Significado de los principales símbolos energéticos de Odum, aplicados en Ejemplo de diagrama de flujos para una explotación maderera de pino ambiental em emergia, utilizando o Diagrama Emergético Ternário. . Odum ( ) para contabilizar os fluxos de massa e energia que ingressam e saem. um apanhado do desenvolvimento dos conceitos de forma de planta e .. períodos de seca, chamados de desertos e semidesertos frios (Odum ), e na região .. Figura 4 – Diagrama bioclimático de Dansereau (), em que as letras.
|Genre:||Health and Food|
|Published (Last):||21 October 2015|
|PDF File Size:||17.80 Mb|
|ePub File Size:||9.59 Mb|
|Price:||Free* [*Free Regsitration Required]|
For the American sociologist, see Howard W. Odum’s contributions to this field have been recognised by the Mars Society.
Alexander Bogdanov Russell L. Emergy and ecosystems Self-organization Odum, ; Odum, Aquatic and marine ecosystems Odum et al. Ecological Engineerin g, 5, p. This was the professional society that earlier was named the International Society for General Systems Research.
Howard T. Odum
Efficienc and sustainability indicators for passenger and commodities transportation systems. Environmental space and the prism of sustainability: Emergy, material flows and recycling Mining and minerals processing Odum, ; Pulselli et al. The reason that systems can not proceed toward some kind of disintegration is that such a pattern has no mechanism of maintaining itself. Ecological Modelling77, p. Afterthe emergy methodology continued to develop as the community of scientists expanded and as new applied research into combined systems of humans and nature presented new conceptual and theoretical questions.
Odum’s career, 23 September With Discussion on diavrama Ecological Integration of Elements. Gainesville, FloridaU. Ecology, thermodynamics and H. After her death, he married Elizabeth C. As soon as it does the system fits the definition of an entity.
Kangas noted that Odum first set out the theory that Ohm’s Law from electronics was analogous to the thermodynamic functioning of ecosystemsp. Energetics of food production. This, according to Odum, necessitated a fundamental change in the way ecologists thought about predator-prey relationships.
The idea that a calorie of sunlight is not equivalent to a calorie of fossil fuel or electricity strikes many as absurd, based odim the 1st Law definition of energy units as measures of heat i.
Importance of the Bradhyrizobium japonicum symbiosis for the sustainability of a soybean cultivation.
In Odum’s work these concepts form part of what Hagen called an, “ambitious and idiosyncratic attempt to create a universal science of systems” Ibid. Odum wrote some 15 books and papers, and a Festschrift volume Maximum Power: With the aim of ternary diagrams, aspects such as the fiagrama between systems and the interactions between systems and the environment can be readily recognized and evaluated.
He presented many papers on the topic at its annual conferences as well as edited the last published General Systems Yearbook.
In trying to solve the ecosystem, idum compares it to an electrical system, for which the synthetic knowledge is much greater, and also one attempts to generalize more or less in the way of steady-state thermodynamics. Hutchinson who expressed the view that if a community were an organism then it ed have a form of metabolism. Doubling time Leverage points Limiting factor Negative feedback Positive feedback.
Decision-making tool considering the interaction of the production systems and the environment
Tropical Ecology 16 l: However the concept orum neither free from controversy nor without its critics. From this view, biogeochemical cycles are driven by radiant energy.
Some consider the concept of “emergy”, sometimes briefly defined as “energy memory”, as one of Odum’s more significant contributions. During this time Odum became aware of the interplay of ecological-energetic and economic forces. After the war, he returned to the University of North Carolina and completed his B. Concepts and methods in ecological engineering. Odum in  well before he worked at the University of Florida. Metrics to ‘green’ chemistry – which are the best? Odum together with David M.
Industrial Pollution Prevention, Berlin: Some of his energy models and simulations contained general systems components. It was the presence of stability which, Odum believed, enabled him to talk about the teleology of such systems. Odum developed an analogue of Ohm’s Law which aimed to be dde representation of energy flows through ecosystems.
In observing the way higher order trophic levels have a control function in ecosystems, H. Environmental management and its impact on the operations functions. House of Representatives,U.
Purchased inputs are needed for the process to take place and include human service and purchased non-renewable energy odun material brought in from elsewhere fuels, minerals, electricity, machinery, fertilizer, etc. Organic matter the baseline. The scale of energy goes from dilute sunlight up to plant matter, to coal, from coal to oil, to electricity and up to the high quality efforts of computer and human information processing.
From to H. Started from that overall model Odum “mapped in detail all the flow routes to and from the stream.
Emergy – Wikipedia
They continued to collaborate in research as well as writing for the rest of their lives. It is important to note that throughout this twenty years the baseline or the basis for evaluating forms of energy and resources shifted from odu matter, to fossil fuels and finally to solar energy.
Odum left a large legacy in many fields associated with ecology, systems, and energetics.