Land degradation means a loss of management options

نویسندگان

چکیده

This essay approaches land degradation by targeting its ultimate thermodynamic causes, rather than immediate environmental consequences. The objective is to make some propositions that could help understand the essence of process, and contribute a theoretical framework be developed. These are: 1. Human populations are an ecosystem component, not external driver. 2. Coupled Natural Systems (CHANS) tend increase their overall complexity over time. CHANS cannot feasibly managed. 3. made up two types subsystems, consuming Foreland (FL) consisting human population, producing Backland (BL) in environment. 4. FL maintains order at expense simplifying BL, which becomes entropy sink. ecological degradation, inherent persistence. 5. Land state, landscape type. Hence it should assessed within complete range states maturity. 6. use creates proportional simplification ecosystems involved. Such can defined as decrease exergy, results loss management options. Three associated corollaries a) A more effective target may regulate attempt eliminate degradation; b) Monitoring trajectories assessing states; c) decreased maximizing potential for interconversion between uses.

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ژورنال

عنوان ژورنال: Journal of Arid Environments

سال: 2021

ISSN: ['1095-922X', '0140-1963']

DOI: https://doi.org/10.1016/j.jaridenv.2021.104502