Deforestation around the world

30 de março de 2012

mar 30, 2012

Paulo Moutinho (ed.)

The study-cases reported here may call attention for the velocity we are losing our forests in a planetary scale and for inestimable impact that will have in human life quality, in wild life, in water, soil and air and in the world economy. To keep it short, it won’t be a surprise if the cost to fix the losses would overcome the investments we have done to achieve the present unsustainable development.

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Soil moisture depletion under simulated drought in the Amazon: impacts on deep root uptake

Soil moisture depletion under simulated drought in the Amazon: impacts on deep root uptake

Deep root water uptake in tropical Amazonian forests has been a major discovery during the last 15 yr. However, the effects of extended droughts, which may increase with climate change, on deep soil moisture utilization remain uncertain. The current study utilized a 1999–2005 record of volumetric water content (VWC) under a throughfall exclusion experiment to calibrate a one-dimensional model of the hydrologic system to estimate VWC, and to quantify the rate of root uptake through 11.5 m of soil.