translate English to French: In most ecosystems, nutrients largely cycle in place (e.g., between the sediments and water in the case of lakes), and the cycle is often depicted as a circle whereby nutrients move from one compartment (or "pool") to another, eventually returning to the original pool.
la plupart des écosystèmes, le cycle des éléments nutritifs se déroule en bonne partie sur place (p. ex. entre les sédiments et l’eau dans le cas des lacs).