An analysis of energy use, CO2 emissions and relation between energy inputs and yield of hazelnut production in Guilan province of Iran
Journal Title: International journal of Advanced Biological and Biomedical Research - Year 2013, Vol 1, Issue 12
Abstract
The objectives of this research were to investigate influences of energy inputs and energy forms on output levels and evaluation of CO2 emissions for hazelnut production in Guilan province of Iran. Moreover, the sensitivity analysis was done by marginal physical productivity (MPP) method for energy inputs and energy using linear regression. Initial data were collected from 120 orchardists in September and October 2012. The total energy of 2862.62 MJ ha-1 was calculated for gardening in one year. The results of energy forms analysis revealed the share of non-renewable and indirect energy was more than renewable and direct energy, significantly. The ratio of energy output to energy input was approximately 3.93. Total CO2 emissions of hazelnut production was calculated as 77.66 kgCO2eq. ha-1. Also, the diesel fuel had the highest share of emissions among all inputs with 33.84%. Econometric model estimation indicated that the impact of human labor, machinery, diesel fuel and pesticides energy inputs were significantly positive on hazelnut yield. The sensitivity analysis was presented that the marginal physical productivity (MPP) value of pesticides, farmyard manure and diesel fuel energy were the highest with 9.43 and -4.86 and 0.97, respectively. In energy forms econometric models, impact of direct, indirect and renewable energies were significantly. Furthermore, direct and renewable energies was the most sensitive groups in energy forms with MPP value of 0.98 and 1.19, respectively.
Authors and Affiliations
Ashkan Nabavi-Pelesaraei| Department of Agricultural Machinery Engineering, Faculty of Agriculture, University of Tabriz, Iran, Ahmad Sadeghzadeh| Technical and Vocational University, Tehran, Iran, Mir Hossein Payman| Department of Agricultural Machinery Engineering, Faculty of Agriculture, University of Guilan, Iran, Hassan Ghasemi Mobtaker| Young Researches Club, Tabriz Branch, Islamic Azad University, Tabriz, Iran, Corresponding Author E-mail: mr.mobtaker@yahoo.com
Keywords
Related Articles
- EP ID EP12780
- DOI -
- Views 476
- Downloads 30
Assessment of Tasoki-Rigchah critical area in wind erosion production in Sistan plain
In order to determine the source and critical areas of wind Erosion, Sistan Plain, IRIFR-E.A method was applied. According to geomorphological investigations, the studied area consists of the following two main units n...
Effect of Acyclovir on the Viability of Chicken Embryo During the Developmental Stage
Objective: In recent years, antiviral drugs have been used widely in the glob to prevent and treat viral diseases. They injected into eggs to eliminate pathogens and prevent of egg transmission of disease, but the adve...
Effect of foliar spray of urea and soil application of vermicompost on essential oil and chlorophyll content of green Mint (Mentha spicata L.)
Essential oils from aerial parts of Mentha spicata, was obtained by steam destillation using a Clevengertype system. These oils were screened for antibacterial and anti-Candida albicans activity using bioautographic met...
Investigation of Farmers' Attitude Towards Agricultural Services of Private Sector, in Islam Abad Gharb County in Iran
Objective: The agricultural sector is one of the most important and the most basic of productive and economic sectors in each country, and support of this sector is a very important issue in many countries around the w...
Influence of inter and intra row spacing on growth and yield of Vernonia (Vernonia galamensis Cass.)
Vernonia galamensis Cass is a huge potential industrial crop with very high content of vernolic acid in the seed oil. The experiment was carried out to determine the effect of inter- and intra- row spacing on the yield...