Research Article

Emergy Comparison of Typical Coastal Urban Ecosystems in China

Table 2

ESI reference classification.

Index rangeSignificance of indicators

ESI < 1Developed regions, which are eco-economic systems driven by high consumption, with less sustainability
1 ≤ ESI ≤ 10Developing regions, full of vitality and development potential
ESI > 10Underdeveloped areas, the system has insufficient resource development and utilization and is highly sustainable