The Amazon floodplain Demonstration Site: Sustainable timber production and management of Central Amazonian white-water floodplains

Growth and population structure of the tree species Malouetia tamaquarina (Aubl.) (Apocynaceae) in the central Amazonian floodplain forests and their implication for management

“…Consequently, várzea floodplain forests are one of the most stressed and threatened forest ecosystems in the Amazon. Many várzea trees are utilized and commercially harvested for a variety of different purposes comprising timber and NWFPs (Phillips et al, 1994;Parolin, 2000;Kvist et al, 2001;Bentes-Gama et al, 2002;Wittmann et al, 2009). In general, floodplain inhabitants have preserved an inti- mate knowledge of the floodplain environment and its resources (e.g., Hiraoka, 1992;Padoch, 1988;Junk et al, 2000), but intensive commercial exploitations of a few tree species, carried out without knowledge of their growth rates, population structures, and regeneration processes, have locally exhausted merchantable stocks and caused already the disappearance of some timber species from local and regional markets within only a few decades (Ayres, 1993;Lima et al, 2005;Schöngart and Queiroz, 2010).…”

Flood as a fine scale driver of both floristic and functional differentiation in a ripariansystem

“…Floodplains exist worldwide, but they are in threat because of global climate change, the overuse of natural resources and, anthropogenic exploitation (Sanjerehei and Rundel 2017). It faces the exploitation of wood for rewood production, housing in oodplains, pasture formation, water catchment, hydroelectric plants, agricultural drainage (Wittmann et al 2009). These factors can, directly and indirectly, affect, respectively, the distribution of precipitation and ow.…”

Dendrocronologia e anatomia funcional do xilema ativo de Podocarpus lambertii Klotzch ex Endl.

“…Importante também para a preservação ambiental e a economia, a Dendrocronologia tem se mostrado ferramenta eficaz no manejo para extração madeireira sustentável em locais ameaçados pela devastação, como a região amazônica. Através da obtenção de taxas de incremento, idade arbórea e modelos de crescimento, conseguem-se informações de grande utilidade para o cálculo da idade, extração adequada, regeneração da população da espécie e ciclos de corte para a manutenção florestal e econômica da população tradicional local (Wittmann et al, 2009).…”