To be honest, Xiamen has few natural resources. Marine resources should be the largest natural resources in Xiamen, as well as mangroves, fish (amphioxus and the like) and birds (egrets and the like). Give you several websites for your comprehensive reference.
/Destination/Xiamen 6 1/Content/
/A-xmdxxb2005z 1008.html
/A-hykx2002 10003.html