1. Introduction

Ecosystem services represent the benefits that people obtain from natural ecosystems and are broadly understood as ecosystem processes which keep society alive. Ecosystem services are products or services provided by nature to keep people on the Earth alive. They include ecological and socio-economic aspects of ecosystems and demonstrate the dependency of people on ecosystems.

In our environment, where all social, economic and cultural (as well as immoral, uneconomic and uncivilized) activities take place, different services are provided by different kinds of ecosystems.
