EMERGY & ENERGY SYSTEMS EMERGY & ENERGY SYSTEMS Session 2 Short Course for ECO Interns, EPA and Partners
Dec 30, 2015
EMERGY & ENERGY SYSTEMSEMERGY & ENERGY SYSTEMS
Session 2 Short Course for ECO Interns,
EPA and Partners
Energy Language DiagramsEnergy Language Diagrams
• Boundary definitions• System components• Driving forces• Structure in symbols • Function in pathways• Interactions• Recycle• Sinks• The really great thing about energy
language notation
Boundary DefinitionsBoundary Definitions
• X-Y plane – preserve boundary
XY
Z
• Z axis – top soil horizon to tree tops
Function in PathwaysFunction in Pathways
Force or flow – unidirectional
Diffusion or backforce – no arrows
O2, CO2
O2 CO2
Water
Gasoline
Gasoline
InteractionsInteractions• Fluid transported sources (or any energy or material
that flows in proportion to another pathway)
River waterW Nutrients
N
SedimentsS
Jw
Jn
Js
Jw= kw*WJn = kn*W*NJs = ks*W*S
InteractionsInteractions
Productivity
Energy tostorage
Energy used topull in more energy
Autocatalytic feedback
InteractionsInteractions
Price and coupled flows
Price determined by outside source
P
Price determined by available commodity
P
$
Show money tankIf accumulating
Order of ConcentrationOrder of Concentration
Increasing Increasing concentration or concentration or
qualityquality
Aggregation of diagramsAggregation of diagrams
• What to lump and what to leave? Don’t lose important components – combine
• Remember the question How does the value of environmental services and
natural areas compare to the value of potential development?
Aggregation of diagramsAggregation of diagramsSun, rain, runoff, tides/wavesWater (groundwater, surface water)Saltwater community (mangroves, salt marsh, salt, oyster reefs, vegetated marine, sediments, organics, detritus, inverts)Terrestrial communities (xeric, hammocks, cypress, marsh, sediments, organics, detritus, inverts)Development (boaters, scientists, private holdings, nature lovers, hunters/fishers, pesticides, nutrients)Fish (adults, juveniles)BirdsGoods & ServicesFunding