What is the difference between the concepts of ecosystem and biogeocenosis?

Ecosystem and biogeocenosis are very similar concepts in their meaning. This is a certain territory that has approximately the same living conditions for living organisms. In this area, there are various types of plants, animals, fungi and microorganisms. They all interact with each other. Also, all these organisms are among themselves in food chains. A forest, park, lake, meadow and other natural communities can be called both an ecosystem and a biogeocenosis. The only difference is that the ecosystem can include various biogeocenoses.