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The forest resource base
Historical perspectives on forest resource
8 other sections not shown
addition afforestation Africa agriculture America amount annual become cause cent century Chapter cleared climate closed compared concern conservation contraction countries cubic metres decrease deforestation destruction developed world early economic effects environmental established estimates Europe example exist expansion exploitation exports extent factors farming Figure followed forest area forest products forest resource forestry fuelwood function global growing growth half hand harvesting important increased indicated industrial issues land least less levels logging loss major means million hectares natural North objectives occur owners ownership particular pattern perhaps period plantations planting policies population practice pressures problems proportion protection rates recent recreation reduced relative remains removal result scale significant similar soil Source South species suggested supply Table timber production transition trees trends tropical forest United usually various wood wood production woodland yield