Figure 2.
Scopus trend of the documents on cultural ecosystem services from 2007 to 2021 (Data from Scopus online Database; accessed on 8 November 2021).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.