LAND USE BY SUBGROUPS Relation between soil productivity and taxonomic classification of the order Ultisol a ) b ) Sub - order ... The fauna These sparsely populated lands are covered with rain forest vegetation . is rather scarce .

statistics for tropical Latin America , are not self sufficient for forest produce despite an abundance of forest land , and , in order to meet the rising demand for forest produce , productivity of the forest must be increased .

This book brings together recent advances in the research on the ecological functioning of the soil litter system of tropical plantation forests in relation to their management, which is of crucial importance for the growth of trees and ...

Considerable understanding of forest stand dynamics and productivity has been gained from the major research initiative at Paracou , French Guiana ( e.g. Schmitt and Bariteau , 1990 ) , even though the complete botanical identification ...

Country documents 173 forestry sector . ... A negative lesson can be learned from the fate of the native forest , which was supported by no clear policies on forest improvement , productive technologies , market studies or information .

The silvicultural practices have also altered forest productivity which is directly related to age , stand productivity ( site index ) and stand density . Within these factors , stand density has to be emphasized because it is directly ...

BAKER , J.B. Bedding and fertilization influence on slash pine development in the Florida Sandhills . Forest Science 19 : 135-138 . 1973 . A 4. BENGTSON , G.W. Strategies for maintaining forest productivity : researcher's perspective .

Productivity of tropical rain forest ecosystems and the implications of their use on future wood and energy sources . In : Golley F.B. ( ed ) . Ecosystems of the world . Vol 14A , p . 117-136 . Elsevier , Amsterdam , The Netherlands ...

4 Forest Site Productivity 4 . 4 . 1 Research in Site Productivity 4 . 4 . 2 Training in Site Productivity 4 . 4 . 3 Technical Assistance in Site Productivity 4 . 5 Forest Entomology 4 . 5 . 1 Research in Forest Entomology 4 . 5 .