|
rdf:value
|
-
Ecosystems can be classified according to various criteria: from the point of view of energy source, two major types of ecosystems can be distinguished. Autotrophic ecosystems have primary producers as a principal component and sunlight has the major initial energy source; etherotrophic ecosystems depend upon preformed organic matter that is imported from autotrophic ecosystems elsewhere. Ecosystems can also be classified in terrestrial, marine and freshwater.
(en)
|
![[This page as RDF]](http://opendata.inra.fr/anaeeThes/static/rdf-icon.gif){kind=icon}