English AGROVOC
uf
Biogeochemical cycle
uf
Nutrient cycling in ecosystems
NT
Carbon cycle
NT
Hydrological cycle
NT
Nitrogen cycle
RT
Ecosystems
RT
Primary productivity
(Lao)
ການເປັນວົງຈອນ
(French)
Cycle biogéochimique
(Spanish)
Ciclo biogeoquímico