Table 1 Classification of urban development scale.

From: Evaluation of synergistic and regulatory effects of carbon-reduction and water-saving in the Yangtze River Delta Urban Agglomeration

Urban development scale

Urban permanent population(104 people)

City

Large scale cities

Population greater than 1 million

Shanghai, Nanjing, Wuxi, Changzhou, Suzhou, Nantong, Yangzhou, Yancheng, Hangzhou, Ningbo, Wenzhou, Shaoxing, Taizhou (Zhejiang), Hefei, Wuhu

Medium scale cities

Population between 500 thousand and 1 million

Zhenjiang, Taizhou (Jiangsu), Jiaxing, Jinhua, Zhoushan, Maanshan, Anqing, Chuzhou

Small scale cities

Population less than 500 thousand

Huzhou, Tongling, Chizhou, Xuancheng