List of articles (by subject) environmental economy
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Open Access Article
1 - Economical Valuation of River to Conservation for sustainability of Water Supply (Case Study: Masal Khalkaei River, Gilan Province)
طوبی عابدی بهنام یوسفیEconomical valuation of environmental services help the decision makers to make decision about receasion, conservation and sustainability of water resources. Contingent Valuation Method (CVM) is used to evaluate conservation of water resources value of Khalkaei River lo MoreEconomical valuation of environmental services help the decision makers to make decision about receasion, conservation and sustainability of water resources. Contingent Valuation Method (CVM) is used to evaluate conservation of water resources value of Khalkaei River located in Masal in Guilan Province at the north of Iran. This method tries to define individual’s willingness to pay (WTP) under suggested prices of given hypothetical market. Among the variables of the model presented, monthly cost, monthly income and environmental viwepoint (P<0.01) and landscape (P<0.1) are effective variables on willing to pay.. The average monthly WTP per family was calculated as 36766 Rls of Iran. The annual conservation value in terms of WTP for the conservation of Khalkaei River was estimated as 208 million Rls of Iran. Manuscript profile -
Open Access Article
2 - Prediction of carbon price forecast using time series analysis
Roya AbediMany economic tools have been proposed and used to reduce climate change. Carbon trading is one of these market-based tools that is recognized as a cost-effective way to change climate and environmental issues. Today, the issue of carbon sequestration and bioenergy prod MoreMany economic tools have been proposed and used to reduce climate change. Carbon trading is one of these market-based tools that is recognized as a cost-effective way to change climate and environmental issues. Today, the issue of carbon sequestration and bioenergy production versus fossil fuels is great concern of governments, and many efforts have been made to reduce or control carbon dioxide emissions. The aim of this study is to investigate carbon price fluctuations and predict price trends based on historical carbon price data in the time series 2005-2020. Data were analyzed by regression analysis based on Fuller augmented Dicky after eliminating inflation. The results show that the trend of carbon prices has fluctuated during this period. The average expected price of carbon is 3,303,589 Iranian Rials.Many economic tools have been proposed and used to reduce climate change. Carbon trading is one of these market-based tools that is recognized as a cost-effective way to change climate and environmental issues. Today, the issue of carbon sequestration and bioenergy production versus fossil fuels is great concern of governments, and many efforts have been made to reduce or control carbon dioxide emissions. The aim of this study is to investigate carbon price fluctuations and predict price trends based on historical carbon price data in the time series 2005-2020. Data were analyzed by regression analysis based on Fuller augmented Dicky after eliminating inflation. the trend of carbon prices has ش fluctuated during this period. The average expected price of carbon is 3,303,589 Iranian Rials. Manuscript profile -
Open Access Article
3 - Factors affecting the promotion of tourism entrepreneurship in rural areas with emphasis on environmental protection
seyede Mohadese Hatami ShahkhaliIt can be said that like other spontaneous human activities, entrepreneurship that leads to improving the quality of life and well-being is of great importance. Influential factors play a role in the development and promotion of entrepreneurship, while there are obstacl MoreIt can be said that like other spontaneous human activities, entrepreneurship that leads to improving the quality of life and well-being is of great importance. Influential factors play a role in the development and promotion of entrepreneurship, while there are obstacles and challenges for entrepreneurs. The purpose of this study is to identify these factors and study the effective elements. This research is applied in terms of purpose and the results of research in other areas can be used and in terms of the method of work, it is descriptive-analytical. In this research, SPSS software has been used to extract the questionnaire data and a one-sample method has been used to test the hypotheses. The research indicates that there is a significant relationship between institutional and organizational factors, economic factors, managerial factors, social, environmental and cultural factors and the promotion of entrepreneurship in the studied villages. Manuscript profile -
Open Access Article
4 - The effect of tourism on increasing the income of villagers Case study: Villages of Chabaksar section of Rudsar city
sabere salahkart For countries like Iran, oil revenues are considered an economic rent that does not have any direct inductive effects in terms of raising the level of production in the economy. While the tourism industry is chained to some economic activities and its prosperity, in t Moret For countries like Iran, oil revenues are considered an economic rent that does not have any direct inductive effects in terms of raising the level of production in the economy. While the tourism industry is chained to some economic activities and its prosperity, in terms of increasing revenues in the economy of the host country has a significant impact. The main purpose of this study is to investigate the effects of tourism on increasing the income of the studied villages, which has been done by survey and descriptive-analytical methods. The statistical population of the study is the residents of 7 selected tourist villages from Siakhlorud and Oshian districts of Chabaksar district of Rudsar city, which according to Cochran's formula, 331 people have been done using stratified sampling method. Questionnaire is the most important data collection tool in the present study, the validity of which has been confirmed by technical experts and the reliability of the research tool has been confirmed using Cronbach's alpha coefficient of 94%. Explained with a mean of 3.79 and standard deviation of 0.51. Manuscript profile -
Open Access Article
5 - Investigating the managerial performance of tourism complexes by reviewing socio-cultural components (Case study: Kermanshah Tourism Complex)
Behroz Badko Mohammad Ghasemi Siani Farhad JalalvandiToday, tourism is one of the largest industries in the world and depends on a major part of the global economy; Tourism is economically, socio-culturally and environmentally integrated with the lives of people and governments. The purpose of this study is to investigat MoreToday, tourism is one of the largest industries in the world and depends on a major part of the global economy; Tourism is economically, socio-culturally and environmentally integrated with the lives of people and governments. The purpose of this study is to investigate the managerial performance of tourism complexes and present a strategic proposal with emphasis on socio-cultural components in Kermanshah tourism complex. This article examines the managerial performance in four tourism complexes, Rakhsh, Nesar, Nodsheh and Sefid Barg in Kermanshah province. And how can focusing on these components provide successful and appropriate management for the Kermanshah Jihad University tourism complex? This research was conducted using field survey and questionnaire tools presented to 152 people in Kermanshah tourism managers. The results showed that the components of reviving cultural identity and sense of national pride, promoting the culture of tourist reception and retention are ranked first, second and third among all the identified components affecting the managerial performance of tourism complexes, respectively. Accordingly, the emphasis on cultural identity and the necessary training to the managers of the complexes to create a culture of tourist reception has a significant impact on attracting tourists to the tourist complexes of the province. Manuscript profile -
Open Access Article
6 - The Effect of Irrigation Water Salinity and Other Production Factors on Potato Crop yield in Hamadan – Bahar Plain
Moein Sadeghi Seyed Mohsen SeyedanIncreasing agricultural production due to rapid population growth and consequently increasing water demand in recent decades has led to uncontrolled withdrawal and drop in groundwater levels in Hamadan-Bahar plain. This has led to a sustained drop in groundwater level i MoreIncreasing agricultural production due to rapid population growth and consequently increasing water demand in recent decades has led to uncontrolled withdrawal and drop in groundwater levels in Hamadan-Bahar plain. This has led to a sustained drop in groundwater level in the plain and it has caused it to be among the critical plains of the province. This phenomenon has caused water salinity in addition to damage to groundwater resources. The purpose of this study was to investigate the effect of groundwater salinity on potato yield. In order to investigate the effect of water salinity on potato yield, the yield function of this crop has been estimated. By random sampling method, data used from 119 farms were collected in the 2018-19 crop year and the amount of water salinity has been measured in two steps in the laboratory. Based on the criteria and the test, the production function was selected in the form of a quadratic function for estimating the relationships between variables. The results of this study indicate that with an increase of one unit in the amount of water salinity, the production of this product has decreased by 860 kg. The final productivity of water, seeds and chemical fertilizers are 0.2, 23 and -14, respectively, so, it can be said that potato farmers in Hamedan-Bahar plain use optimum amount of water, seed less than optimum amount and chemical fertilizer more than optimum amount. Manuscript profile -
Open Access Article
7 - Investigation of compressive strength and weight loss in high-temperature alkaline concrete
Mohammadhosseim MansourghanaeiEnvironmental protection plays an effective role in human health. In this regard, in recent decades, high-strength concrete in order to excel mechanical properties and durability and eliminate environmental disadvantages (due to the production of toxic carbon dioxide) i MoreEnvironmental protection plays an effective role in human health. In this regard, in recent decades, high-strength concrete in order to excel mechanical properties and durability and eliminate environmental disadvantages (due to the production of toxic carbon dioxide) in ordinary concrete, has been considered by civil engineering researchers. In this laboratory study, a mixing plan was made of ordinary concrete containing Portland cement with a grade of 500 kg/m3 and a mixing plan was made of alkaline concrete based on slag from a composing furnace. In order to evaluate the mechanical properties and durability, compressive strength and weight reduction tests of concrete were performed at 21 and 600 °C at a 90-day curing age in concrete. Applying high heat in concrete samples caused a decrease in the results of compressive strength test in ordinary concrete and reinforced concrete by 42.31% and 14.9%, respectively, and in weight loss test by 0.0067 and 0.0064%, respectively. Weight loss was achieved in ordinary concrete and alkaline concrete. Alkaline reinforced concrete in the compressive strength test at 21 and 600 degrees Celsius, showed an advantage of 11.41 and 64.35 percent compared to ordinary concrete. The results of scanning electron microscopy imaging test were in coordination with the results of other tests in this study. Manuscript profile -
Open Access Article
8 - Location of suitable areas for rural waste disposal (study area: Qasrshirin city)
mostafa tavakoli naghmeh habib mahmoodi chenari fereshteh jasemnejadWastes pollution is the source of many environmental problems. These pollutants cause water, soil and air resources pollution and destruction of natural landscapes and spread of disease, while waste disposal centers pose a threat to rural areas, despite the appropriate MoreWastes pollution is the source of many environmental problems. These pollutants cause water, soil and air resources pollution and destruction of natural landscapes and spread of disease, while waste disposal centers pose a threat to rural areas, despite the appropriate distance from urban centers. Determining areas suitable for landfills is one of the general strategies to deal with this crisis. In this research, which has been done by descriptive-analytical method and relying on library resources, after collecting raw layers related to 12 indicators (rural, urban, roads, water resources, floods, land use, pastures, soil, geology, faults, communication roads, etc.) and preparing distance maps and its scaling were investigated using linear software in GIS software of suitable areas for waste disposal in Qasr Shirin city due to its special location in terms of abundant water resources (mineral water and ecotourism). The results show that most of the city of Qasr Shirin is not suitable for waste disposal, these areas are shown in red in the final output of the models. Also, only the parts of the city are suitable for this purpose, which are marked in blue in the final output of the models. Manuscript profile -
Open Access Article
9 - Application of electrospun nanofibers for gaseous pollutants adsorption
hanieh shakiCarbon dioxide is the most important greenhouse gas that is released in large quantities into the atmosphere. Excess carbon dioxide in the atmosphere is a problem for earth and increase the temperature and creates problems that affect human existence, such as severe tor MoreCarbon dioxide is the most important greenhouse gas that is released in large quantities into the atmosphere. Excess carbon dioxide in the atmosphere is a problem for earth and increase the temperature and creates problems that affect human existence, such as severe tornadoes, storms, floods, droughts and acid rain. The largest source of outdoor CO2 is fossil fuel combustion, which are the main source of energy used to meet human energy demand now and in the near future. In recent years, nanofiber membranes have been highly regarded as pollutant adsorbents compared to conventional adsorbents, they have properties such as porous structure, high specific surface area, high penetration flux and selectivity, low pressure drop, high flexibility and targeted adsorption. So, electrospun nanofiber membranes have excellent potential for adsorption and separation of carbon dioxide from the air. In addition to the extremely high surface to volume ratio, modified electrospun nanofibers have different functional groups that improve their performance. Therefore, electrospun nanofiber membranes have excellent potential for adsorption and separation of carbon dioxide from the air Manuscript profile -
Open Access Article
10 - Value chain and commercial development of Sea buckthorn (Hipphophae rhamnoides L.) due to the country's food security
Hamid Ahani Pari AbdollahiPrevention of diseases, increase of body immunity and health and health attitude, along with income generation, which is one of the economic goals of every country, can be realized with the development of medicinal plants. The bitter elder species with the scientific na MorePrevention of diseases, increase of body immunity and health and health attitude, along with income generation, which is one of the economic goals of every country, can be realized with the development of medicinal plants. The bitter elder species with the scientific name Hipphophae rhamnoides L. and the English name sea buckthorn is native to Iran and has many values that have been introduced in this research. The economy of resistance, which is one of the general policies of the system, will happen with the production of multi-purpose plants due to the climatic and social political crises. The development of economic species with the participation of communities along with the green space fulfills the production of medicine and food.It can include a bank for the development of gardens outside the city or domestic and foreign investors. According to the permission of the Ministry of Jihad and Agriculture, as well as the approval of the Science and Technology Park, part of the people have become familiar with the properties of this beautiful and economic medicinal plant in our country, but this plant is still not known to the public. By planting this species as a multi-purpose species, it is also possible to generate income with the products of this plant such as leaves and fruits. This species tolerates temperatures up to minus forty degrees. The purpose of this research is to introduce the properties and effective ingredients of this plant to be a guide for decision makers and investors. Manuscript profile