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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    GeoJournal 17 (1988), S. 279-287 
    ISSN: 1572-9893
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography
    Notes: Abstract Systems analysis of the responses of forest trees to air pollutants led to mathematical models which represent the essential life processes of mature trees (photosynthesis, respiration, growth etc.) under ‘normal’ conditions and — especially — under pollution strees. Computer simulations using these models have made it possible to test and analyse the consequences of — known or hypothetical — pollution effects. The simulation runs have led to the identification of three distinct behavioural modes (growth, stagnation, breakdown) and corresponding stable and unstable system states. The results have produced new insights and contributed to the understanding of the dieback process of spruce and beech trees. The presentation will concentrate on the most recent and most complex of the hitherto existing models, theBeech model.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Annals of operations research 54 (1994), S. 175-202 
    ISSN: 1572-9338
    Keywords: System dynamics ; forest development ; JEL C44 ; Q23
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract Successful management and stewardship of environmental systems requires reliable assessment of their development dynamics in response to changing environmental and management conditions. Descriptive (statistical) models cannot cope with this challenge since their development is based on historical time series with little or no reference to actual system structure. On the other hand, explanatory (process) models attempt to capture the essential eco-physiological processes determining dynamic behavior, and they are therefore much better suited for the computation of development dynamics under changing conditions, even when long-term empirical observations are not possible or feasible. As an example of the use of process models in environmental systems analysis, a forest simulation model describing growth, and carbon and nitrogen dynamics of a single-species, even-aged forest stand under silvicultural management and pollution influences is presented, together with some representative simulation results. Steps in obtaining valid but compact tree models for complex forest simulations are outlined, and recent software developments (object-oriented programming) are assessed with respect to their potential for environmental systems analysis.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Environmental modeling and assessment 1 (1996), S. 193-218 
    ISSN: 1573-2967
    Keywords: Sustainable development ; viability ; indicators ; orientors ; ethics ; future discount ; assessment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Assessments of current and future development paths require comprehensive sets of indicators covering all essential aspects. From a holistic systems point of view, most currently proposed indicator sets are incomplete and deficient. Assessments of sustainable development require a full representation of the satisfaction states of the “basic orientors” (=fundamental interests) of constituent sector systems, and of their contribution to basic orientor satisfaction of the total system. Basic orientors are value dimensions (existence, effectiveness, freedom of action, security, adaptability, coexistence) emerging from a self-organizing system's interaction with its environment, and its fundamental properties (normal environmental state, scarce resources, variety, variability, change, other systems). Basic orientors are also reflected in human emotions, societal punishment, psychological and social needs, life styles, and values emerging in self-organization of artificial life. The relative weight assigned to basic orientors of partner systems is a question of ethics. Based on these concepts, a general scheme for finding a “complete” set of indicators of viability and sustainability is derived, and it is applied to deriving a comprehensive set of indicators of sustainable development for society and its sector systems (infrastructure, economic system, social system, individual development, government, environment and resource system). The method can be applied at different levels of complexity and regional resolution. A full set of regional indicators for sustainable development is presented, a method for compact assessment of development paths using orientor stars is described, and the approach for application at the community level is outlined.
    Type of Medium: Electronic Resource
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  • 4
    Book
    Book
    Norderstedt :Books on Demand,
    Title: Klima, Ökosysteme und Ressourcen /
    Author: Bossel, Hartmut
    Publisher: Norderstedt :Books on Demand,
    Year of publication: 2004
    Pages: 236 S.
    Series Statement: Systemzoo
    Type of Medium: Book
    Language: German
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  • 5
    Book
    Book
    Norderstedt :Books on Demand,
    Title: Wirtschaft, Gesellschaft und Entwicklung /; 3
    Author: Bossel, Hartmut
    Publisher: Norderstedt :Books on Demand,
    Year of publication: 2004
    Pages: 308 S.
    Series Statement: Systemzoo 3
    Type of Medium: Book
    Language: German
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  • 6
    Book
    Book
    Norderstedt :Books on Demand,
    Title: Systeme, Dynamik, Simulation /
    Author: Bossel, Hartmut
    Publisher: Norderstedt :Books on Demand,
    Year of publication: 2004
    Pages: 400 S. : , graph. Darst. ; , 170 mm x 220 mm
    ISBN: 3-8334-0984-3
    Type of Medium: Book
    Language: German
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  • 7
    Book
    Book
    Norderstedt :Books on Demand,
    Title: Elementarsysteme, Technik und Physik /; 1
    Author: Bossel, Hartmut
    Publisher: Norderstedt :Books on Demand,
    Year of publication: 2007
    Pages: 208 S.
    Series Statement: Systemzoo 1
    Type of Medium: Book
    Language: German
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  • 8
    Book
    Book
    Norderstedt :Books on Demand
    Title: Systemzoo /
    Author: Bossel, Hartmut
    Publisher: Norderstedt :Books on Demand
    Type of Medium: Book
    Language: German
    Library Location Call Number Volume/Issue/Year Availability
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