O impacto da regularização fundiária na economia verde
Estudo publicado pelo IPAM na revista Stanford Social Innovation Review Brasil, verificou a existência de 57 mil propriedades fora dos sistemas do INCRA, o que resulta em mais de 9,9 milhões de hectares de terras sem cadastro. Quando somadas às áreas já registradas...
Deep Soil Moisture Storage and Transpiration in Forests and Pastures of Seasonally-Dry Amazonia
To assess the impacts of land-use changes on plant-available water (PAW) and evapotranspiration (ET), volumetric water content (VWC) was measured to 8 m beneath three, adjacent ecosystems for four years (1991–1994). Estimates of PAW, ET, and deep drainage were...
Land-use in Amazonia and the Cerrado of Brazil
The total area and annual rate of native vegetation clearing is greatest in the Cerrado region followed by the Brazilian states of Pará, Mato Grosso, Maranhào and Rondônia. Amazonian forest clearing proceeds most quickly where abundant natural resources...
Upland agricultural and forestry development in the Amazon: sustainability, criticality and resilience
This paper provides an overview of agricultural and forestry development in the Amazon basin, and presents and discusses the main land use systems in evidence today in that region. These are logging, shifting-cultivation and ranching. The issue of sustainability is...
A Comparative Study of Tree Establishment in Abandoned Pasture and Mature Forest of Eastern Amazonia
In Amazonia, millions of hectares of forest have been converted to cattle pasture then abandoned. On sites with histories of heavy use, forest recovery is slow. We compared the process of tree establishment in an abandoned pasture with a history of heavy use and in...
Attracting parasitic flies (Diptera: Phoridae) to injured workers of the giant ant Dinoponera Gigantea (Hymenoptera: Formicidae)
Flies of the genus Apocephalus are common parasites of worker ants. Although the mechanisms used by parasitic flies to find their host are not well understood, olfactory cues have been suggested as the mechanism for host location, especially when the host ant is...
Análise Multitemporal do Uso do Solo e Mudança da Cobertura Vegetal em Antiga Área Agrícola da Amazônia Oriental
Landsat TM images from 1994 and 1991 were analyzed for Bragantina Region, the oldest post-Columbian agricultural landscape in eastern Amazônia. The objective of this work was the change detection of land use and vegetation cover in three counties of this region....