... the availability of unemployed or underemployed manpower , the opportunity to reclaim sandy soils or halt erosion on ... cost and with many positive externalities which place it in a very good position to compete in world markets .

This is one of the reasons why teak is considered as one of the most valuable trees in the world . ... The natural resistance against fungus is very high . soil The tree prefers sandy to loamy soils with a good drainage .

Venezuela also can claim a success story with over 100 000 ha of Pinus caribaea planted on poor sandy savanna soils ... The lack of a concerted action plan adopted by all ( such as the World Conservation Strategy ) also confuses ...

Near Los Angeles , California , where the species grows well on poor sandy soil , the plantations have been highly ... Pots are more satisfactory as planting to the field may be done with a ball of earth and results in higher survival .

Definition and exploitation of forest tree ideotypes in Finland . ... Second World Consultation on Forest Tree Breeding , Washington , DC , 7–16 August 1969. FAO . ... Genetic variation in Ocala sand pine and its implications . Silv .

COWLES , H. C. The ecological relations of the vegetation on the sand dunes of Lake Michigan . ... P. W. The vegetation of Moraballi Creek British Guiana ; an ecological study of a limited area of tropical rain forest .

Table 1 Summary of main properties of the reference soils CR 6 to CR 9 -- CR 6 and CR 7 sandy loam in the upper 80 cm ... very low in the subsoil allophane dominantly under forest high , under pasture low in the topsoil high in the ...

During Pleistocene times , the deposits were elevated by earth movements and the rivers that flowed along the base of the ... from sandy to silty occurs at 24 ins . depth in the savanna soil and at 30 ins . depth in the forest soil .

( F.A.15 : 956 ) 1953. ( 153 BHIMAYA , C. P. , KAUL , R. N. y GANGULI , B. N. Sand dune rehabilitation in Western Rajasthan . In World Forestry Congress , 5th , Seattle , Washington , 1960. Proceedings . Washington , 1962. v . 1 , pp .

... 01016 Y PROVENANCE AND MOVEMENT OF DESERT SAND O 01017 Y PROVENANCE AND MOVEMENT OF DESERT SAND O 00625 BEAN 0. ... SYSTEMS AND THEIR POTENCIAL APPLICATION TO O EARTH RES 01236 SCANNING SYSTEMS TO O AGRICULTURE AND FORESTRY 0.