1/10/2024 0 Comments Information entropy2007 a) at regional and global scales, researchers interested in their management are continuously searching for indicators of the state and trajectory of these systems relative to sustainability targets, e.g., indicators such as a system’s resilience to perturbations (Scheffer et al. Because of the size and complexity of CHANS (also known as human-environment, human-nature, or social-ecological systems Liu et al. This definition describes coupled human and natural systems (CHANS) in which a desired level of human use of natural resources and ecosystem services can persist indefinitely (Mayer et al. In 1987, the Bruntland Commission wrote a widely cited definition of sustainable development: “to meet the needs of the present without compromising the ability of future generations to meet their own needs” (World Commission on Environment and Development 1987:43). Key words: CHANS feedbacks information theory sustainability INTRODUCTION We propose a combination of information-based indices that might productively inform our sustainability goals, particularly when related to key feedbacks in CHANS. Here, we provide a review of information theory and a theoretical framework for studying the dynamics of feedbacks in CHANS. These measures have been used for spatial and temporal datasets to monitor progress toward sustainability targets. An information theory perspective may help to rectify this situation, as evidenced by recent research in sustainability science that supports the use of unit-free measures such as Shannon entropy and Fisher information to aggregate disparate indicators. However, the use of specific feedbacks as monitoring tools is rare, possibly because of uncertainties regarding the nature of their dynamics and the diversity of types of feedbacks encountered in these systems. Specific indicators that give insight into the structure and behavior of feedbacks in CHANS are of particular interest because they would aid in the sustainable management of these systems through an understanding of the structures that govern system behavior. Sustainable development can be defined as the process by which CHANS can be moved toward sustainability. For coupled human and natural systems (CHANS), sustainability can be defined operationally as a feasible, desirable set of flows (material, currency, information, energy, individuals, etc.) that can be maintained despite internal changes and changes in the environment.
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