By Stephen R. Gliessman
Offering the theoretical and conceptual framework for this starting to be box, 'Agroecology' develops the knowledge of environmental components and complexities affecting agricultural vegetation and animals. --Provided by means of publisher.
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Additional resources for Agroecology: the ecology of sustainable food systems
Have minimal negative effects on the environment and release insignificant amounts of toxic or damaging substances into the atmosphere, surface water, or groundwater; • Minimize the production of greenhouse gases, work to mitigate climate change by increasing the ability of managed systems to store fixed carbon, and facilitate human adaptation to a warming climate; • Preserve and rebuild soil fertility, prevent soil erosion, and maintain the soil’s ecological health; • Use water in a way that allows aquifers to be recharged and the water needs of the environment and people to be met; • Rely mainly on resources within the agroecosystem, including nearby communities, by replacing external inputs with nutrient cycling, better conservation, and an expanded base of ecological knowledge; • Work to value and conserve biological diversity, both in the wild and in domesticated landscapes; • Guarantee equality of access to appropriate agricultural practices, knowledge, and technologies and enable local control of agricultural resources; • Eliminate hunger, ensure food security in culturally appropriate ways, and guarantee every human being a right to adequate food; • Remove social, economic, and political injustices from food systems.
Nitrates from fertilizers and livestock manure are also a major contaminant of drinking water in many areas. When nitrates enter aquifers they are not easily removed, and frequently alternative drinking water sources are not available. As a result, many people in agricultural regions are exposed to nitrate levels in excess of established safe thresholds and have an increased risk of cancer and reproductive disorders. Rounding out the list of pollutants from croplands are salts and sediments, which in many locales have degraded streams, helped destroy fisheries, and rendered wetlands unfit for bird life.
Traditional, peasant-managed agroecosystems, despite being beleaguered by the encroachment of 17 Case for Fundamental Change in Agriculture It is not an exaggeration to say that the sustainable food system of the future, considered as a whole, will represent a paradigm shift. Like traditional and indigenous agroecosystems, it will conserve resources and minimize exogenous inputs. Like industrial agriculture, it will be very productive. And unlike any system of food production that has heretofore existed on the planet, it will combine these attributes while distributing its benefits equitably among human beings and societies and refraining from displacing its costs onto natural ecosystems increasingly pushed to the brink of collapse.
Agroecology: the ecology of sustainable food systems by Stephen R. Gliessman