Relevant bibliographies by topics / Prescribed burning Victoria Gembrook

Academic literature on the topic 'Prescribed burning Victoria Gembrook'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Prescribed burning Victoria Gembrook"

1

Hamilton, SD, AC Lawrie, P. Hopmans, and BV Leonard. "Effects of Fuel-Reduction Burning on a Eucalyptus obliqua Forest Ecosystem in Victoria." Australian Journal of Botany 39, no. 3 (1991): 203. http://dx.doi.org/10.1071/bt9910203.

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An autumn fuel-reduction burn of low intensity (200-250 kW m-1) was performed in a Eucalyptus obliqua forest near Gembrook, Victoria. The aim of the study was to evaluate the effect of a single burn on floristics, biomass, N content and N2 fixation. The fire burnt 50% of the area in a mosaic pattern, significantly reducing understorey vegetation cover (by 90%) and plant density (by 70%) in burnt areas immediately after the fire. Understorey cover was restored to 40% of the original value 1 year later, but 33% of the understorey species were still absent from burnt areas. In the whole site mosaic, biomass declined by 30 t ha-1 (3 kg m-2) (10%) and N content by 100 kg ha-1 (10 g m-2) (18% excluding soil N, 2% including soil N). These losses were due to significant losses of biomass and N from the understorey only (88%, 85%), standing dead trees (57%, 62%), fallen wood (73%, 60%) and litter (69%, 70%). One year later, there was no significant increase in either biomass or N content. Burnt areas had five times the total nitrogenase activity of unburnt areas, owing to significantly greater specific nitrogenase (C2H2 reduction) activity, three times the nodule weight and 20 times the plant density of unburnt areas for the dominant legume (Pultenaea scabra). Using a calibration ratio for C2H2:N2 of 2.68 :1 derived from glasshouse growth studies, N2 fixation for P. scabra was estimated as 15 g ha-1 year-1 in burnt areas and 3 g ha-1 year-1 in unburnt areas, with a mean of 9 g ha-1 year-' for the whole site mosaic. Adding superphosphate to burnt areas increased estimated N2 fixation significantly by 14%, mainly by increasing nodulation. Losses of N due to the burn (100 kg ha-1) were considerably greater than gains from increases in N2 fixation (6 g ha-1 year-1) one year after the burn. Even allowing for N2 fixation by other, infrequent legumes and greater N2 fixation in subsequent years, these data suggest that the N lost in the burn is more likely to be replaced by inputs from soil reserves and rainwater than from N2 fixation by legumes.
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2

Gill, A. Malcolm. "Fire regimes, biodiversity conservation and prescribed-burning programs." Proceedings of the Royal Society of Victoria 124, no. 1 (2012): 1. http://dx.doi.org/10.1071/rs12001.

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In the trend towards the domestication, or taming, of fire regimes in Victoria, Australia, the level of prescribed burning has been stepped up due to a recommendation from the 2009 Victorian Bushfires Royal Commission. While prescribed burning programs may be instituted for a number of reasons, especially the protection of life and property, they have consequences for the conservation of biodiversity. Not all vegetation types can be prescribed burned because the weather does not always allow it to occur under safe working conditions; where prescribed burning programs are carried out, unplanned fires may still occur. Thus, the general issue is the effect on biodiversity of both prescribed and unplanned fires, neither alone. Here, the importance to biodiversity conservation of all the components of the fire regime– interval, season, intensity and type (peat fire or otherwise) – and their domain of variability is emphasized. If conservation of biodiversity is to be guaranteed in a changing fire world, then much more knowledge about the systems being managed, gained in large part through effective monitoring, is needed. Issues such as targets and some assumptions of management are addressed here.
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Bell, Tina, and Immaculada Oliveras. "Perceptions of Prescribed Burning in a Local Forest Community in Victoria, Australia." Environmental Management 38, no. 5 (September 25, 2006): 867–78. http://dx.doi.org/10.1007/s00267-005-0290-3.

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Tolhurst, Kevin G. "Fire severity and ecosystem resilience – lessons from the Wombat Fire Effects Study (1984-2003)." Proceedings of the Royal Society of Victoria 124, no. 1 (2012): 30. http://dx.doi.org/10.1071/rs12030.

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The Wombat Fire Effects Study was established to address a number of questions in relation to the effects of repeated low-intensity fires in mixed species eucalypt forest in the foothills of Victoria. This study has now been going for 25 years and has included the study of understorey plants, fuels, bats, terrestrial mammals, reptiles, invertebrates, fungi, birds, soils, tree growth, fire behaviour and weather. This forest system has shown a high resilience to fire that is attributed here to the patchiness and variability in the fire characteristics within a fire and the relatively small proportion of the landscape being affected. A means of comparing the level of “injury” caused by low-intensity prescribed fire with high intensity wildfire is proposed so that the debate about leverage benefits (the reduction in wildfire area compared to the area of planned burning) can be more rational. There are some significant implications for assessing the relative environmental impacts of wildfire compared with the planned burning program being implemented in Victoria since the Victorian Bushfires Royal Commission recommendations (Teague et al. 2010).
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Jasinge, N. U., T. Huynh, and A. C. Lawrie. "Changes in orchid populations and endophytic fungi with rainfall and prescribed burning in Pterostylis revoluta in Victoria, Australia." Annals of Botany 121, no. 2 (January 2, 2018): 321–34. http://dx.doi.org/10.1093/aob/mcx164.

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6

Tolhurst, Kevin G., and Greg McCarthy. "Effect of prescribed burning on wildfire severity: a landscape-scale case study from the 2003 fires in Victoria." Australian Forestry 79, no. 1 (January 2, 2016): 1–14. http://dx.doi.org/10.1080/00049158.2015.1127197.

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7

Curtis, N. Peter. "A Post-fire Ecological Study of Xanthorrhoea australis Following Prescribed Burning in the Warby Range State Park, North-eastern Victoria, Australia." Australian Journal of Botany 46, no. 2 (1998): 253. http://dx.doi.org/10.1071/bt97018.

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Xanthorrhoea australis R.Br. is considered a fire-tolerant species, a statement evidently based on established adaptive traits rather than fire recorded studies. This two-year post-fire study of X. australis in areas that have been subjected to prescribed burning in 1976 and 1991 compares results with a site unburnt for about 100 years. In the sites burnt in 1991, arborescent plants had a mortality of between 10% and 40% (average 21%), with highest mortality in the youngest and oldest plants, and in the site with the lowest plant density. In the site burnt in 1976, plants were still dying. Mortality of plants in the unburnt site was 4%. Flowering in the first post-fire spring varied from 0–100% throughout the size classes, with no flowering observed in plants smaller than 0.5 m. In the unburnt sites and the 1976 burnt sites, where understorey protected seedlings, recruitment was significantly higher (P < 0.001) than in the areas burnt in 1991 that had little ground cover. Plants with severe burn damage to stems at ground level often developed leans (P < 0.001) that were more often opposite to the burnt side (P < 0.001). Leans increased from 2.5˚ to 35˚, and some plants continued to grow, lying horizontally. In all fire sites the horizontal plants had a mortality of 44–92% compared with 29% for those in the unburnt site. In some sites, particularly in areas of high soil moisture, 3–10% of plants developed epicormic shoots after their stems fractured, or their shoot apices died. The study showed that fire has a long-term deleterious effect on large plants of this species. These data should be taken into account by authorities engaged in prescribed burning in forests with significant stands of this species.
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Chick, Matthew P., Janet S. Cohn, Craig R. Nitschke, and Alan York. "Lack of soil seedbank change with time since fire: relevance to seed supply after prescribed burns." International Journal of Wildland Fire 25, no. 8 (2016): 849. http://dx.doi.org/10.1071/wf15013.

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Soil seedbanks play a key role in the post-fire recruitment of many plant species. Seedbank diversity can be influenced by spatial variability (e.g. geographic location), environmental variability (e.g. soils) and temporal disturbance heterogeneity (e.g. time since fire, TSF) across the landscape. Unlike for aboveground vegetation, relationships between these factors and soil seedbank diversity remain largely unknown. Partitioning the influence of spatial and environmental variability from that of TSF, and explaining how these factors interact with seedbank diversity, will assist conservation managers in their application of prescribed burning. We germinated soil seedbank samples from sites ranging from 1 to 75 years since fire in a heathy-woodland ecosystem across the Otway Ranges in Victoria, Australia. We also measured spatial and environmental variability across sites to partition the influence of these variables and TSF on propagules available for recruitment. We found weak positive relationships between seedbank richness and TSF; however, these relationships varied across the landscape. We found composition did not change considerably over time, suggesting, in this ecosystem, pre-fire age is not strongly influencing propagules available for recruitment post-fire. Our results suggest that spatial and environmental variability influence seedbank composition more than TSF.
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Stevens, Mike, John White, and Raylene Cooke. "Short-term impact of a mega-fire on small mammal communities during prolonged drought." Proceedings of the Royal Society of Victoria 124, no. 1 (2012): 61. http://dx.doi.org/10.1071/rs12061.

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Increased size, severity and frequency of wildfire is predicted as a consequence of prolonged droughts associated with climate change. In south-eastern Australia severe landscape-scale wildfires (mega-fires) have elicited a strong anthropocentric response due to the significant life and property impacts. However, the impact of mega-fires on fauna, habitat and subsequent management actions are poorly understood. Small mammals were surveyed to examine mega-fire impact using the post-2006 wildfire landscape of the Grampians National Park, Victoria, Australia. Long-term research sites were established with 9620 trap nights completed in autumn 2008 across thirty-six sampling units. Vegetation structure, floristics, fire severity, patch size and overall fuel hazard were measured to investigate correlations with changes in small mammal abundance.Two years post-wildfire, rapid resurgence of house mouse (Mus musculus) was detected, conversely the abundance of native small mammal species was severely impacted. No sampling category within the burnt perimeter provided superior refuge presenting potential conservation implications. A habitat vacancy model is introduced where small mammal recolonisation post-wildfire depends on a lack of isolation and connectivity of populations. Floristic and structural contributions of vegetation to higher overall fuel hazard areas are essential in maintaining diverse fauna assemblages. As such, prescribed burning or fire suppression tactics such as ‘patching out’ or ‘burning out’ require consideration when contributing to further reduction of complex habitat patches following fires.
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Roberts, Jason, Singarayer Florentine, Eddie van Etten, and Christopher Turville. "Seed longevity and germination in response to changing drought and heat conditions on four populations of the invasive weed African Lovegrass (Eragrostis curvula)." Weed Science, April 20, 2021, 1–25. http://dx.doi.org/10.1017/wsc.2021.28.

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Abstract African lovegrass [Eragrostis curvula (Schrad.) Nees] is an invasive weed that is threatening biodiversity around the world and will continue to do so unless its efficient management is achieved. Consequently, laboratory and field-based experiments were performed to analyse several measures of germination to determine the effect of drought stress, radiant heat stress and burial depth and duration (longevity) on E. curvula seeds. This study investigated seeds from four spatially varied populations across Australia: Maffra and Shepparton, Victoria; Tenterfield, New South Wales; and Midvale, Western Australia. Results showed that increasing drought stress reduced and slowed germination for all populations. Maffra (24% vs. 83%) and Shepparton (41% vs. 74%) were reduced at the osmotic potential of ≤-0.4 MPa, whilst Tenterfield (35% vs. 98.6%) and Midvale (32% vs. 91%) were reduced at ≤-0.6 MPa, compared to the mean of all other osmotic potentials. Radiant heat at 100 C significantly reduced and slowed germination compared to 40 C for Tenterfield (62% vs. 100%), Shepparton (15% vs. 89%) and Midvale (41% vs. 100%); whilst Maffra (75% vs. 86%) had consistent germination. For the effect of burial depth and duration (longevity), there was no significant difference across the fourteen-month period, however, the 0 cm burial depth had a significantly lower final germination percentage compared to depths of 3, 5 and 10 cm (24% vs. 55%). Although each trial was conducted independently, their results can be used to help identify efficient control measures to reduce infesting populations. Such measures recommended include using soil moisture monitoring to detect which conditions will promote germination, as germination is encouraged when the osmotic potential is >-0.6 MPa; exposing seeds to radiant heat (>100 C) using methods such as prescribed burning; and limiting soil disturbance over time to reduce seed establishment.
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Books on the topic "Prescribed burning Victoria Gembrook"

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Gell, Peter A. Human settlement history and environmental impact: The Delegate River catchment, east Gippsland, Victoria. Melbourne: Dept. of Geography and Environmental Science, Monash University, 1989.

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Conference papers on the topic "Prescribed burning Victoria Gembrook"

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"Smoke impacts from prescribed burning in Victoria; developing a risk climatology." In 20th International Congress on Modelling and Simulation (MODSIM2013). Modelling and Simulation Society of Australia and New Zealand, 2013. http://dx.doi.org/10.36334/modsim.2013.a3.meyer2.

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