In this article we evaluate the economic viability of forest fallows managed with planted timber tree species to replenish soils and provide economically valuable timber . At a 5 % real interest rate , the enriched fallow - subsistence ...

Managing Forest Fallows : Improving the Economics of Swidden Agriculture Table 1. Top - soil ( 0-15 cm ) characteristics. The use of improved fallows has been proposed as a management alternative to shifting cultivation in the tropics .

Managing Forest Fallows : Improving the Economics of Swidden Agriculture Table 1. ... Managed fallows are quite widespread in the Americas , producing biological and economic benefits , however , cases in which both advantages are ...

Managing forest fallows : improving the economics of swidden agriculture , Ambio , 26 ( 2 ) : 118–123 . Montagnini , F. , and Sancho , F. , 1990a . Impacts of native trees on tropical soils : a study in the Atlantic lowlands of Costa ...

Managed Forest Fallows Improved fallows have been proposed as a management alternative to shifting cultivation in the tropics ( Nair 1990 , Kass et al . 1993 ) . Traditionally shifting cultivators have encouraged the presence of certain ...

Farmer management of on - farm tree cover The existing patterns of on - farm tree cover reflect farmer decisions to ... and the removal of forest fallows or secondary forest to establish pastures or crop fields , whereas activities that ...

Forest Management or Conservation The management of fallows , secondary forests or tree plantations may be attractive alternatives to grazing systems when large quantities of land are found in semi- or completely abandoned pastures or ...

International Symposium / Workshop on the Management and Rehabilitation of Degraded Lands and Secondary Forests in ... of secondary forest management : ( 1 ) Before 1850 , characterized by migratory agriculture and fallow forests ...

Management Did you execute any kind of management ? cleaning , removing bad trees , collecting seedlings , other ? need for forest management . Activities last year What activities did you execute last year ? Fallow harvesting ...

Soil fertility dynamics after converting a forest fallow Ultisol into continuous crop production with ( ○ ) and without ( 0 ) fertilization . Yurimaguas ( 1972-1980 ) . Source : NCSU ( 1982 ) . exchangeable aluminium to toxic levels ...