24 research outputs found
Species abundance
The projective foliage cover of each plant species/reproductive strategy/lifeform observed within each replicate sit
Parameters describing carbon stocks and stock changes in the case study forest systems.
<p>AGB aboveground living biomass, TB total living biomass,</p><p>* model output, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0139640#pone.0139640.s002" target="_blank">S2 Appendix</a></p><p><sup>(a)</sup> Parameter value used in the base case simulation,</p><p><sup>(b)</sup> range in values used in the sensitivity analysis</p><p>Parameters describing carbon stocks and stock changes in the case study forest systems.</p
Total carbon stock (tC ha<sup>-1</sup>) in the harvested or conserved forest system in Mountain Ash forests, simulated over 20, 50 and 100 years and calculated using two equations for biomass accumulation rate (S2 Appendix S2.2.2), and with a wildfire (Fig E in S3 Appendix).
<p>Total carbon stock (tC ha<sup>-1</sup>) in the harvested or conserved forest system in Mountain Ash forests, simulated over 20, 50 and 100 years and calculated using two equations for biomass accumulation rate (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0139640#pone.0139640.s002" target="_blank">S2 Appendix</a> S2.2.2), and with a wildfire (Fig E in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0139640#pone.0139640.s003" target="_blank">S3 Appendix</a>).</p
Under What Circumstances Do Wood Products from Native Forests Benefit Climate Change Mitigation?
<div><p>Climate change mitigation benefits from the land sector are not being fully realised because of uncertainty and controversy about the role of native forest management. The dominant policy view, as stated in the IPCC’s Fifth Assessment Report, is that sustainable forest harvesting yielding wood products, generates the largest mitigation benefit. We demonstrate that changing native forest management from commercial harvesting to conservation can make an important contribution to mitigation. Conservation of native forests results in an immediate and substantial reduction in net emissions relative to a reference case of commercial harvesting. We calibrated models to simulate scenarios of native forest management for two Australian case studies: mixed-eucalypt in New South Wales and Mountain Ash in Victoria. Carbon stocks in the harvested forest included forest biomass, wood and paper products, waste in landfill, and bioenergy that substituted for fossil fuel energy. The conservation forest included forest biomass, and subtracted stocks for the foregone products that were substituted by non-wood products or plantation products. Total carbon stocks were lower in harvested forest than in conservation forest in both case studies over the 100-year simulation period. We tested a range of potential parameter values reported in the literature: none could increase the combined carbon stock in products, slash, landfill and substitution sufficiently to exceed the increase in carbon stock due to changing management of native forest to conservation. The key parameters determining carbon stock change under different forest management scenarios are those affecting accumulation of carbon in forest biomass, rather than parameters affecting transfers among wood products. This analysis helps prioritise mitigation activities to focus on maximising forest biomass. International forest-related policies, including negotiations under the UNFCCC, have failed to recognize fully the mitigation value of native forest conservation. Our analyses provide evidence for decision-making about the circumstances under which forest management provides mitigation benefits.</p></div
Genotypes
Genotype data in Genalex format (http://biology-assets.anu.edu.au/GenAlEx/Welcome.html)
Lindenmayer salvage logging birds
Data from an 8-year study of bird responses across a spectrum of disturbance types in Australian Mountain Ash (Eucalyptus regnans) forests following wildfires in 2009. We extracted data for 88 plots from three studies within the Victorian Tall Eucalypt Forest Plot Network. The plots had varying degrees of disturbance in terms of fire and logging. We established three survey points in each plot and recorded bird species present at each survey point over the period 2009 to 2016 on one or more occasions
Dry runs: longest number of consecutive dry days (with <1mm rainfall)
This metadata is associated with an environmental raster layer describing the longest number of consecutive days with <1mm rainfall across Australia (further description below). The layer was created by Alejandra Morán-Ordóñez in 2015 as part of a project on modelling species responses to extreme weather. A paper associated with this project is currently in press & this metadata will be updated to reflect the availability of the original data when the article is published.<div><br><div>This project used a clipped version of the original data, focused on the Central Highlands Regional Forest Agreement Area of Victoria, Australia. The original raster was created as follows: "Interpolated daily and monthly climate data at 0.05° spatial resolution (~ 5-km) were obtained from the Australian Water Availability Project for the period 1977 – 2012 (Raupach et al. 2009, 2012). Temperature data were corrected with an adiabatic lapse rate of 0.00645°C m-1 (Moore 1956, Sturman and Tapper 1996) from the original 0.05° values to a resolution of 0.01° (~1 km) based on a digital elevation model (DEM) resampled from its original 0.0025° to 0.01° resolution (GEODATA 9-second DEM v.3, Geoscience Australia). [...]  From the daily weather data we calculated [...] indices describing [...] the maximum length of dry spells (maximum run of sequential dry days; rainfall < 1mm)[...]" </div><div><div>From Morán-Ordóñez, A., Briscoe, N. J., & Wintle, B. A. (2017). Modelling species responses to extreme weather provides new insights into constraints on range and likely climate change impacts for Australian mammals. <i>Ecography</i>.</div></div></div
Carbon stocks and transfers in a forest and harvested wood products system.
<p>Boxes represent stocks of carbon, and arrows represent transfers between stocks with the process defined in italics.</p
T5: 5th percentile of minimum temperatures
This metadata is associated with an environmental raster layer describing the 5th percentile of minimum temperatures across Australia (further description below). The layer was created by Alejandra Morán-Ordóñez in 2015 as part of a project on modelling species responses to extreme weather. A paper associated with this project is currently in press & this metadata will be updated to reflect the availability of the original data when the article is published.<div><br><div>This project used a clipped version of the original data, focused on the Central Highlands Regional Forest Agreement Area of Victoria, Australia. The original raster was created as follows: "Interpolated daily and monthly climate data at 0.05° spatial resolution (~ 5-km) were obtained from the Australian Water Availability Project for the period 1977 – 2012 (Raupach et al. 2009, 2012). Temperature data were corrected with an adiabatic lapse rate of 0.00645°C m-1 (Moore 1956, Sturman and Tapper 1996) from the original 0.05° values to a resolution of 0.01° (~1 km) based on a digital elevation model (DEM) resampled from its original 0.0025° to 0.01° resolution (GEODATA 9-second DEM v.3, Geoscience Australia). [...]  From the daily weather data we calculated [...] indices describing the magnitude of temperature extremes (<b>5th</b> and 95th <b>percentile temperatures for minimum</b> and maximum <b>daily temperatures</b>, respectively) [...]" <div><div>From Morán-Ordóñez, A., Briscoe, N. J., & Wintle, B. A. (2017). Modelling species responses to extreme weather provides new insights into constraints on range and likely climate change impacts for Australian mammals. <i>Ecography</i>.</div></div></div></div
Regional average carbon stocks simulated over 100 years in South Coast mixed native eucalypt forest.
<p>Simulations were run for the reference case of current harvested forest (A), and four scenarios of forest management; scenario (1) maximum forest harvest production (B), scenario (2a) conservation forest plus non-wood substitution (C), scenario (2b) conservation forest plus plantation substitution (D), and scenario (2c) conservation forest plus existing plantations (E). All biomass pools in the harvested forest system were included, both on- and off-site. Carbon stock in harvested forest included above-and below-ground living and dead biomass. Carbon stocks shown for pine and eucalypt plantations included forest biomass living and dead, wood and paper products and landfill.</p