کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10682972 | 1016239 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Towards a sustainability index using information theory
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We explore the use of Fisher Information as a basis for an index of sustainability. Sustainability of an ecosystem refers to the robustness of a preferred dynamic regime to human and natural disturbances. Ecosystems under perturbations of varying regularity and intensity can either remain within the current regime or transition into the neighbourhood of a regime with different (viz. less desirable) characteristics. The Fisher Information index we develop is based on the probability of finding the system in a particular state. We apply the index to a 10-compartment food web model with five functional groups: detritus, primary producers, herbivores, carnivores, and an omnivore. Fisher Information is shown to be sensitive to transients in model generated data. Such transients can be indicative of a transition to a new dynamic regime. Early detection of transitions to undesirable regimes may permit management intervention.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 30, Issue 8, June 2005, Pages 1221-1231
Journal: Energy - Volume 30, Issue 8, June 2005, Pages 1221-1231
نویسندگان
Christopher W. Pawlowski, Brian D. Fath, Audrey L. Mayer, Heriberto Cabezas,