The evolution of fire and invasive alien plant management practices in fynbos

The history and development of fire and invasive alien plant management policies in fynbos during the 20th century are reviewed. Fire was initially condemned outright as a destructive force, but as its vital role became better understood, management policies switched from protection to active burnin...

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Main Author: B.W. van Wilgen
Format: Article
Language:English
Published: Academy of Science of South Africa 2010-01-01
Series:South African Journal of Science
Online Access:http://192.168.0.118/index.php/sajs/article/view/10049
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author B.W. van Wilgen
author_facet B.W. van Wilgen
author_sort B.W. van Wilgen
collection DOAJ
description The history and development of fire and invasive alien plant management policies in fynbos during the 20th century are reviewed. Fire was initially condemned outright as a destructive force, but as its vital role became better understood, management policies switched from protection to active burning in 1968. During the 1970s, large, coordinated research programmes were established, resulting in a solid basis of knowledge on which to develop fire management policies. Despite policies of prescribed burning, wild fires remain the dominant feature of the region, fortunately driving a variable fire regime that remains broadly aligned with conservation objectives. The problem of conserving fire-adapted fynbos is complicated by invading alien trees that are also fire-adapted. Research results were used to demonstrate the impacts of these invasions on water yields, leading to the creation of one of the largest alien plant control programmes globally. Despite improvements in control methods, alien trees, notably pines, continue to spread almost unchecked. Biological control offered some hope for controlling pines, but was ruled out as too high a risk for these commercially-important trees. Failure to address this problem adequately will almost certainly result in the severe degradation of remaining fynbos ecosystems.
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spelling doaj.art-bba1f8358b44402fab6bc9e9c28cd6af2022-12-21T22:26:27ZengAcademy of Science of South AfricaSouth African Journal of Science1996-74892010-01-011059/10The evolution of fire and invasive alien plant management practices in fynbosB.W. van WilgenThe history and development of fire and invasive alien plant management policies in fynbos during the 20th century are reviewed. Fire was initially condemned outright as a destructive force, but as its vital role became better understood, management policies switched from protection to active burning in 1968. During the 1970s, large, coordinated research programmes were established, resulting in a solid basis of knowledge on which to develop fire management policies. Despite policies of prescribed burning, wild fires remain the dominant feature of the region, fortunately driving a variable fire regime that remains broadly aligned with conservation objectives. The problem of conserving fire-adapted fynbos is complicated by invading alien trees that are also fire-adapted. Research results were used to demonstrate the impacts of these invasions on water yields, leading to the creation of one of the largest alien plant control programmes globally. Despite improvements in control methods, alien trees, notably pines, continue to spread almost unchecked. Biological control offered some hope for controlling pines, but was ruled out as too high a risk for these commercially-important trees. Failure to address this problem adequately will almost certainly result in the severe degradation of remaining fynbos ecosystems.http://192.168.0.118/index.php/sajs/article/view/10049
spellingShingle B.W. van Wilgen
The evolution of fire and invasive alien plant management practices in fynbos
South African Journal of Science
title The evolution of fire and invasive alien plant management practices in fynbos
title_full The evolution of fire and invasive alien plant management practices in fynbos
title_fullStr The evolution of fire and invasive alien plant management practices in fynbos
title_full_unstemmed The evolution of fire and invasive alien plant management practices in fynbos
title_short The evolution of fire and invasive alien plant management practices in fynbos
title_sort evolution of fire and invasive alien plant management practices in fynbos
url http://192.168.0.118/index.php/sajs/article/view/10049
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