A landscape generator prototype and its application as tool for integrated regional environmental impact assessment of bioenergy activities 1

Transcription

1 A landscape generator prototype and its application as tool for integrated regional environmental impact assessment of bioenergy activities 1 Department of Bioenergy (BEN) UFZ, 2 Department Ecologica 3 DBFZ Sandro Pütz Aim: Sustainable 1,2, Jeroen Everaars use of crop 2, Daniela Thrän biomass for 1,3, Karin Frank Bioenergy. 2 1 UFZ Department of Bioenergy 2 UFZ Department of Ecological Modelling 3 DBFZ Deutsches Biomasseforschungszentrum, Leipzig in cooperation with

2 Introduction Aim: Sustainable use of crop biomass for Bioenergy at landscape and regional level. Need: Basic understanding how landscape structure influences the environmental impact of bioenergy use of crop biomass. in cooperation with 2

3 Introduction: Example: Spatial impacts at landscape scale Forest Continuous fragment forest (4 Ha) Edge Mortality 4,0 % 2,8 % 2,2 % 1,9 % 1.7 % Fraction of maximum biomass [%] Fraction of maximum biomass (250 Mg / ha) in fragments of different sizes at time t = 50 years Additional Carbon loss Forest fragments simulated Sigmoidal model R² = Fragment size [ha] Conversion of pristine forests has additional negative spatial impacts! 200m 1,6 % Pütz et al. in prep.

4 Introduction Problem: many spatial simulation models at different and smaller scales!? 4 How to deal with small scall models for regional assessment? e.g. 3 km

5 Introduction Research Agenda: Development of a landscape generator at the landscape scale generating model landscapes. Model landscapes are designed such, that a consistent, multi-criterial analysis of several environmental impacts is possible. in cooperation with 5

6 Introduction Research Agenda: Aggregation of spatial ecological and environmental effects into the landscape scale - Landscape metrics. Further development of Life Cycle Assessments (splcas): Inclusion of space and Biodiversity. in cooperation with 6

7 Approach Scenario based, systematic parameter variation Gradients Natural landscape unit forest cover, fragmentation Integration of land use patterns (cropping systems) Integration of gradients, rivers and streams in cooperation with 7

8 Approach: Large scale spatial patterns: Variation of: % of forest cover and agricultural area Degree of forest fragmentation 8

9 Approach Systematic evaluation of Model landscapes Distribution of cropping systems within large scale spatial pattern. Crop diversity Cropping systems (management) Size of agricultural fields Spatial distribution of fields 9

10 Analysis: Systematic evaluation of Model landscapes Model landscapes are used by models with specific questions: overall suitability 3.crop diversity 2.feeding bird territories bird species specific 1.nesting INPUT from Landscape Generator! 3 km cropping scenarios agricultural fields Source: Jeroen Everaars Page 10

11 Landscape metrics: Identification of Landscape metrics as Indicators Systematic variation Systematic variation degree of fragmentation degree of fragmentation clumped Spatially explicit Environmental simulation models fragmented Environmental effect medium clumped partially fragmented Several Several Realisations Realisations (e.g. (e.g. Gradient Gradient of of cropping cropping systems) # spatially explicit spatially explicit spatially aggregated aggregated Source: Thulke Thulke et al. et al. Landscape metrics

12 Landscape generators as tool for cooperation POF based projects about spatial ecological impacts of biomass use: They use the output of the landscape generator Cluster 3 contributions Dispersion & persistence: Birds, Butterflies Biomass estimates, CO2-Balance: Plant systems Functional connectivity: crucial for biodiversity, several taxa Understanding of spatial effects Landscape metrics as indicators Interpretation -> Biomass cultivation Input for spatially explicit Life cycle assessment (splca) of Bioenergy Systems analysis group

13 Result : Landscape generator prototype Example First version Forest, connected Small fields of diff. crops Next steps: Inclusion of field strips Scaling issues Field distributions 13

14 Summary Landscape generator for inclusion of small scale models into Landscape and regional impact assessment Natural landscape unit forest cover, fragmentation Integration of land use patterns (cropping systems) Integration of gradients, rivers and streams in cooperation with 14

15 15 Thank you for your attention! And Jeroen Everaars and Jan Engel for providing former versions. Questions? Contact: