Question

why are forests considered as a self sustaining ecosystem ?​

Answer 1

Answer:

The soil of forests also get replenished by the decomposition of of dead organic matter

In this there is producers as plants , consumers as primary consumer;herbivorusas secondary consumer and carnivorus as teritary consumer even in forest there is food chain which cannot be destroyed by anyone until and unless the new species come to it.Hence many decomposers like bacteria , fungi etc. the decay matter helps for the growth of plant healthy . Like this many are which refered to make forest as self balanced and sustained