共 24 条
[1]
Anderson D., The economics of afforestation, a case study in Africa, Occasional Paper No. 1, (1987)
[2]
Aronson J., Floret C., Le Floc'h E., Ovalle C., Pontanier R., pp. 8-17, (1993)
[3]
Breman H., Desertification control, the West African case: prevention is better than cure, Biotropica, 24, pp. 328-334, (1992)
[4]
Chandy K.T., Laban P., Mevis R., Van Walsum E., (1991)
[5]
(1990)
[6]
Ferf A., Laban P., (1992)
[7]
Fresco L.O., Kroonenberg S.B., Time and spatial scales in ecological sustainability, Land Use Policy, 14, pp. 155-168, (1992)
[8]
Guindo O., Van Campen W., (1991)
[9]
Holling C., Resilience and stability of ecological systems, Annual Review of Ecology and Systematics, 4, pp. 1-24, (1973)
[10]
Soil and water conservation in sub‐Saharan Africa, A Report Prepared for the International Fund for Agricultural Development by the Centre for Development Cooperation Services, (1992)