جستجوی مقالات مرتبط با کلیدواژه « کشاورزی شهری » در نشریات گروه « اکولوژی »

one of the strategies for sustainable urban development, preservation and development of urban agriculture as one of the main patterns of ecological development and sustainability, which has been a key role in urban ecological balance as well as being a key role in the creation of food security and employment. Therefore, the purpose of this study is to investigate the ecological and economic effects of urban agriculture on the sustainability of the urban environment.This study investigated the ecological and economic impacts of urban agriculture on urban environment sustainability using library resources and preparing a questionnaire and analyzing it with Spss software and ENVI-met simulator software has also been used to evaluate the environmental performance of agriculture in the city. In this study, the city of Tabriz has been selected as one of the major cities in the country to study these changes and the changes of Tabriz urban green spaces during the past decades have been analyzed and studied. Landsat satellite imagery has been used to evaluate these changes.The study of the obtained results shows that with the expansion of the city to the surrounding area and mainly on the green spaces and gardens of the city, major changes have taken place in the amount of green spaces. The results of the study of both ecological and economic functions indicate that the ecological impact of agriculture improves environmental conditions, thereby increasing production, employment and improving food security of urban communities and improving the economic status of cities.

Since such hydrological factors as precipitation and temperature, affected by climate change, are influential in simulating WEF processes, it is necessary to explore the problem. Currently the most reliable instrument for generating the climatic scenarios of the paired 3D models for the general flow of atmosphere and ocean. This study aims to use the existing water resources for urban sustainable development with a view to climate change. Based on two different scenarios of RCP2.6 and RCP8.5 for the 5th Evaluation Report by on Intergovernmental committee on climate changes, the output of HADGEM2 model was used and the city of Boroujerd, Iran, was chosen as the pilot location where the WEF Nexus approach has been adopted. The findings indicate that there will be a 1.5-3C˚ increase in temperature in the next period. Furthermore, in RCP2.6 scenario, it will experience as much as 20mm increase in precipitation and in RCP8.5 it will decrease by 40mm. The results from WEF model suggest that a centralized agricultural system accounts for 21.29% of the local demand for fruits and 272% of the local demand for vegetables while rainwater harvesting is responsible for 3.6% of the demand for fresh water resources. The water demand for urban irrigation purposes is supplied with urban sewage cycle and reconsumption. Biogas production and power generation from urban waste can daily supply 1.08% of the current electricity. This means that the cost of sewage management might be lower than that of renovation and new operation in urban sewage.