Année de publication
1993
Auteurs
Maydell H J von; Young A; Kessler J J; Wiersum K F; Fries J; Neef A; Heidhues F; Wolf G V; Schroder J M
Langue
English
Mots clés
agroforestry, arid zones, databases, environmental management, land use, legislation, multipurpose trees, soil conservation, sustainability, tropics
Géographique
Niger