By Gloria I. Guzman Casado, Manuel Gonzalez de Molina
Energy in Agroecosystems: a device for Assessing Sustainability is the 1st publication on strength research that's updated and particularly devoted to agriculture. it's written from an agroecological viewpoint and is going past the traditional research of the effective use of power. The e-book offer a methodological consultant to evaluate power potency and sustainability from an eco-energetic perspective.
Case reviews from either Europe and the US, that are consultant of today’s such a lot used scales of study (crop, farm, neighborhood or nationwide) and different farm administration practices (traditional, industrialized, and modern organic), observe this system This ebook could be of basic curiosity to researchers, practitioners, and scholars operating within the components of agroecology, sustainable agriculture, environmental technological know-how, power research, common assets administration, rural improvement and foreign development.
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Extra resources for Energy in agroecosystems: a tool for assessing sustainability
The existence, configuration, maintenance, and reproduction of societies require a continual supply of energy and materials, along with the dissipation of part of that energy. Entropy is also the key element in the functioning of societies: by exchanging information, energy, and matter with their environment, societies are also subject to the laws of thermodynamics. So, we assume that entropy is common to all natural processes, be these human or of any other nature. This grounds our understanding of the material structure, functioning, and dynamics of human societies as based on a thermodynamic understanding as biological systems, which they also are.
The difference in the way each fund element is measured expresses a fundamental characteristic: that these fund elements are only partially interchangeable and that the flows that reproduce them are different in terms of their identity. Their reproduction requires an amount of energy in terms of biomass and human labor, which must be dealt with in each productive process. The energy required for this can only be replaced partially with external energy, given their different nature. For example, only biomass can be used to nourish the trophic chains that sustain edaphic life and the general biodiversity of the agroecosystem.
2008a, p. 3). The metabolic relationship established by each society with its agrarian environment has access to different fund elements. We are focusing here on the elements that are critical for the reproduction of agroecosystems themselves and for the provision of their services, including the supply of biomass as the principal service. We have considered four elements (land, livestock, human labor, and traction, also known as technical capital). However, a more precise description requires a distinction to be drawn between biophysical fund elements and social fund elements that are closely interlinked, as a reflection of the socioecological relations that are at the heart of the agrarian metabolism.
Energy in agroecosystems: a tool for assessing sustainability by Gloria I. Guzman Casado, Manuel Gonzalez de Molina