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| Bird, Michael I.; Hutley, Lindsay B.; Lawes, Michael J.; Lloyd, Jon; Luly, Jon G.; Ridd, Peter V.; Roberts, Richard G.; Ulm, Sean; Wurster, Christopher M.. |
| Debate concerning the environmental impact of human arrival in Australia has continued for more than a century. Here we review the evidence for human impact and the mechanisms by which humans may have affected the environment of tropical Australia. We limit our review to tropical Australia because, over three decades ago, it was proposed that the imposition of an anthropogenic fire regime upon human occupation of the Australian continent may have resulted in profound changes in regional vegetation and climate across this region. We conclude that ecological processes and vegetation-fire-climate-human feedbacks do exist that could have driven a significant shift in boundary conditions and ecosystem state at the sub-continental scale through the sustained... |
| Tipo: Text |
Palavras-chave: Human impact; Megafaunal extinction; Tropical palaeoclimate; Fire regime; Ecosystem change. |
| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00291/40179/39079.pdf |
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| Bergeron, Yves; Universite du Quebec a Montreal; bergeron.yves@uqam.ca; Richard, Pierre J.H.; ; richard@ere.umontreal.ca; Carcaillet, Christopher; ; carcailc@MAGELLAN.UMontreal.CA; Gauthier, Sylvie; ; sgauthier@cfl.forestry.ca; Flannigan, Mike; Canadian Forest Service; mflannigan@nofc.forestry.ca; Prairie, Yves T; ; prairie.yves@uqam.ca. |
| Because some consequences of fire resemble the effects of industrial forest harvesting, forest management is often considered as a disturbance having effects similar to those of natural disturbances. Although the analogy between forest management and fire disturbance in boreal ecosystems has some merit, it is important to recognize that it has limitations. First, normal forest rotations truncate the natural forest stand age distribution and eliminate over-mature forests from the landscape. Second, in the boreal mixedwoods, natural forest dynamics following fire may involve a gradual replacement of stands of intolerant broadleaf species by mixedwood and then softwood stands, whereas current silvicultural practices promote successive rotations of similarly... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Fire regime; Boreal forest; Mixedwood; Holocene vegetation; Sustainable forestry; Management for biodiversity.. |
| Ano: 1998 |
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