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DOI | 10.1080/13504509.2014.978832 |
An information theory-based approach to assessing the sustainability and stability of an island system | |
Vance, Leisha; Eason, Tarsha; Cabezas, Heriberto | |
发表日期 | 2015-01-02 |
ISSN | 1350-4509 |
卷号 | 22期号:1页码:64-75 |
英文摘要 | It is well documented that a sustainable system is based on environmental stewardship, economic viability, and social equity. What is often overlooked is the need for continuity such that desirable system behavior is maintained with mechanisms in place that facilitate the ability of core system functions to endure or adapt (in the face of perturbations), and ensure that future generations are able to meet their needs. Assessing regional systems poses unique challenges in that they are interlinked with larger- and smaller-scale dynamics that may dramatically affect trends in key system variables. From 1970-2009, Puerto Rico experienced a 140% increase in urban population which may have amplified impacts related to resource demands, waste production, and natural habitats. Because such changes can have strong implications for sustainability, the dynamics of Puerto Rico provide a great opportunity to explore methods for assessing the sustainability of a complex geographic region. In this work, we employ Fisher information, an information theory-based approach, to evaluate changes in system dynamics and examine the effect of regionalization impacts on trends in variables characterizing social, environmental, and economic aspects of the system. Results indicate dramatic change from 1981-1999, after which the system dynamics remained steady until 2005. While there was no indication that a regime shift occurred, system trends corresponded with variations in non-yield economic variables. To determine whether Fisher information provides warning signals of critical change, consecutive declines in the index were explored and demonstrated as a possible leading indicator of impending regime shifts. |
英文关键词 | Fisher information;Puerto Rico;regional system;sustainability;dynamic order;indicator |
语种 | 英语 |
WOS记录号 | WOS:000349155800007 |
来源期刊 | INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY
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来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/62499 |
作者单位 | US EPA, Off Res & Dev, Natl Risk Management Res Lab, Sustainable Technol Div, Cincinnati, OH 45268 USA |
推荐引用方式 GB/T 7714 | Vance, Leisha,Eason, Tarsha,Cabezas, Heriberto. An information theory-based approach to assessing the sustainability and stability of an island system[J]. 美国环保署,2015,22(1):64-75. |
APA | Vance, Leisha,Eason, Tarsha,&Cabezas, Heriberto.(2015).An information theory-based approach to assessing the sustainability and stability of an island system.INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY,22(1),64-75. |
MLA | Vance, Leisha,et al."An information theory-based approach to assessing the sustainability and stability of an island system".INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY 22.1(2015):64-75. |
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