Wolfgang J. Junk, Maria T. F. Piedade, Florian Wittmann,'s Amazonian Floodplain Forests: Ecophysiology, Biodiversity PDF

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 detailed and endangered surroundings. The forests develop in components which are every year flooded by means of huge rivers in the course of suggest sessions of as much as eight months and at depths of as much as 10 m. regardless of this critical tension, those forests encompass over 1,000 species and are by way of some distance the main species-rich floodplain forests all over the world. The timber convey a extensive variety of morphological, anatomical, physiological, and phenological diversifications that let them not just to outlive the hostile environmental stipulations, but in addition to provide quite a lot of biomass whilst the nutrient degrees in water and soils are sufficiently excessive. this is often the case within the floodplains of white-water rivers, that are used for fisheries, agriculture, and cattle-ranching yet which even have a excessive capability for the construction of trees and non-timber items, whilst competently controlled. most modern study on ecophysiology offers perception how tree species adapt to the oscillating flood-pulse targeting their photosynthesis, respiratory, sap movement, biochemistry, phenology, wooden and go away anatomy, root morphology and functioning, fruit chemistry, seed germination, seedling institution, nitrogen fixation and genetic variability. in line with tree a while, lifetime progress premiums and web fundamental creation, new suggestions are constructed to enhance the sustainability of conventional wooded area managements within the historical past of an built-in typical source administration. this can be the 1st integrative booklet at the functioning and ecologically orientated use of floodplain forests within the tropics and sub-tropics.It presents basic wisdom for scientist, scholars, foresters and different execs on their distribution, evolution and phytogeography. “This booklet is a wonderful testimony to the interdisciplinary collaboration of a gaggle of very devoted scientists to solve the functioning of the Amazonian Floodplain forests. they've got introduced jointly a hugely necessary contribution at the distribution, ecology, basic construction, ecophysiology, typology, biodiversity, and human use of those forests delivering thoughts for sustainable administration and destiny initiatives in technology and improvement of those targeted wetland ecosystems. It lays a pretty good medical starting place for wetland ecologists, foresters, environmentalists, wetland managers, and all these drawn to sustainable administration within the tropics and subtropics.” Brij Gopal, government vice chairman overseas Society for Limnology (SIL).

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

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The results of recent studies are discussed in Piedade et al. and Ferreira et al. (2010). 8 Determination of Flooding Tolerance in the Field The efficiency of a given strategy – or a combination of strategies – against flooding or water-logging of the soil defines the flooding tolerance of a species or its ecotypes. Adaptations in the growth cycle and reproductive strategies determine whether a species can establish viable populations in wetlands and which position it occupies along the flooding gradient in a river floodplain.

Field studies done in 2005 (Irion unpublished) showed that modern várzea and Late Pleistocene várzea occur on similar levels. During flooding in June, July, and August, these areas are drowned. 9 Potassium, calcium, magnesium, and sodium in Amazonian soils in grain-size fraction <2 µm (After Irion 1976b). Note the large differences between the old surfaces and the várzeas and the Andes. The differences in the contents are between one and two orders of magnitude. 6 The Paleo-Climate During the Late Holocene: An Analysis of Palaeo-Proxies from a 50-m Core Recovered from the Sediments of Lago Tapajós Climate development in the Amazonian lowland has been discussed vehemently over the last several decades (Haffer 1969; Prance 1982, Colinvaux et al.

2004), the chavascal is established in poorly drained depressions with ­waterlogged soils, which leads to an accumulation of organic material. We use this term for this vegetation type as well. To characterize nutrient status, we ­differentiate between the nutrient-rich várzea ­chavascal and nutrient-poor igapó chavascal. J. F. , gas transport systems, which facilitate gaseous diffusion from the shoot to the root –– Morphological structures to cope with periodic flooding (stilt roots, tabular roots) –– Metabolic adaptations to anoxic environments (Crawford 1969) For most plant species, periodic flooding results in stress.

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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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