نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشآموختة کارشناسی ارشد، گروه مهندسی محیط زیست، دانشکده عمران، آب و محیط زیست، دانشگاه شهید بهشتی، تهران، ایران.
2 استادیار، گروه مهندسی محیط زیست، دانشکده عمران، آب و محیط زیست، دانشگاه شهید بهشتی، تهران، ایران.
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In Iran’s sustainability puzzle, the role of human time activities, specifically in agriculture, has long been overlooked. For this reason, we applied the MuSIASEM analytical tool on Aras river basin, as a case study, in order to analyze its socio-ecological development during 2006-2016. Our results show that the biophysical pressure both on water and energy pillars. Energy metabolic rate (EMR) and Water metabolic rate (WMR) both were shifted 34%, and 21% during the decade of analysis. The household and paid work sectors both have experienced an increase of 83% and 108% in their EMR and WMR, respectively. For assessing the underlying socio-economic factor, we continued the analysis into the lower level compartments of the societal hierarchy. In agriculture, industry and service sectors, while there was a reduction of 28%, 36% and 29% in human time investments, EMR and WMR were increased by 64%, 84 and 123 for energy, and 74% and 105% for water. We conclude the result with generating composite indicators in agriculture based on the concept of metabolic processor. This shows that a crop like irrigated legume consumed 7 times more water, 9 times more land, 6 times more energy compared to fruits in one ton of their output. Also, legumes brought 37% more net added value with 5 times human time investment compared to fruits.
کلیدواژهها [English]