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Showing items 1 through 4 of 4.An international journal of forestry and forest industries
Dans sa premire partie, cette tude tente de faire le point de la situation de l'effort de pche actuel exerc dans les principaux plans d'caux du Pays. Les seuls paramtres disponibles pour cette valuation datent de 10 20 ans, aucune donne plus rcente n'ayant t recueillie.
There is a urgent need for a better understanding of the risks of soil degradation and their geographical distribution as well as a better knowledge of where degradation occurs at present.
A major problem facing the areas already under cultivation, is the seriousness of soil degradation and loss of soil fertility due to indiscriminate misuse of agricultural lands, forests and grazing lands.
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