Axa Assurance Maroc - Insurer Innovation Award 2024
Thackway_MAY_presentation
1. Managing native vegetation - insights from longitudinal site management histories Richard Thackway ACEAS Sabbatical Fellow CSIRO ES Seminar Series 19 May 2011 Canberra
8. Australia’s future landscapes – The big issues and questions Biodiversity conservation, biodiverse carbon, biosequestration, food security - agriculture moving to northern Australia etc What has happened in this landscape over time e.g. <200yrs? How might historic/ contemporary impacts of land use (LU) and land management practices (LMP) affect future land use options/ decisions?
9. A model of change in ecosystems Reference Settlement Change in vegetation variable 1000 0 Time Source: Adamson and Fox (1982).
10. Anthropogenic change Net impact Relaxation Occupation Modification score 1850 1900 1950 2000 1800 Time Transformation pathway Reference Based on Hamilton, Brown & Nolan (2008). FWPA PRO7.1050. pg 18Land use impacts on biodiversity and Life Cycle Assessment
30. Classifying mapping units relative to reference unmodified /least modified statee.g. VAST (Vegetation Assets States and Transitions) and Vegmachine9
31. The problem ∆ VC score ∆ VC score × Vegetation transformation ∆ time ∆ space/extent VC = Benchmarked vegetation condition
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33. No consistent approach for assessing the response of vegetation communities to impacts/pressures over time and space
66. Sequencing historic & contemporary LU & LMP and responses of native vegetation Final synthesised sequence DNA matching Multiple sources Source ID: 1a Source ID: 1b 2050 2000 1950 Year 1900 1850 1800 1750
67. Workflow for deriving impacts of LU and LMP vegetation Step 1: Compile primary data on LU and LMP histories for case study sites Step 1C: Standardise site-based observation using national guidelines for LU & LMP. Fill gaps from regional records Step 1B: Compile and check data on impacts of LU & LMP on native veg. Step 1A: Compile and translate and check. Include major natural events e.g. droughts, floods, fires, cyclones Step 2: Score impacts relative to a reference condition for each site and year Step 2C: Score impacts of LU & LMP on attributes of vegetation composition Step 2B: Score impacts of LU & LMP on attributes of vegetation structure Step 2A: Score impacts of LU & LMP on attributes of regenerative capacity Step 3: Calculate total scores of impacts of LU/LMP on themes for each site for each year Step 4 – Graph total scores to illustrate transformation Step 5– Model spatial and temporal extents of condition at a landscape level, using GIS, remote sensing , ecological models Step 6 – Validate the results of the spatial and temporal models using independent datasets and peer review
68. Step 1A & 1B: Compile and check disturbance histories
100. Provides a basis for a conversation with a land manager ? ? ? Benchmark scores
101. 1 Provides a basis for a conversation with a land manager Vegetation Transformation score 3 10 22 Diagnostic attributes Attribute groups
102. Provides a basis for a conversation with a land manager 1 Vegetation Transformation score 3 10 22 Diagnostic attributes Attribute groups
103. Provides a basis for a conversation with a land manager 1 Vegetation Transformation score 3 10 22 Diagnostic attributes Regenerative Capacity Attribute groups
104. Provides a basis for a conversation with a land manager 1 Vegetation Transformation score 3 10 22 Diagnostic attributes Regenerative Capacity Attribute groups Reprodpotent Fire Soil (2) (2) Biology Structure Chemistry Hydrology Indicators (2) (2) (2) (2)
105. Provides a basis for a conversation with a land manager 1 Vegetation Transformation score 3 10 22 Diagnostic attributes Vegetation Structure Regenerative Capacity Attribute groups Reprodpotent Fire Soil Overstorey Understorey (3) (3) (2) (2) Biology Structure Chemistry Hydrology Indicators (2) (2) (2) (2)
106. Provides a basis for a conversation with a land manager 1 Vegetation Transformation score 3 10 22 Diagnostic attributes Vegetation Structure Species Composition Regenerative Capacity Attribute groups Reprodpotent Fire Soil Overstorey Understorey Overstorey Understorey (3) (2) (2) (3) (2) (2) Biology Structure Chemistry Hydrology Indicators (2) (2) (2) (2)