2007
DOI: 10.2989/102201107780178177
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Effects of season and frequency of burning on soils and landscape functioning in a moist montane grassland

Abstract: The effects of burning on soil properties and landscape function were investigated in a long-term experiment comparing different burning strategies in a moist montane grassland. Total C, total N, total S, bulk density, plant-available nutrients, and soil acidity were determined in the top 200mm of soil, together with vegetation basal cover at the soil surface. The no-burn treatment had the lowest basal cover (14.8%). Basal cover for the burnt treatments ranged from 19.0% (five-year spring burn) to 25.4% (alter… Show more

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Cited by 26 publications
(25 citation statements)
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“…These slower recoveries in terms of basal cover can be explained by the low rainfall these arid and semi-arid areas received, as well as the intense damage to the grass tufts itself by fire. Just as the case with basal cover, plant density decreased due to fire (Emmerich and Cox, 1992;West and York, 2002) and possibly did not recover two seasons following the fire (Table 1; Manson et al, 2007). By contrast, in terms of individual grass species, Snyman (2014) reported from a semi-arid climate a density of the One of the reasons for this increase in density could be the fact that the extremely big unpalatable tufts of this grass species was saved from a self-shading=smothering effect, which caused active growth and establishment of many new plants.…”
Section: Basal Cover Plant Density and Botanical Compositionmentioning
confidence: 92%
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“…These slower recoveries in terms of basal cover can be explained by the low rainfall these arid and semi-arid areas received, as well as the intense damage to the grass tufts itself by fire. Just as the case with basal cover, plant density decreased due to fire (Emmerich and Cox, 1992;West and York, 2002) and possibly did not recover two seasons following the fire (Table 1; Manson et al, 2007). By contrast, in terms of individual grass species, Snyman (2014) reported from a semi-arid climate a density of the One of the reasons for this increase in density could be the fact that the extremely big unpalatable tufts of this grass species was saved from a self-shading=smothering effect, which caused active growth and establishment of many new plants.…”
Section: Basal Cover Plant Density and Botanical Compositionmentioning
confidence: 92%
“…Regardless of the rangeland type, most researchers reported a decrease in basal and canopy cover with burning of arid and semi-arid areas (Figure 1; Snyman, 2004c;Manson et al, 2007;Killgore et al, 2009). In these drier areas, with big tuft sizes (less dense plant cover) the fire is more intense on an individual tuft base, which leads to the die-off of partly or whole tufts, causing the decrease in basal cover.…”
Section: Basal Cover Plant Density and Botanical Compositionmentioning
confidence: 95%
“…The results were presented in a series of papers during a special session of the 40th Annual Congress of the Grassland Society of South Africa (18-22 July 2005). Two of those papers, on soil properties (Manson et al 2007) and invertebrate composition (Uys and Hamer 2007) are published in this volume of African Journal of Range & Forage Science. Each contribution was subjected to the normal peer-review process of the journal.…”
mentioning
confidence: 99%
“…An "attainable" condition for the natural grasslands (i.e. those areas not yet degraded) in the Upper-Umzimvubu catchment would be a 100% veld condition (essentially no grazing) in the upper Quinaries, with a 70% condition (controlled rotational grazing) in the middle and lower Quinaries with spring burns every second year (Tainton, 1999;Tainton et al, 1999;Fynn et al, 2003;Uys, 2006;Reynolds et al, 2007;Manson et al, 2007). However, the already degraded natural grasslands in all bottom Quinaries are in such a poor state that it is considered neither financially feasible nor practical in the short term to restore the veld.…”
Section: Land Use Datamentioning
confidence: 99%
“…well managed) of the respective baseline grasslands in all Quinaries, with a spring burn only every second year, as recommended by ecologists and practiced as a general rule of thumb allowing for spatial variations by Ezemvelo KZN Wildlife. This practice is augmented by rotational grazing and reduced stocking rates to achieve the required outcome (Tainton, 1999;Tainton et al, 1999;Fynn et al, 2003;Uys, 2006;Reynolds et al, 2007, andManson et al, 2007).…”
Section: Land Use Datamentioning
confidence: 99%