Loi-cadre nº 94-018 relative à l'environnement.
Cette loi porte régime de base en matière d'environnement. Elle vise, notamment, à: préserver la diversité et l'intégrité de l'environnement; créer les conditions d'une utilisation quantitativement et qualitativement durable des ressources naturelles; garantir à tous les citoyens un cadre de vie écologiquement sain et équilibré. Les citoyens sont tenus à participer collectivement pour la sauvegarde de l'environnement.
New challenges for resource and environment data for policy research
A survey of the farming systems of Vertisol areas of the Ethiopian highlands
In 1986, ILCA carried out informal surveys at Dogollo and Inewari in order to understand the farming systems. Such surveys were also conducted by the Institute of Agricultural Research (IAR) at Ginchi in 1986 and by the Alemaya University of Agriculture at Ada/Debre Zeit in 1988/89. This was followed by one-time detailed formal farm surveys at Dogollo, Inewari and Ginchi in 1988/89. This chapter mostly presents the results of these formal surveys.
Areas legalmente protegidas y su relación con la frontera agrícola en el trópico americano
General comments related to rapid rural surveys, Cerrados : crop pasture integration
Improving natural resource management for an Andean watershed using an interactive coupled GIS/watershed model: quantifying and predicting the effect of land use practices on erosion, water quality, and crop production for the Ovejas watershed, Colombi...
Planteamiento y resolución de conflictos en la cuenca del Rio Ovejas
Forest resources assessment 1990 - Tropical countries
The main objectives of the present assessment were: (i) to provide reliable and globally consistent information on the state of the tropical forests by 1990 and the rates of change during 1981 to 1990 and (ii) to undertake studies on the process of deforestation and forest degradation and their environmental implications.
Forest resources assessment
This issue of Unasylva focuses on the recently completed FAO assessment of forest resources at a global level, with 1990 taken as the reference year (a similar assessment was undertaken a decade ago). The articles presented in this issue consider the data generated in the assessment as well as some of the difficult underlying questions inherent in forest resource assessment.