After 40 years of government induced settlement of the Brazilian Amazon, the core of this region has experienced surprisingly little deforestation. The agriculture and ranching that cause deforestation depend upon reliable roads, which are concentrated along the eastern and southern flanks of Amazonia. This ‘passive protection’ of central Amazonia may soon be lost, however, unless the proposed paving of roads through the core of the region is reassessed.
Soil Carbon Dynamics in Soybean Cropland and Forests in Mato Grosso, Brazil
Climate and land use models predict that tropical deforestation and conversion to cropland will produce a large flux of soil carbon (C) to the atmosphere from accelerated decomposition of soil organic matter (SOM). However, the C flux from the deep tropical soils...