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Journal Articles & Books
Novembro 1991

Extensive grazing is the predominant form of land use on at least a quarter of the world’s land surface, in which livestock are raised on food that comes mainly from rangelands. Extensive grazing differs from crop or forestry production, in which the produce remains in situ whilst growing.…

Journal Articles & Books
Novembro 1991

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Journal Articles & Books
Novembro 1991

Throughout history, the forests have been valued for the multiplicity of products and benefits that they provide, both for subsistence and for trade: foods, medicines, spices, resins, gums, latexes, wildlife, fuelwood, and of course timber and other wood products. The literature is rich with…

Journal Articles & Books
Novembro 1991

To produce the desired results, therefore, watershed management efforts must incorporate "forest hydrology", "soil and water conservation" and "land use planning" into a broader, logical framework that takes into consideration not only physical interrelationships…

Policy Papers & Briefs
Dezembro 1990

First Annual Conference on Agricultural Policy and the Environment; Proceedings of a Conference Sponsored by University of Minnesota, Center for International Food and Agricultural Policy; Agricultural Development Regional Agency (ESAV); University of Padova, Motta di Livenza, Italy, June 19-23…

Policy Papers & Briefs
Dezembro 1990

First Annual Conference on Agricultural Policy and the Environment; Proceedings of a Conference Sponsored by University of Minnesota, Center for International Food and Agricultural Policy; Agricultural Development Regional Agency (ESAV); University of Padova, Motta di Livenza, Italy, June 19-23…

Policy Papers & Briefs
Novembro 1990

This report summarises results and recommendations arising from phase one of the Sepik River Fish Stock Enhancement Project. This phase investigated and evaluated the need for fish stocking of the Sepik and Ramu Rivers in Papua New Guinea.

Journal Articles & Books
Novembro 1990

Depending on land management objectives, plus a host of environmental variables, fire will sometimes be an enemy, at other times a friend; in nearly all cases, however, it will continue to exert a powerful influence on natural resource ecosystems. This being so, consideration of the potential…

Journal Articles & Books
Novembro 1990

This document is prepared for fisheries biologists, managers and administrators concerned with lagoon fisheries and aquaculture. Our main objective is to draw attention to the need for greater understanding of relationships between the hydraulics and productivity of lagoon fish and shellfish.…