Land Degradation Corporate author IUCN Date 1990 Source IUCN (ID: MON-092220) Title (French) Dégradation des sols Title (Spanish) Degradación de tierras Reference number GA 1990 REC 023 (18.23) Publisher | Place of publication IUCN | Gland, Switzerland Document type Soft law - Declaration/recommendation Conference name | place | date IUCN General Assembly | Perth, Australia | 19901128-19901205 Language English, French, Spanish Field of application International Subject Environment gen. Keyword Capacity building Land-use planning Education Full text GA_18_REC_023_Land_Degradation.pdf GA_18_FR_23.pdf GA_18_023_ES.pdf Website portals.iucn.org