By Wolfgang J. Junk, Maria T. F. Piedade, Florian Wittmann, Jochen Schöngart, Pia Parolin

ISBN-10: 9048187249

ISBN-13: 9789048187249

ISBN-10: 9048187257

ISBN-13: 9789048187256

Central Amazonian floodplain forests are an targeted and endangered surroundings. The forests develop in components which are each year flooded by way of huge rivers in the course of suggest classes of as much as eight months and at depths of as much as 10 m. regardless of this critical rigidity, those forests encompass over 1,000 species and are through some distance the main species-rich floodplain forests around the world. The bushes convey a wide diversity of morphological, anatomical, physiological, and phenological variations that let them not just to outlive the opposed environmental stipulations, but additionally to supply quite a lot of biomass while the nutrient degrees in water and soils are sufficiently excessive. this can be the case within the floodplains of white-water rivers, that are used for fisheries, agriculture, and cattle-ranching yet which even have a excessive strength for the construction of trees and non-timber items, while competently controlled. most recent study on ecophysiology supplies perception how tree species adapt to the oscillating flood-pulse targeting their photosynthesis, breathing, sap stream, biochemistry, phenology, wooden and go away anatomy, root morphology and functioning, fruit chemistry, seed germination, seedling institution, nitrogen fixation and genetic variability. in accordance with tree a long time, lifetime development charges and internet basic creation, new thoughts are built to enhance the sustainability of conventional wooded area managements within the heritage of an built-in common source administration. this can be the 1st integrative ebook at the functioning and ecologically orientated use of floodplain forests within the tropics and sub-tropics.It offers primary wisdom for scientist, scholars, foresters and different execs on their distribution, evolution and phytogeography. “This publication is a superb testimony to the interdisciplinary collaboration of a gaggle of very committed scientists to resolve the functioning of the Amazonian Floodplain forests. they've got introduced jointly a hugely worthy contribution at the distribution, ecology, fundamental creation, ecophysiology, typology, biodiversity, and human use of those forests providing innovations for sustainable administration and destiny tasks in technology and improvement of those designated wetland ecosystems. It lays a superior medical beginning for wetland ecologists, foresters, environmentalists, wetland managers, and all these attracted to sustainable administration within the tropics and subtropics.” Brij Gopal, government vice chairman foreign Society for Limnology (SIL).

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Extra resources for Amazonian Floodplain Forests: Ecophysiology, Biodiversity and Sustainable Management

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4 Distribution of major terrestrial plant communities on the flood-level gradient of the Amazon River floodplain near Manaus. The data are based on the 80-year average maximum and minimum numbers of consecutive dry and flood days (hydrological data from Manaus harbor). Totals of the number of years without dry and flood periods are indicated in parentheses. Values are calculated according to the hydrological year (Junk 1989) (Cocoloba ovata, Symmeria paniculata, Eugenia inundata) grow on habitats that are inundated during nearly 9 months per year on average, but can tolerate extreme periods of 3 years of consecutive flooding of the rhizosphere.

Large trees survive floods better than small trees, because flood length is often correlated with flood depth, and many trees cannot tolerate total flooding during the growth period. Trees distributed in the lower ranges of the flooding gradient rejuvenate only in years of very low flood levels (Oliveira Wittmann et al. 2010). However, the growth form of the species can also influence its position on the flooding gradient. In the Rhine River floodplain, the shrubby Salix purpurea grows on a higher position than the tree Salix alba, not because of lower flood tolerance but to avoid total flooding (Dister 1983).

The largest areas are located in the vicinity of Lago Amanã, some 70 km north of Tefé, between Lago Coari and the Purús River, south of the lower Rio Solimões, as well as at the rim of the várzea between Juruti, Óbidos, and Santarém. Palaeo-várzea can be recognized by the sequences of ridges and swales that resulted from rhythmic depositional processes occurring predominantly at the slip-off slope of the river course (Irion 1976a). The structure of the paleo-várzea is the same as the recent várzea, but its features have been significantly weakened.

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Amazonian Floodplain Forests: Ecophysiology, Biodiversity and Sustainable Management by Wolfgang J. Junk, Maria T. F. Piedade, Florian Wittmann, Jochen Schöngart, Pia Parolin

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