déboisement

As the problems of impact assessement are rather intractable, a fairly simple dual approach is proposed. First the major components of environmental impact of current agricultural production systems in Africa (i.e. impact of cropping, livestock keeping, fuelwood and timber extraction and burning) are summarised.

As the problems of impact assessement are rather intractable, a fairly simple dual approach is proposed. First the major components of environmental impact of current agricultural production systems in Africa (i.e. impact of cropping, livestock keeping, fuelwood and timber extraction and burning) are summarised.

This paper describes the environmental degradation that has occurred in Kenya since early this century, initially due to the introduction of plantation farming. Forests have been further targeted for farmland, fuel wood, building materials and hardwood species. Range land species have also become threatened due to continued infiltration of the population.

El presente Decreto tiene por objeto establecer las condiciones bajo las cuales se realizarán las actividades de deforestación, movimientos de tierra, estabilización de taludes, arborización de áreas verdes y todo lo relacionado con la protección de los suelos.

This Statement outlines agreed objectives and policies for the future of Australia's public and private forests. The Governments share a vision of ecologically sustainable management of Australia's forests.

As in the past, the Unasylva issue immediately preceding the World Forestry Congress examines a number of the broad challenges facing forestry. In an interview, FAO Director General Edouard Saouma considers the world forestry situation and highlights the Organization's priorities for work in forestry over the coming decade.

Al igual que con ocasin de los anteriores congresos, este nmero de Unasylva, que precede inmediatamente a la inauguracin, est dedicado a algunos de los principales problemas relativos a la materia forestal. En una entrevista, el Director General de la FAO, E.

Para que produzcan los resultados apetecidos, las actividades de ordenacin de cuencas hidrogrficas han de incorporar hidrologa forestal, conservacin de suelos y aguas y planificacin del uso de la tierra en un marco lgico ms amplio que tome en consideracin no slo los fenmenos fsicos, sino tambin los factores econmicos, sociales e institucionales.