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In the summer of 2003, a workshop was held in Portsmouth, NH, to discuss land measurement techniques for the North American Carbon Program. Over 40 sci- tists representing government agencies, academia and nonprofit research organi- tions located in Canada, the US and Mexico participated. During the course of the workshop a number of topics were discussed, with an emphasis on the following: • The need for an intermediate tier of carbon measurements. This level of study would be more extensive than state-level inventories of the US Forest Service Forest Inventory and Analysis Program, but less detailed than intensive ecos- tem studies sites such as those in Long Term Ecological Research net...
Much attention has been given to above ground biomass and its potential as a carbon sink, but in a mature forest ecosystem 40 to 60 percent of the stored carbon is below ground. As increasing numbers of forests are managed in a wide diversity of climates and soils, the importance of forest soils as a potential carbon sink grows. The Potenti
Claro, provocativo e persuasivo, Megaflorestas é uma inspiradora convocação para conservar as insubstituíveis matas nativas da Terra, combater os efeitos das mudanças climáticas e salvar o planeta. Com uma prosa magnífica, que evoca a majestade dessas florestas, bem como as pessoas e os animais que nelas habitam, John Reid e Thomas Lovejoy conduzem o leitor em uma jornada global emocionante. Cinco florestas extraordinariamente grandes ainda existem na Terra: a Taiga, que se estende desde o Oceano Pacífico por toda a Rússia e pelo extremo norte da Europa; a boreal norte-americana, que vai da costa do mar de Bering, no Alasca, até o litoral atlântico do Canadá; a Amazônia, que cob...