Beijing, May 25 -- Beijing has recorded more than 7,000 species, placing its biodiversity level among the world's leading megacities, the municipal ecology and environment bureau said.

According to the bureau, during the 14th Five-Year Plan period (2021-2025), the city saw steady improvements in its ecological environment.

A total of 151 types of natural and semi-natural ecosystems and 7,121 species were documented through citywide surveys, demonstrating remarkable progress in biodiversity conservation and placing Beijing at the forefront of global megacities in this regard.

By international standards, a city recording 3,000 to 5,000 species is considered to have a high level of biodiversity, while more than 5,000 species represents an...