities for ecotourism, environmental conservation, agricultural activities, range management, forestry, afforestation, aquaculture, city planning and industrial development in the studied area. This research was carried out in Hamadan province in Iran. In order to determine the most suitable area for mentioned uses, Makhdoum's model has been utilized. In this research, Geographical Information System (GIS) was used. 35 informational layers are linked and each informational layer is consisted of several classes. According to the results, the capability of the studied area was shown on the map in different tips of land uses. Based on the results, the rangelands of Hamadan province are extremely poor. Therefore, it is necessary to take appropriate actions for better exploitation of rangelands.
Geographic Information System (GIS) is the best suitable system for land evaluation. In this rese... more Geographic Information System (GIS) is the best suitable system for land evaluation. In this research, at the first step, the Makhdoum's model is introduced ‚ and then Hamadan Province, from aquaculture point of view and capabilities of the lands to fulfill aquaculture activities is evaluated. GIS was used for the mentioned purposes. The software used was Arc View (version 3.2 a), with the UTM projection. For evaluation, Mc Hark method of Maps overlaying was utilized. According to the results, the suitable surface area for aquaculture activities was introduced, which was equal to 13.1 percent of Hamadan Province. According to the evaluations, this province has limited potentials for aquaculture activities. Therefore, it is necessary to pay attention to these limitations in development plans. Key words: GIS, environmental evaluation, aquaculture, Hamedan
Municipal solid waste management is an essential part of urban services, which is often managed b... more Municipal solid waste management is an essential part of urban services, which is often managed by local governments. The present study aimed to investigate the spatial variation of the groundwater quality factors in Hamedan Municipal Solid Waste Landfill (HMSWL) site in Hamedan, Iran. In total, 20 wells were randomly selected for the collection of groundwater samples in the vicinity of the landfill. The quality of the well water samples was evaluated by measuring nitrate (NO-3), phosphate (PO-4), chemical oxygen demand (COD), five-day biochemical oxygen demand (BOD5), turbidity, pH, total dissolved solid, and fecal coliform. According to the results, the mean concentration of BOD5 and COD in the collected samples was 6.25±11.72 and 7.90±11.50 mg/l, respectively. Maps of the distribution levels of pollution parameters around the landfill have been presented in figures. The issue of solid waste management in Hamedan city should be addressed through integrated management and improving...
Journal of Advances in Environmental Health Research, 2016
Pelareh Dairy Industry (PDI) is located in the west of Iran. The aim of the present study was to ... more Pelareh Dairy Industry (PDI) is located in the west of Iran. The aim of the present study was to assess the quality and quantity of PDI wastewater and compare the results with the regulations. PDI has a wastewater treatment plant that consists of sewage collection system, screening system, equalization tank, clarification tank, anaerobic system for pretreatment, activated sludge processing, disinfection, and solids drying beds. In this research, seven quality parameters, including chemical oxygen demand (COD), five-day biochemical oxygen demand (BOD 5 ), nitrate (NO 3 ), total suspended solids (TSS), phosphate (PO 4 ), temperature (T o c), and pH, were measured as qualitative variables. Thus, 20 samples were collected from influent and effluent zones. Wastewater samples were collected using random grab sampling during peak hours. Based on the results, the average (SD) COD concentration of the raw wastewater in wet season and dry season was 2152.22 (1384.00) and 1813.38 (518.33) mg/l...
Wind erosion is one of the most serious environmental and social-economic problems in the center ... more Wind erosion is one of the most serious environmental and social-economic problems in the center of Iran. A great part of Iran including dry and ultra dry regions, due to various conditions such as insufficient soil and limited plant coverage, is very suitable for wind erosion. So far various models and methods have been presented to estimate wind erosion. Taxonomy model is one of the ranking methods used in different fields. This model was developed to classification and preparing desertification intensity map and was presented as a flexible model in Khezr Abad region with the area of 78,200ha. The aims of this research were studying and classification wind erosion potential using developed Numerical Taxonomy Model. Thematic databases, with a 1:50000 scale resolution, were integrated and elaborated in GIS based on Arc View3.2a, Universal Transfer Mercator (UTM) projection. The results showed that erosion intensity is divided into three classes, area with semi-active uptake, medium ...
Journal of Agricultural Science and Technology, Dec 2010
The aim of this research is to identify the most suitable land for forestry, afforestation and ra... more The aim of this research is to identify the most suitable land for forestry, afforestation and rangeland management in Hamadan province. This research has been accomplished using Makhdoum's model. In this research 30 digital data layers are used. The Geographic Information System (GIS) has been used as main tool and overlay method has been used to implement the mentioned model. The results of this research revealed that the extent of favorite areas for fifth grade forestry, favorite areas for fourth grade afforestation, and favorite areas for third grade and fourth grade range management in the studied area. Based on the results of this research, the studied area has limited potentials for forestry and afforestation activities. The obtained results of evaluation also showed that the rangelands of Hamadan province are extremely poor. Since the rangelands have a substantial role in preservation of soil and water, therefore it is necessary to take appropriate measures for better ex...
At present, conventional methods of noise exposure assessment utilize in industrial workplaces. I... more At present, conventional methods of noise exposure assessment utilize in industrial workplaces. In the classical area assessment method, noise exposure assessment depends on sound pressure level measurement results that expressed numerically and indicated harmful areas. This paper proposes an exposure assessment method of occupational noise based on Fuzzy sets. The noise assessment by Fuzzy logic method involves the primary investigation of the workplace, determined inputs and output variables, Fuzzification, Fuzzy rules, Fuzzy inference method and Defuzzification. This assessment method considered a function consists of Noise level, the number of exposed workers, exposure duration and noise reverberation time. Suggested method makes possible to evaluate unconsidered cases in order to assess of noise exposure risk. Fuzzy logic assessment results are more useful and flexible for analysis than conventional assessment. Fuzzy logic provides the opportunity to obtain risk model of noise ...
This research was conducted during 2003-04 with the aim of determining the extent of knowledge, a... more This research was conducted during 2003-04 with the aim of determining the extent of knowledge, attitude and practice of rural farmers in Hamadan province about sustainable agriculture. The questionnaire for this research was designed in four sections including: a section for personal and occupational particulars, a section for knowledge, a section for attitude, and a section for practice questions. There were totally 40 questions in the questionnaire. Applied sampling method was a two–stage cluster sampling with a size of 582 from the farmers in Hamadan Rural Area. The validity of questionnaire was examined and confirmed. Also in order to determine the reliability of the research, Cronbach’s alpha coefficient was 0.92. Based on the results, the mean (SD) of interviewee’s scores for their knowledge, attitude and practice regarding information about sustainable agriculture were 81.52(16.92), 73.46(15.20) and 58.04(14.13) (out of 100), respectively. There is a positive correlation bet...
The web has changed everything, and GIS is no exception. Web GIS, as a combination of web and Geo... more The web has changed everything, and GIS is no exception. Web GIS, as a combination of web and Geospatial information system or science (GIS) has become an evolving discipline. Web GIS provides all GIS functions, including easy access to spatial information, display, storage, editing, management, manipulation, analysis, and sharing of spatial information anywhere in the world at a relatively low cost and easily for end users. Has accepted. In this article, we will discuss the key technology of digital spatial information management system (Web GIS) of digital farms, then we will introduce SFIC. Finally, we design and develop a Web GIS as a management system with the aim of providing a suitable platform for the realization of visual management performance and also evaluating the performance of agricultural farms. This management and monitoring system helps decision makers and professionals to easily make appropriate decisions to increase crop production, management, updating spatial a...
Journal of Advances in Environmental Health Research, 2018
Municipal solid waste management is an essential part of urban services, which is often managed b... more Municipal solid waste management is an essential part of urban services, which is often managed by local governments. The present study aimed to investigate the spatial variation of the groundwater quality factors in Hamedan Municipal Solid Waste Landfill (HMSWL) site in Hamedan, Iran. In total, 20 wells were randomly selected for the collection of groundwater samples in the vicinity of the landfill. The quality of the well water samples was evaluated by measuring nitrate (NO-3), phosphate (PO‑4), chemical oxygen demand (COD), five-day biochemical oxygen demand (BOD5), turbidity, pH, total dissolved solid, and fecal coliform. According to the results, the mean concentration of BOD5 and COD in the collected samples was 6.25±11.72 and 7.90±11.50 mg/l, respectively. Maps of the distribution levels of pollution parameters around the landfill have been presented in figures. The issue of solid waste management in Hamedan city should be addressed through integrated management and improving...
Journal of Advances in Environmental Health Research, 2019
The present study aimed to evaluate the treatment efficiency of the modified Ludzack-Ettinger (ML... more The present study aimed to evaluate the treatment efficiency of the modified Ludzack-Ettinger (MLE) process using the conventional activated sludge (CAS) in Tafresh city, located in Iran during October-December 2016 (before upgrading) and October-December 2017 (after upgrading to the MLE process). The measured parameters in the study included chemical oxygen demand (COD), five-day biochemical oxygen demand (BOD5), nitrate-nitrogen, total suspended solids, phosphate, dissolved oxygen, ammonium-nitrogen, and pH. According to the obtained results, the treatment efficiency of the MLE process based on the BOD5 and COD was 92.11% and 91.20%, respectively. On the other hand, the treatment efficiency of the CAS process (before upgrading) based on the BOD5 and COD removal was 48.55% and 56.76%, respectively. Therefore, it could be concluded that the MLE process was able to successfully upgrade wastewater treatment services.
Biodiversitas Journal of Biological Diversity, 2014
Reyahi-Khoram M, Rizvandy M, Reyahi-Khoram R. 2014. The threats on the biodiversity of Bisotun W... more Reyahi-Khoram M, Rizvandy M, Reyahi-Khoram R. 2014. The threats on the biodiversity of Bisotun Wildlife Refuge and Bisotun Protected Area (BPA & BWR) in the west region of Iran. Biodiversitas 15: 67-74. Nature is necessary for the preservation of species and biodiversity richness; as a result, it has been protected for thousands of years. Bisotun Protected Area and Bisotun Wildlife Refuge (BPA & BWR) with about 95000 hectares is located in Kermanshah province in the west of Iran. The object of this study is to determine the physical properties and analyze the constraints that threaten the BPA & BWR. This research was conducted during the period from May, 2011 to November, 2012 in BPA & BWR. In this research, various animal and plant species were recognized through documentary analysis and also directs field observations. The obtained result indicates that major threats have occurred in biodiversity and ecosystem of BPA & BWR during 1980-2010. During these years, the study area...
American-Eurasian Journal of Agricultural and Environmental Science, 2013
Land use planning means managing our land and resources and it focuses on the functions of ecosys... more Land use planning means managing our land and resources and it focuses on the functions of ecosystems. The main purpose of this study is to determine the places and sites with necessary capabilities for ecotourism, environmental conservation, agricultural activities, range management, forestry, afforestation, aquaculture, city planning and industrial development in the studied area. This research was carried out in Hamadan province in Iran. In order to determine the most suitable area for mentioned uses, Makhdoum's model has been utilized. In this research, Geographical Information System (GIS) was used. 35 informational layers are linked and each informational layer is consisted of several classes. According to the results, the capability of the studied area was shown on the map in different tips of land uses. Based on the results, the rangelands of Hamadan province are extremely poor. Therefore, it is necessary to take appropriate actions for better exploitation of rangelands.
Geographic Information System (GIS) is the best suitable system for land evaluation. In this rese... more Geographic Information System (GIS) is the best suitable system for land evaluation. In this research, at the first step, the Makhdoum's model is introduced ‚ and then Hamadan Province, from aquaculture point of view and capabilities of the lands to fulfill aquaculture activities is evaluated. GIS was used for the mentioned purposes. The software used was Arc View (version 3.2 a), with the UTM projection. For evaluation, Mc Hark method of Maps overlaying was utilized. According to the results, the suitable surface area for aquaculture activities was introduced, which was equal to 13.1 percent of Hamadan Province. According to the evaluations, this province has limited potentials for aquaculture activities. Therefore, it is necessary to pay attention to these limitations in development plans. Key words: GIS, environmental evaluation, aquaculture, Hamedan
Municipal solid waste management is an essential part of urban services, which is often managed b... more Municipal solid waste management is an essential part of urban services, which is often managed by local governments. The present study aimed to investigate the spatial variation of the groundwater quality factors in Hamedan Municipal Solid Waste Landfill (HMSWL) site in Hamedan, Iran. In total, 20 wells were randomly selected for the collection of groundwater samples in the vicinity of the landfill. The quality of the well water samples was evaluated by measuring nitrate (NO-3), phosphate (PO-4), chemical oxygen demand (COD), five-day biochemical oxygen demand (BOD5), turbidity, pH, total dissolved solid, and fecal coliform. According to the results, the mean concentration of BOD5 and COD in the collected samples was 6.25±11.72 and 7.90±11.50 mg/l, respectively. Maps of the distribution levels of pollution parameters around the landfill have been presented in figures. The issue of solid waste management in Hamedan city should be addressed through integrated management and improving...
Journal of Advances in Environmental Health Research, 2016
Pelareh Dairy Industry (PDI) is located in the west of Iran. The aim of the present study was to ... more Pelareh Dairy Industry (PDI) is located in the west of Iran. The aim of the present study was to assess the quality and quantity of PDI wastewater and compare the results with the regulations. PDI has a wastewater treatment plant that consists of sewage collection system, screening system, equalization tank, clarification tank, anaerobic system for pretreatment, activated sludge processing, disinfection, and solids drying beds. In this research, seven quality parameters, including chemical oxygen demand (COD), five-day biochemical oxygen demand (BOD 5 ), nitrate (NO 3 ), total suspended solids (TSS), phosphate (PO 4 ), temperature (T o c), and pH, were measured as qualitative variables. Thus, 20 samples were collected from influent and effluent zones. Wastewater samples were collected using random grab sampling during peak hours. Based on the results, the average (SD) COD concentration of the raw wastewater in wet season and dry season was 2152.22 (1384.00) and 1813.38 (518.33) mg/l...
Wind erosion is one of the most serious environmental and social-economic problems in the center ... more Wind erosion is one of the most serious environmental and social-economic problems in the center of Iran. A great part of Iran including dry and ultra dry regions, due to various conditions such as insufficient soil and limited plant coverage, is very suitable for wind erosion. So far various models and methods have been presented to estimate wind erosion. Taxonomy model is one of the ranking methods used in different fields. This model was developed to classification and preparing desertification intensity map and was presented as a flexible model in Khezr Abad region with the area of 78,200ha. The aims of this research were studying and classification wind erosion potential using developed Numerical Taxonomy Model. Thematic databases, with a 1:50000 scale resolution, were integrated and elaborated in GIS based on Arc View3.2a, Universal Transfer Mercator (UTM) projection. The results showed that erosion intensity is divided into three classes, area with semi-active uptake, medium ...
Journal of Agricultural Science and Technology, Dec 2010
The aim of this research is to identify the most suitable land for forestry, afforestation and ra... more The aim of this research is to identify the most suitable land for forestry, afforestation and rangeland management in Hamadan province. This research has been accomplished using Makhdoum's model. In this research 30 digital data layers are used. The Geographic Information System (GIS) has been used as main tool and overlay method has been used to implement the mentioned model. The results of this research revealed that the extent of favorite areas for fifth grade forestry, favorite areas for fourth grade afforestation, and favorite areas for third grade and fourth grade range management in the studied area. Based on the results of this research, the studied area has limited potentials for forestry and afforestation activities. The obtained results of evaluation also showed that the rangelands of Hamadan province are extremely poor. Since the rangelands have a substantial role in preservation of soil and water, therefore it is necessary to take appropriate measures for better ex...
At present, conventional methods of noise exposure assessment utilize in industrial workplaces. I... more At present, conventional methods of noise exposure assessment utilize in industrial workplaces. In the classical area assessment method, noise exposure assessment depends on sound pressure level measurement results that expressed numerically and indicated harmful areas. This paper proposes an exposure assessment method of occupational noise based on Fuzzy sets. The noise assessment by Fuzzy logic method involves the primary investigation of the workplace, determined inputs and output variables, Fuzzification, Fuzzy rules, Fuzzy inference method and Defuzzification. This assessment method considered a function consists of Noise level, the number of exposed workers, exposure duration and noise reverberation time. Suggested method makes possible to evaluate unconsidered cases in order to assess of noise exposure risk. Fuzzy logic assessment results are more useful and flexible for analysis than conventional assessment. Fuzzy logic provides the opportunity to obtain risk model of noise ...
This research was conducted during 2003-04 with the aim of determining the extent of knowledge, a... more This research was conducted during 2003-04 with the aim of determining the extent of knowledge, attitude and practice of rural farmers in Hamadan province about sustainable agriculture. The questionnaire for this research was designed in four sections including: a section for personal and occupational particulars, a section for knowledge, a section for attitude, and a section for practice questions. There were totally 40 questions in the questionnaire. Applied sampling method was a two–stage cluster sampling with a size of 582 from the farmers in Hamadan Rural Area. The validity of questionnaire was examined and confirmed. Also in order to determine the reliability of the research, Cronbach’s alpha coefficient was 0.92. Based on the results, the mean (SD) of interviewee’s scores for their knowledge, attitude and practice regarding information about sustainable agriculture were 81.52(16.92), 73.46(15.20) and 58.04(14.13) (out of 100), respectively. There is a positive correlation bet...
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Papers by Mahdi Reyahi Khoram