Fig. 3From: Public policies and conservation plans of historic urban landscapes under the sustainable heritage tourism milieu: discussions on the equilibrium model on Kulangsu Island, UNESCO World Heritage site(Source: the Management Committee of Xiamen Kulangsu Island-Wanshishan Scenic Area, China)Historic urban landscapes of Kulangsu Island in 1868, 1890, the 1910s, and 1920s Back to article page