Formuvannya metodychnykh pidkhodiv do modelyuvannya kompleksnoyi ekonomichnoyi otsinky ekosystemnykh posluh

Economic value of services set within a given ecosystem considered as the sum of each component estimates in the first approximation. This simplification is acceptable only in case of considering the system as static while the structure and content of all processes would remain unchanged throughout the assessment period. Taking into account the dynamics cannot be limited only by marginal analysis, because in this case only one ecoservice impacts other, and there is a need to consider the ecosystem as a system, where all components interact according to the principle "all affect all". In addition, changes in the ecosystem will likely be not one-time, when the consequences of events distributed in time, will accumulate each other, complicating the system relationships. Taking into account these factors, the scientific and methodical approach to modelling integrated economic value of ecosystem services set is proposed in the article. The approach takes into account ecoservices mutual influence and event-driven nature of their dynamics.