List of articles (by subject) Environmental impact assessment
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Open Access Article
1 - A review of the assessment and management of the ecological risk of invasive plants
ساجده مدنی mokarram ravanbakhsh مریم پناهندهDue to the increase in human activities, the destructive impact on the environment is not limited to a particular region of the world. Including the destructive impacts are entering non-native plant species around the world that during the 200 years ago with the spread MoreDue to the increase in human activities, the destructive impact on the environment is not limited to a particular region of the world. Including the destructive impacts are entering non-native plant species around the world that during the 200 years ago with the spread of agriculture, increase the exchange of goods, increased human activities as well as increasing environmental destruction, it's increasing. Although only a limited number of non-native species can be invasive, the negative effects of these species on natural and crop communities, human and animal health, and the changing ecosystem characteristics are so high that the research process is constantly expanding in this regard. One of the damages, which has received considerable attention in recent years, is the problem of the introduction of non-native (invasive) plant species into natural ecosystems, but not all non-native species are harmful. Sometimes non-native species are well absorbed by the ecosystem and positioned like native species. But invasive species are species that are not native ecosystems, and their entry causes economic, environmental or human health damage. In this study, the ecological risk assessment of aggressive plants will be provided and suitable strategies for controlling entry and risk reduction will be presented. Manuscript profile -
Open Access Article
2 - Environmental risk assesssment of construction of caspian port in Anzali free zone by using Integration AHP& TOPSIS
shamim moghadami niloofar Abedinzade Maryam Haghighi khomamiEnvironmental risk assessment is a further step of environmental impact assessment and analyze different aspects of risk, while understanding the Environmental impact zone, the environmental sensitivity of the area affected by special environmental values as well as ana MoreEnvironmental risk assessment is a further step of environmental impact assessment and analyze different aspects of risk, while understanding the Environmental impact zone, the environmental sensitivity of the area affected by special environmental values as well as analysis and risk assessment district is considered. To accomplish this study first by using of field investigation the activities which leads to risk in construction of Caspian port water front were identified and in order to extract the significant risks the specialists questioner (Delphi) was used. Finally among the identified risks, 10 environmental risks were chosen for prioritizing.After identifying the risks, indicators such as probability, severity of risk and the sensibility of the environment were selected as prioritizing criteria. AHP method and ECPRO 2000 software, for determining the risk probability, for determination the severity of risk scores and the reference texts for determining the values of sensitivity were applied. After determining the indicators, the TOPSIS software was used to risk prioritizing. The results of prioritizing studied risk showed that the highest risk is related to increased turbidity, deformation of substrate and water pollution are with weights 0.938, 0.898 and 0.662 respectively. Manuscript profile -
Open Access Article
3 - Environmental Impact Assessment of Steel Plant Construction
هانیه میربلوکی niloofar Abedinzade fatemeh ghanbariToday, steel production and consumption is applied as an important criterion for measuring the degree of countries industrial development. Needing to investment in construction and economic infrastructure in developing countries, their steel production policy is in the MoreToday, steel production and consumption is applied as an important criterion for measuring the degree of countries industrial development. Needing to investment in construction and economic infrastructure in developing countries, their steel production policy is in the direction of producing the various types of structural steel. In this regard, the main object of the studied steel plant construction is creating jobs in the region, reducing imports and contributing to the country's economic development through carbon ingot production with electric arc furnace technology. After assigning the direct study area of the project, the major contaminants arising from the project implementation were investigated in construction and implementation phases and the corrective actions considered to reduce the contaminants effects. In this research, Rapid Assessment method was used for environmental impact assesment that according to the results, among 96 detected impacts, 55.1 percent of the impacts are negative and 44.9 percent are positive that in case of observing the corrective actions before and after the project implementation, its negative impacts will be minimized. Also, it is recommended that after the plant costruction, apply a periodic monitoring of the outlet contaminants every three months. Manuscript profile -
Open Access Article
4 - Environmental and Technical Assessment of Biogas Production using Rice Straw
Mahsa Khodabakhshi pour mohsenq mohammadi mohsen khodabakhshipourEnergy consumption is increasing rapidly in the world and it is expected that unrenewable energy sources will expire in the future; therefore, new methods of energy production are becoming more common all over the world. Biogas is one of the new and clean energies, whic MoreEnergy consumption is increasing rapidly in the world and it is expected that unrenewable energy sources will expire in the future; therefore, new methods of energy production are becoming more common all over the world. Biogas is one of the new and clean energies, which is produced from anaerobic fermentation of biomass. Guilan province with 238,000 hectares of paddy lands has significant potential for biogas production from organic residues. In this way, this study was carried out to investigate the process of biogas production from the combination of rice straw and animal waste with the ratios of (0-100), (5-95), (10-90), (15-85), (20-80) respectively in three repetitions. The experiment was performed at mesophilic temperature by anaerobic digestion method in the 1/5 lit bottles. An economic and environmental assessment for replacement of biogas produced in this process with fossil fuels was implemented in the village of Pounel in Guilan Province. The results showed that the ratio of 10% of rice straw had the highest biogas production efficiency and by replacing the biogas, 21 percent will save in fossil fuel consumption. It will also prevent the emission of 328.42 kg of CO2 gas into the atmosphere per year. Manuscript profile -
Open Access Article
5 - Assessment and Environmental Impact Analysis of the Urban Streets using Multi-Criteria Decision Making Model (Case Study: 58-meter street of Arak)
maryam hosseinkhani amir ansari amir Hedayati AgmashhadiThe purpose of this research is assessing and planning the urban streets of Arak city. In this research, environmental impacts were assessed by using these three methods: Multi-criteria like rapid matrix, ANP and fuzzy TOPSIS that both of them are decision-making method MoreThe purpose of this research is assessing and planning the urban streets of Arak city. In this research, environmental impacts were assessed by using these three methods: Multi-criteria like rapid matrix, ANP and fuzzy TOPSIS that both of them are decision-making methods. The process that has been followed in this study includes, determining the indicators, (using library studies), specifying geographic area, introducing the options, studying the environmental basic conditions, indicating and predicting and impacts, assessing the impacts using the three mentioned methods and providing the report. In the following, the status of the environmental factors was investigated. Then, the most important factors that might be affected by 58-meter street construction were identified using checklist, and were selected as the criteria for impact assessment. Then environmental impact assessment was separately fulfilled by using three methods like rapid assessment (matrix), fuzzy TOPSIS and ANP. Due to the the more negative impacts relatively to the positive impacts in the rapid matrix method, the project was rejected. In both fuzzy TOPSIS and ANP methods the non-execution option has the most weight and preference. But among these methods, the ANP method is introduced as a suitable method for environment impacts assessment in different projects because of its ability to create a network with interaction between criteria and options at different levels and directions. Manuscript profile -
Open Access Article
6 - The Study of Environmental Impacts of Pistachio Production Using Life Cycle Assessment, (Case Study: Rafsanjan City)
Maryam Rajaei Mohammad Reza Elmi Mahin MalekianLife Cycle Assessment method is an accepted approach for assessing the environmental impacts of a product's life cycle, which is calculated on the basis of two components: the amount of consuming resources and the release of pollutants to the environment. In this study, MoreLife Cycle Assessment method is an accepted approach for assessing the environmental impacts of a product's life cycle, which is calculated on the basis of two components: the amount of consuming resources and the release of pollutants to the environment. In this study, the environmental impact assessment of pistachio production from the beginning of planting to the field door was estimated using Life Cycle Assessment (LCA) method in Rafsanjan. Initial data were collected through questionnaire method and interview with local farmers. The collected data were analyzed using Ecoinvent®3.0 database and Simapro8.0.4.30 software. The system boundary, field and work unit were considered as a ton of pistachios in this study. The results of this study showed that the use of diesel and electricity as energy sources lead to the release of CO2, NOx, SOx and heavy metals into the environment. Analysis of the pistachio data showed that emissions from fertilizers in the layers had the highest role in source reduction, global warming, toxicity to humans, toxicity to marine aquatics and chemical photooxidation. Emissions from fuel consumption had the greatest effect on ozone layer depletion. Manuscript profile -
Open Access Article
7 - Effects of different levels of Ajowan Trachyspermum ammi as an alternative to antibiotics on growth performance carcass characteristics and some blood parameters of broiler chickens
ali Reyan Mohasesi Hasan Darmani Koohi Reza Naseri Harsini Hamed KioumarsiThe purpose of this experiment was to evaluate the effects of different levels of powdered dried aerial parts of Ajowan (Trachyspermum ammi) seeds on the performance and carcass traits of broiler chicks. In this experiment one hundred and sixty one-day-old broiler chick MoreThe purpose of this experiment was to evaluate the effects of different levels of powdered dried aerial parts of Ajowan (Trachyspermum ammi) seeds on the performance and carcass traits of broiler chicks. In this experiment one hundred and sixty one-day-old broiler chicks (Ross 308) were used in a completely randomized design with 4 treatments and 4 replicates (with 10 birds each). The experimental treatments included: 1) control group (without additive2) basal diet + 0.2% Ajowan powder, 3) basal diet + 0.4% Ajowan powder, and 4) basal diet + 0.6% Ajowan powder. Results showed that the levels of 0.2 and 0.4 % had no significant effect on daily weight gain, food intake and feed efficiency. Except for carcass weight, Ajowan had no significant effect on carcass characteristics. For blood parameters, the effects of Ajowan, in most cases, were non-significant. In contrast, plasma LDL and cholesterol concentrations decreased significantly with increasing levels of Ajowan powder. According to the obtained results, based on maintaining the bird's performance at the same levels as the control group and on the other hand improving the pattern of blood lipid metabolites, it can be said that Ajowan can be a good alternative to the growth-promoting antibiotic to improve health and solve the environmental problems in this area. Manuscript profile -
Open Access Article
8 - Feasibility of Increasing the Shelf Life Hens Packed with Cellulose Pad and Lemon Extract and Its Environmental Effects
Hamed Kioumarsi Azam Barani-Beyranvand Hamed Ghafouri-OskuyiEnvironmental pollution caused by the blood from packaged chicken is one of the biggest problems in the production and distribution of these products. The effect of packaging with cellulose pad and lemon extract on chicken drumstick samples was studied on some chemical, MoreEnvironmental pollution caused by the blood from packaged chicken is one of the biggest problems in the production and distribution of these products. The effect of packaging with cellulose pad and lemon extract on chicken drumstick samples was studied on some chemical, microbial and physical properties. The environmental effects of this study are also important because the compounds released from poultry waste will be reduced if microbial growth is prevented. The results showed that the effect of cellulose and the presence of extracts compared to samples without pad on blood absorption factors, inhibition of TVN increase and peroxide was significant (p <0.01). This can be due to the absorption of compounds in blood by pad and the presence of phenolic and antioxidant compounds in the extract that increase the quality of the samples containing the pad with the extract. The presence of 5% and 1% of lemon extract inhibits the increase of total microbial load and cryophilic bacteria, respectively. Examination of odor, color and total desirability results in chicken thigh samples showed that all samples were in good condition on day 0, which did not change significantly in the smell and color properties after just using the cellulose pad. However, changes in color compared to the smell of the product are more noticeable due to blood absorption and reduction of meat storage capacity over a period of 6 days. In general, over time, the samples containing the extract were in better conditions for all factors than the control samples. As a result, it will prevent the increase of microbial contamination, bloodshed and other harmful factors to the environment. Manuscript profile -
Open Access Article
9 - Investigating the effect of climate change on temperature and precipitation using the LARS-WG model (case study: Bashar river basin)
Hamid reza Panahi Hossein Montaseri Aliakbar Hekmat zadeh Reza KhaliliThe increase of greenhouse gases and the resulting increase in temperature have caused the balance of the earth's climate system and climate changes in most areas of the earth. Therefore, adapting and dealing with climate changes in the water resources sector along with MoreThe increase of greenhouse gases and the resulting increase in temperature have caused the balance of the earth's climate system and climate changes in most areas of the earth. Therefore, adapting and dealing with climate changes in the water resources sector along with reducing their reflection should be seriously addressed as part of a comprehensive regional response to the vulnerability caused by climate change. In this study, using LARS-WG exponential microscale software and the HadCM3 oceanic atmospheric general circulation model in the form of different scenarios defined in the fourth IPCC report (basic scenarios), including scenario A1, A2, B1, B2, which are more related to regional issues. And the world is concerned from an economic and environmental point of view, the amount of temperature changes and precipitation in the next 100 years of Bashar river basin was predicted. Then the fifth report scenario (RCP) was used and the results were compared with the basic scenarios. The results showed that in both scenarios in the coming period, we will face a large increase in average air temperature, but the decrease in precipitation will not be significant. In the climate change scenario section, RCPs until the end of the 21st century indicate an increase in temperature and a decrease in precipitation in the coming years. The amount of temperature changes in RCP2.6 was estimated between 3 and 13% and in RCP8.5 between 4 and 14%; This increase in temperature on a large scale increases evaporation and prolongs drought periods. Manuscript profile -
Open Access Article
10 - Investigation of the trend of climate change using simulated data of LARS-WG model in the period of 2011-2030 (Case study: Sardasht region of West Azerbaijan)
maryam aghaie zahra eslamianGiven the importance of climate change on the structure of the planet's environment and its in habitants, and will continue to try to understand as much as possible how climate change is happening. In this study in the climatic phase, daily data of minimum temperature, MoreGiven the importance of climate change on the structure of the planet's environment and its in habitants, and will continue to try to understand as much as possible how climate change is happening. In this study in the climatic phase, daily data of minimum temperature, maximum temperature, precipitation and sunshine hours of Sardasht synoptic station in the period 1996-1996 were simulated using LARS-WG statistical model and after ensuring the efficiency of this model in Simulation of meteorological parameters in Sardasht region, to study climatic parameters in climate change, data; Three scenarios A2 (maximum scenario), A1B (medium scenario) and B1 (minimum scenario) of HadCM3 model in the period 2030-2011 were scaled with LARS-WG small statistical model. The results showed that according to the estimation of LARS-WG model for the studied scenarios in the future periods, the average temperature of Sardasht watershed will increase by 4 degrees Celsius. The amount of precipitation also shows a 2% increase compared to the base period. The results also show that in general, the performance of Lars model in modeling the meteorological variables of the stations under study is appropriate and can be used to reconstruct the data of stations in the past or Extend this data to the next period. It can also be used to assess the future climate of the province on a local scale. Manuscript profile -
Open Access Article
11 - Investigating the impact of climate change on the environment and agriculture
Bahareh Rafiei Hamed Kioumarsi Reza Naseri Harsini Seyed Mohammad Reza MahdavianDuring the last century, science and technology have grown and developed significantly, however, this development, along with all the advantages and added values for the quality of human life, has brought inappropriate effects on the environment. Unfortunately, the huma MoreDuring the last century, science and technology have grown and developed significantly, however, this development, along with all the advantages and added values for the quality of human life, has brought inappropriate effects on the environment. Unfortunately, the human conflict with the problems which has created for the planet, including wars and new diseases, has caused less attention to the impact of climate change on environment and especially the related agriculture activities. If the agricultural sector exposed by climate change and will not be able to meet human food needs, life will be near to its end point. Agricultural activities are not only exposed to these changes, but also by leaving possible negative effects on environment lead to these changes. Threatening food security, the reduction of biological diversity, the loss of soil, the reduction of water resources, and the conversion of forests into farms and their gradual destruction, turn the earth into an unlivable area with the unpredictable occurrence of storms, floods and temperature changes. Therefore, investigating the impact of climate change and its components on different ecosystems and species that affect agriculture can be a step towards achieving new management mechanisms to reduce and adapt to these changes and achieving sustainable environment and agriculture. Manuscript profile