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Evaluation of sustainability and the impact of the agriculture styles of the chilean coastal dry lands Acta Agron. (Palmira)
González-Ulibarry,Paco; García-Elizalde,Pedro; Gastó-Corderch,Juan; De Kartzow-Garcia,Alejandro; Obando-Ulloa,Javier Mauricio.
Abstract Agriculture has been progressing continuously, from the use of free natural resources to the fossil fuels as energy sources. Even though agriculture depends mainly on ecosystem resources and services, its development has been apparently centered only on yield, not considering neither the ecological value of the negative externalities nor the decapitalization of the resources that influence sustainability. Thus, the information on the evaluation of the sustainability on different agriculture styles is scarce or almost null. This investigation evaluates the sustainability in different agriculture styles (intensive horticulture, traditional farm and self-sustaining horticulture) established in Hualqui (Region of Biobío, Chile), through the energy...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Emergy; Horticulture; Emergy index and cultural landscape.
Ano: 2017 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000100109
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La Valutazione dei Servizi Ecosistemici. Proposta per un Approccio Termoeconomico AgEcon
Longhitano, Davide.
The main objective of this communication is to review the theoretical ecosystem and agroecosystem services assessment’s methods and to propose a thermoeconomic approach. The logic of thermoeconomic approach consists in analysing the use of natural resources during the production process, interpreting it as a thermodynamic conversion in order to assess the overall specific energy consumption of the systemic components arriving at estimates of fluxes and energy costs. This study analyses comparatively the main thermoeconomic-based approaches to verify the feasibility of the "energy value" as an appraisal criterion of agroecosystem services. In particularly among the reviewed approaches the Emergy synthesis seems the most appropriate tool to be empirically...
Tipo: Presentation Palavras-chave: Thermoeconomic approach; Agroecosystem services; Exergy; Emergy; Environmental accounting; Resource /Energy Economics and Policy; Q56; Q57.
Ano: 2012 URL: http://purl.umn.edu/124123
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Understanding Complex Human Ecosystems: The Case of Ecotourism on Bonaire Ecology and Society
Abel, Thomas; National Taipei University; tabel@mail.ntpu.edu.tw.
It is suggested that ecotourism development on the island of Bonaire can be productively understood as a perturbation of a complex human ecosystem. Inputs associated with ecotourism have fueled transformations of the island ecology and sociocultural system. The results of this study indicate that Bonaire's social and economic hierarchy is approaching a new, stable systems state following a 50-yr transition begun by government and industry that stabilized with the appearance of ecotourism development and population growth. Ecotourism can be understood to have "filled in" the middle of the production hierarchy of Bonaire. Interpreted from this perspective, population growth has completed the transformation by expanding into production niches at smaller...
Tipo: Peer-Reviewed Reports Palavras-chave: Bonaire; Complex systems; Cultural evolution; Ecological economics; Ecosystems; Emergy; Human demography; Political ecology; Social structure; Sociocultural systems; World systems.
Ano: 2003
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