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a узбекскийqulay, oʻngʻay, shinam, orom beradiganрусскийуютный

a concept, introduced by A.Tensly, meaning a rather stable system of dynamic equilibrium, in which organisms and inorganic factors are full components. In other words, E. represents organisms, jointly operating on a section, and their communities interacting with environment.

artificially cultivated ecosystem (biogeocenosis), the basic functions of which (first of all, productivity) are maintained by a system of agronomical measures (ploughing, usage of fertilizers, chemical weed-killers and pest-killers, etc.). It differs from natural biogeocenosis by simplicity and, as a rule, by prevalence of cultural plants. Without support of a man, A. is quickly disintegrated, reverting to its natural state.

1. ecosystem, in a biotope of which there is prevail water as a liquide (e.g., lake, pond, swamp);

2. It means use of water of any kind, in and outside the river, lake or aquifer.

— progressive development as a result of interaction of autochthonous and allochthonous processes in an ecosystem on considerable territories.

capacity of a particular part of an ecosystem to change the qualitative indexes.