REUTERS.: Amazon deforestation drops sharply: Brazil govt. Bsb, Agosto, 2007. You can reed the article here - http://reut.rs/e0QPQCArticle produced by Reuters, in August 2007, says that the deforestation of the Amazon rain forest in Brazil fell by about a third in...

Root penetration rate was estimated for the liana Davilla kunthii St. Hill (Dilleniaceae) in a secondary forest in eastern Amazonia by relating aboveground growth with root depth measurements. Basal diameter, height, number of leaves and number of scars of...