He said the city has also issued a number of legal regulations and compiled a master list on wetland protection, to safeguard its ecological resources.

"A good ecological environment is the biggest asset, providing a core competitiveness for Haikou's sustainable development," said Zhang Qi, a member of Standing Committee of the Hainan Provincial Party Committee and Party secretary of Haikou, adding that the city will strive to create more ecological facilities and services for its people.