Fig. 2
Comparative trends on journal articles published on ecosystem and forest ecosystem services from 2005 to 2018 using science direct database. According to the data source of science direct since 2005 to 2018, more number of articles were published on ecosystem services mainly after the publication of the Millennium Ecosystem Assessment. The publication linked to forest ecosystem services are not that increasing like the ecosystem services research trends. A very small number of articles were produced to map, value and quantify forest based ecosystem services