Applications of Systems Dynamics in Integrated Modeling of Humans Embedded in Ecological System rt Costanza and Lulie Gund Professor of Ecological Economics rector, Gund Institute of Ecological Economics tein School of Environment and Natural Resources iversity of Vermont gton, VT 05405 www.uvm.edu/giee
25
Embed
Applications of Systems Dynamics in Integrated Modeling of Humans Embedded in Ecological System Robert Costanza Gordon and Lulie Gund Professor of Ecological.
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Applications of Systems Dynamics in
Integrated Modeling of Humans Embedded in Ecological System
Robert CostanzaGordon and Lulie Gund Professor of Ecological Economics and Director, Gund Institute of Ecological EconomicsRubenstein School of Environment and Natural ResourcesThe University of VermontBurlington, VT 05405 www.uvm.edu/giee
• Intelligent Pluralism (Multiple Modeling Approaches), Testing, Cross-Calibration, and Integration
• Multi-scale in time, space, and complexity
• Can be used as a Consensus Building Tool in an Open, Participatory Process
• Acknowledges Uncertainty and Limited Predictability
• Acknowledges Values of Stakeholders
• Evolutionary Approach Acknowledges History, Limited Optimization, and the Co-Evolution of Human Culture and Biology with the Rest of Nature
Integrated Modeling of Humans Embedded in Ecological System
Typical result:Specialized modelwhose recommendationnever gets implementedbecause they lackstakeholder support
STATUS QUO
Typical res ult:Confrontational debateand no improvement
MEDIATED DISCUSSION
Typical result:Consensus on goals orproblems but no help onhow to achieve the goals orsolve the problems
MEDIATED MODELING
Typical result:Consensus on bothproblems/goals and process -leading to effective andimplementable policies
- +
-
+
Degree of Consensus among Stakeholders
Major opportunities exist to enhance acceptance of models for decision-making through participation in model development
From: Van den Belt, M. 2004. Mediated Modeling: A System Dynamics Approach To Environmental Consensus Building. Island Press, Washington, DC.
1. Scoping Models high generality, low resolution models produced with broad participation by all the stakeholder groups affected by the problem.
2. Research Models more detailed and realistic attempts to replicate the dynamics of the particular system of interest with the emphasis on calibration and testing.
3. Management Models medium to high resolution models based on the previous two stages with the emphasis on producing future management scenarios - can be simply exercising the scoping or research models or may require further elaboration to allow application to management questions
Three Step Modeling Process*
Increasing Complexity,
Cost, Realism,and Precision
*from: Costanza, R. and M. Ruth. 1998. Using dynamic modeling to scope environmental problems and build consensus. Environmental Management 22:183-195.SUMBER: www.iseesystems.com/community/...2008/...Modeling/ISEE_Stella.ppt
Scale
Two elements:•Resolution: grain size, time step, pixel size, etc.•Extent: size of the map, time frame, etc.
Three complementary and synergistic ways to include humans in integrated models:
1. As “stakeholders” and active participants in the model conceptualization, development, construction, testing, scenario development, and implementation processes.
2. As “players” of the models where the model is used as both a decision aid and as a research tool to better understand human behavior in complex valuation and decision processes.
3. As “agents” programmed into the model based on better understanding of their goals and behavior gleaned through 1 and 2.
* Building on work originally reported in: Costanza, R., F. H. Sklar, and M. L. White. 1990. Modeling coastal landscape dynamics. BioScience 40:91-107.
The ELM is a regional scale ecological model designed to predict thelandscape response to different water management scenarios insouth Florida, USA. The ELM simulates changes to the hydrology,soil & water nutrients, periphyton biomass & community type, andvegetation biomass & community type in the Everglades region.
Current DevelopersSouth Florida Water Management DistrictH. Carl FitzFred H. SklarYegang WuCharles CornwellTim Waring
Recent Collaboratorss
Alexey A. VoinovRobert CostanzaTom MaxwellFlorida Atlantic UniversityMatthew Evett
The Patuxent and Gwynns Falls Watershed Models(PLM and GFLM)
http://www.uvm.edu/giee/PLMThis project is aimed at developing integrated knowledge and newtools to enhance predictive understanding of watershed ecosystems(including processes and mechanisms that govern the interconnect-ed dynamics of water, nutrients, toxins, and biotic components) andtheir linkage to human factors affecting water and watersheds. Thegoal is effective management at the watershed scale.
Costanza, R., A. Voinov, R. Boumans, T. Maxwell, F. Villa, L. Wainger, and H. Voinov. 2002. Integrated ecological economic modeling of the Patuxent River watershed, Maryland. Ecological Monographs 72:203-231. SUMBER: www.iseesystems.com/community/...2008/...Modeling/ISEE_Stella.ppt
Forest Resid Urban Agro Atmos Fertil Decomp Septic N aver. N max N min Wmax Wmin N gw c. NPP
Scenario number of cells kg/ha/year mg/l m/year mg/l kg/m2/y
* From: Costanza, R., A. Voinov, R. Boumans, T. Maxwell, F. Villa, L. Wainger, and H. Voinov. 2002. Integrated ecological economic modeling of the Patuxent River watershed, Maryland. Ecological Monographs 72:203-231.
Land Use Nitrogen Loading Nitrogen to Estuary Hydrology N in GW NPP
From: Boumans, R., R. Costanza, J. Farley, M. A. Wilson, R. Portela, J. Rotmans, F. Villa, and M. Grasso. 2002. Modeling the Dynamics of the Integrated Earth System and the Value of Global Ecosystem Services Using the GUMBO Model. Ecological Economics 41: 529-560
Atmosphere
Anthropo-sphere
EcosystemServices
HumanImpacts
Natural Capital Human-madeCapital(includes Built CapitalHuman Capital,and Social Capital
Global Unified Metamodel of the BiOsphere (GUMBO)• was developed to simulate the integrated earth system and assess the dynamics and
values of ecosystem services. • is a “metamodel” in that it represents a synthesis and a simplification of several
existing dynamic global models in both the natural and social sciences at an intermediate level of complexity.
• the current version of the model contains 234 state variables, 930 variables total, and 1715 parameters.
• is the first global model to include the dynamic feedbacks among human technology, economic production and welfare, and ecosystem goods and services within the dynamic earth system.
• includes modules to simulate carbon, water, and nutrient fluxes through the Atmosphere, Lithosphere, Hydrosphere, and Biosphere of the global system. Social and economic dynamics are simulated within the Anthroposphere.
• links these five spheres across eleven biomes, which together encompass the entire surface of the planet.
• simulates the dynamics of eleven major ecosystem goods and services for each of the biomes
Ecotopia Startrek MadMax Big GovermentBasecase Observations
GUMBO
0
1
2
3
4Atmosphere
Water Cycle
Land - Soil
Demographic
Political
Development
Cultural-Values
Economics
Landuse change
Industry - Pollution
Energy
Agriculture
Freshwater
Biogeochemistry
Natural Systems
Social SystemsHuman - Environment Feedback
TARGETS
0
1
2
3
4Atmosphere
Water Cycle
Land - Soil
Demographic
Political
Development
Cultural-Values
Economics
Landuse change
Industry - Pollution
Energy
Agriculture
Freshwater
Biogeochemistry
Natural Systems
Social SystemsHuman - Environment Feedback
DICE
0
1
2
3
4Atmosphere
Water Cycle
Land - Soil
Demographic
Political
Development
Cultural-Values
Economics
Landuse change
Industry - Pollution
Energy
Agriculture
Freshwater
Biogeochemistry
Natural Systems
Social SystemsHuman - Environment Feedback
IFs
0
1
2
3
4Atmosphere
Water Cycle
Land - Soil
Demographic
Political
Development
Cultural-Values
Economics
Landuse change
Industry - Pollution
Energy
Agriculture
Freshwater
Biogeochemistry
Natural Systems
Social SystemsHuman - Environment Feedback
IMAGE-2
0
1
2
3
4Atmosphere
Water Cycle
Land - Soil
Demographic
Political
Development
Cultural-Values
Economics
Landuse change
Industry - Pollution
Energy
Agriculture
Freshwater
Biogeochemistry
Natural Systems
Social SystemsHuman - Environment Feedback
IMAGE
0
1
2
3
4Atmosphere
Water Cycle
Land - Soil
Demographic
Political
Development
Cultural-Values
Economics
Landuse change
Industry - Pollution
Energy
Agriculture
Freshwater
Biogeochemistry
Natural Systems
Social SystemsHuman - Environment Feedback
WORLD3
0
1
2
3
4Atmosphere
Water Cycle
Land - Soil
Demographic
Political
Development
Cultural-Values
Economics
Landuse change
Industry - Pollution
Energy
Agriculture
Freshwater
Biogeochemistry
Natural Systems
Social SystemsHuman - Environment Feedback
MODEL COMPLEXITY0 = Not addressed in model.1 = Exogenous input to model.2 = Endogenous w/o feedback in model3 = Endogenous w/ feedback (mid-complexity)4 = Endogenous w/ feedback (very complex)
DEGREE OF HISTORIC CALIBRATIONLow High Amoeba diagram of
complexity with which Integrated Global Models (IGMs) capture socioeconomic systems, natural systems, and feedbacks (from Costanza, R., R. Leemans, R. Boumans, and E. Gaddis. 2006. Integrated global models. Pp 417-446 in: Costanza, R., L. J. Graumlich, and W. Steffen (eds.). Sustainability or Collapse?: An Integrated History and future Of People on Earth. Dahlem Workshop Report 96. MIT Press. Cambridge, MA.