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Abstract Background & Objective: Agriculture is one of the most important activities, whereas observing ethical dimensions (human, environment, animals, society, economy and policy) are necessary. Therefore the purpose of this study was develop strategies to apply ethics in agricultural in Sonqor County. Materials &Methods: This study is a Qual-Quan research. The study population consisted of experts and farmers producing healthy products in the city of Sonqor (n = 32) who were selected purposefully. Results: Based on results, comprehensive government attention to Agricultural ethic and financial, technical, and legal support from the farm food to the table ( ) as a first strategy and evelopment of good agricultural production for all products, regional, national, international contracts and agreements in order to meet the needs of healthy consumer markets ( ) as a second important strategy was recognized which both of them are among the aggressive strategies. Also result showed that considering ethical actions towards development of sustainable agricultural, allocation of annual budgets, leading agricultural education to ethical agriculture (WO) are the most important conservative startegies. Conclusion: in the current situation in study the, aggressive strategies should be prioritized. This means that with considering the factors affecting the non-observance of ethics in agriculture, instutational development in this area, amend the rules, guidelines and most important social institutions and ethicl norms in the community of farmers need to be addressed in this county. In this regard the approach of farmers and related organizations should be changed toward appliying manifest of ethic in agriculture.

One of the main sources of greenhouse gas (GHG) emissions is the use of energy for groundwater pumping. Reducing energy consumption is very important to achieve the environmental sustainability and decrease the climate change impacts. In this paper, the amount of greenhouse gas emissions from groundwater pumping in the Guilan’s aquifers was investigated. Firstly, groundwater depletion and the types of pumps for water pumping were examined in the current condition; then, the values of consumed energy, GHG emissions and climate change indicator of the current condition were estimated. The primary investigations showed that 55 percent of wells in the studied region had a diesel engine pump, while 51.3 percent of the required energy for groundwater pumping was supplied by electric pump. Calculated total GHG emissions and the value of climate change indicator in the current condition were equal to 8.98 and 7.59 Milion kg CO2 eq , respectively. In order to achieve environmental sustainability and energy security, scenarios of replacing electric pumps and applying solar energy were examined. The results of the scenarios showed that diesel fuel wells had no significant effect on the reduction of greenhouse gas emissions, but the use of solar energy reduced them. GHG emissions, in comparison with the base scenarios, were decreased by 44.4% in June, July and August, respectively, by applying the scenario of using the solar pump in agricultural section. Therefore, it is preferred to apply policies in future planning to use renewable energies such as solar energy instead of diesel and electricity energy.

According to TAVANIR company`s statistics, despite fulfilling the electricity supply plans to the villages with more than 20 families in rural areas of Iran, Still, more than 17,000 rural families in villages ,with populations less than 20 families, are deprived from accessing to the electricity. Production Losses, transmission and distribution of electricity and the distribution of the population cause use of solar energy in remote areas. Hence, photovoltaic systems, because of direct conversion of solar energy into electricity without the need for sophisticated equipment are important. In this paper, an economic evaluation of Off Grid photovoltaic systems against national power grid has been studied in Tehran villages, due to the uncertainty in modeling; Monte Carlo simulation with 2000 iterations was used. We did Economic evaluation, using the life cycle cost of a photovoltaic system for a period of 25 to 30 years as well as the development costs for the power grid to remote villages. The paper shows the minimum distance of the village distribution network that the photovoltaic system is more economical than the national power grid development. This distance has inverse relation with discount rate as well as direct relation with the number of cloudy days and the number of rural families.

Background and Objectives: As a green fuel and environmentally friendly energy, biodiesel has recently attracted much attention and efforts are ongoing to optimizing biodiesel production from microalgae’s. The aim of this study was to determine the appropriate method of dewatering and drying biomass and selecting a suitable organic solvent for extraction lipids from biomass. Materials and Methods: After culturing Nannochloropsis Oculata in Gillard F/2 medium and reaching at the end of the stationary growth phase, algal biomass was separated from aqueous by centrifuge and drying in three methods: fore, air-dried and lyophilized. Lipid extractions of each sample was performed using soxhlet apparatus and three solvents including diethyl ether, n-hexane and n-pentane. At each stage, the quantity and quality of the extracted lipids was determined by gas chromatography. Results: In all three drying methods, palmitic acid and palmitoleic acid were significantly the main fatty acid composition of microalgae. The fatty acid composition of palmitic acid extracted by diethyl ether was significantly more than the other two solvents. Maximum production of triglyceride was observed in air dried and lyophilized (using diethyl ether solvent) microalgae as 75.03 and 76.72 % of fatty acid respectively. Conclusion: The use of lyophilized method for dewatering and drying of biomass and diethyl ether as solvent for the extraction of lipids from biomass yielded more compared with other methods studied in this paper and would be more efficient in research works related to the production of biodiesel from microalgae’s lipid.

The purpose of this study was to analyse the relationship between ecological awareness and rice-field knowledge of paddy field women in Bandar- E Anzali and sustainable agriculture criteria observation extent. The research method used descriptive-analytic that is performed relative – causal method. The population included paddy field women, over 25 years old in two region. In this research, 275 women were selected with systematic sampling method. Instruments reliability was estimated by calculating Cronbach's alpha coefficient by SPSS/win. The descriptive findings showed that the research's paddy field women have good knowledge regarding ecological awareness and rice-field. Also, they are observing sustainability criteria in farming approximately. The analytic finding showed that there exists significant difference (%1) between the mean of observing sustainability criteria in farming, level of education, kind of ownership to field-rice and kind of used seed. Also, there exists positive significant correlation (p=%99) between age, past record paddy field, the measure of social participation, paddy field annual income, ecological awareness and paddy field knowledge and observing sustainability criteria in agriculture. But there exists negative significant correlation (p=%99) between the measure of paddy field participation and number of member household and observing sustainability criteria in farming. The measure of rice production and paddy field annual income as independent variable have maximum role and rate in analyzing of dependent variable.

Nowadays, in water resources management, climate change is one of the main challenges. Changes in the water cycle are one of the most important of ground responses to warming it (IPCC 2014). Changes of precipitation and temperature caused by climate change, will damage to the products of garden and agricultural. Therefore, in order to increase the food security in future periods, it is necessary to evaluate the climate change impacts on the agricultural of regions and provide adaptation strategies its. So Regarding the importance of climate change, the purpose of this study is simulating the performance of the agricultural sector Hashtgerd Plain under climate change impacts in the future period (2020-2049).

Estimation of forest aboveground biomass is important in regional carbon policies and sustainable forest management. Since forests are the largest carbon store, it is important to evaluate the forest biomass to estimate carbon storage and its impacts on climate change in global scale. Optical and active microwave remote sensing data both play important roles in forest biomass monitoring. Our aims in this research are biomass modeling and estimation using multilayer perceptron neural network in Gorazbon district, Kheyroud Forest in Mazandaran province. Estimation was performed using the Landsat and ALOS PALSAR dataset and also 201 ground sample plots in two years of 2007 and 2012. The capability of the ALOS PALSAR Global Mosaic product with 25 m resolution was also evaluated in biomass estimation. The effects of environmental factors such as slope and aspect were specifically evaluated on the accuracy of biomass estimation. Finally, the best model was presented in 2012 by ALOS PALSAR Global Mosaic product with R2= 0.83 and RMSE = 108.99 which has very little difference from other optical and radar images. According to the research results, newer sensors using up-to-date technology will deliver much better results compared to the previous generations. Of course, to ensure these results, it is necessary to conduct additional studies in this field as well.

Iran is located in the dry belt of the earth and is predicted to face water stress in the next half-century. Currently, the area of sugarcane cultivation in Khuzestan is over 85,000 hectares and due to the high water needs of sugarcane and drought conditions, optimization of water consumption and irrigation management is necessary to continue production. Therefore, in this study, the values of soil moisture, canopy cover, biomass yield in five treatments and irrigation levels (start of irrigation at 40%, 50%, 60%, 70%, and 80% soil moisture discharge) during 2 planting dates in the crop year 2015-2016 on sugarcane cultivar CP69-1062 in Amirkabir sugarcane cultivation and industry located in the south of Khuzestan was simulated by AquaCrop model. The measured data on the first culture date (D1) and the second culture date (D2) were used to calibrate and validate the model. The results of NRMSE statistics in canopy cover simulation in calibration and validation sets with values of 2.1 to 15.6% and 3.8 to 18.3%, respectively, and in biomass simulation with values of 6.2 to 15.2%, and 9.5 to 12.6%, respectively and coefficient of determination (R2), range 0.98 to 0.99 indicated that the high ability of the AquaCrop model in simulation canopy cover and biomass yield. whereas, the values of NRMSE of soil depth moisture in the calibration and validation sets ranged from 11.6 to 23.8, and 12.2 to 22.7, respectively, with a coefficient of determination (R2), 0.73 to 0.96 (calibration) 0.8 to 0.93 (validation) showed less accuracy of the model in the simulation. The best scenario is related to the third proposal that water consumption, water use efficiency, and yield are 1710 mm, 1.53, and 42.27 tons per hectare, respectively, which shows a reduction in water consumption of 360 mm.

Economic development and increased demand for energy make it necessary for the use of renewable and non-renewable energy sources. Raw solid wastes, as one of the sources of biogas, contribute significantly to the creation of a type of renewable energy. Reviews show that biomass energy can be considered as an alternative to fossil fuels. In addition to its fewer harmful effects on the environment, it is an inexhaustible source of energy. The general purpose of this research is to explain a conceptual framework of using renewable energy in rural areas based on biological resources. To operationalize this target, we designed a conceptual framework by designing valid internal and external sources in the field of research. Then, based on the conceptual framework, we calculated the amount of energy extracted in the garden, crop, livestock, and household parts of the under-studied village. In the following, considering the baseline calculations of energy, we presented applied scenarios. The results show that the total amount of energy obtained from biomass is 70857266.1 kJ. By defining multiple scenarios, the energy obtained from the biomass sector can suplly 17.17% of household electricity consumption, 2.60% of gas consumption, 68.58% of the energy needed for public lighting of rural pathways, 54.67% of electricity required for pumping the village water to natural resources lands with 131 meters high, 70.3% of power needed for sprinkler irrigations, and 60.42% of the electricity required for drip irrigation.

The purpose of this study is the evaluation of bagasse pith for heating energy and activated carbon production. To assess the energy production of the pith, bulk density, melting point, and heating value were measured. Furthermore, percentage of moisture, ash, volatile compounds, fixed carbon, lignin, and elements contents were determined. Ash and volatile content average were measured at 30.23% and 67.14%, respectively. The bulk density average of the pith powder with 80 meshes was determined at 0.15 g/cm3. Lignin content and melting point of pith is measured 23.1%, and 1050 °C, respectively. Sulfur content is important in terms of environmental pollution and it was determined 0.3%. Gross heating value was measured directly by calorimeter bomb to 10.30 MJ/kg that is lower than bagasse and wood. The activated carbon produced from pyrolysis of bagasse pith was chemically activated with zinc chloride. The chemically activated carbons were characterized by measuring iodine of 504 mg/g, specific surface (BET) of 478 m2/g, and pore diameter of 7.45 nanometer. It is suitable for liquid absorption according to the pore size.