An emergy analysis is used to assess the sustainability of urban agglomerations’ eco-economic systems, which are generally measured by emergy–value indicators using a combination several system indicators. However, this assessment approach not applicable economically developed high-density agglomerations. The application traditional entropy value evaluation method needs be expanded further stre...

Aquaponics is a food production system that aims higher sustainability by integrating advantages gained from aquaculture and hydroponic production. to mimic the biological process happens in natural environment controlled system. As it can be applied small scales, aquaponics considered an important alternative for urban regions, which have low availability of agricultural land water resources. ...