Emergy, environ, exergy and ecological modelling

摘要: Abstract Hitherto, applied calculations of exergy for higher organisms have been based on traditional thermodynamic considerations, which did not take into account the organizational level organisms. It seems reasonable to include such perspectives in a evaluation ecosystems. Therefore, two methods that are theoretically more sound proposed this paper. The first is upon information due genes. method rooted statistical thermodynamics and should be considered best candidate ecosystems including second parallel used calculation emergy, cost free energy computed from an ecological network. Because does consider increase evolution, it less than mentioned method. is, however, interesting compare methods, as they certain extent reflect differences between emergy exergy. Emergy attempts, exergy, quality by use transformity factor. factors found network number solar equivalents has construct organism. therefore often easy compute, provided known, while after new presented here better theoretical basis. tested give different results, but results same order magnitude. major problems development models parameter estimation selection model structure. latter requires system properties incorporated our models. A procedure recent developments ecosystem theory meet requirement. approach improvement modelling with properties.