REM 100 Lecture Notes - Agricultural Biodiversity, Crop Diversity, Agrochemical

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Reduce agricultural pressure on fragile areas, forests and endangered species; Create more stable, robust and sustainable farming systems; Contribute to sound pest and disease management; Conserve soil and increase natural soil fertility and health. Reduce or spread risks to individuals and nations. Help maximize effective use of resources and the environment. Improve human nutrition and provide sources of medicines and vitamins and; Conserve ecosystem structure and stability of species diversity. Zimmerer (1999 and 2003) found that andean"s capacity to foster agrobiodiversity, growing diverse food plants, is dependent on the farmers" ability to cultivate both diverse crop types and commercial high yield varieties (hyvs); What is land degradation: land degradation is a process that reduces the productivity of farmland, this may require investments to restore productivity or it may be irreversible, the main sources are: Loss of soil fertility (eg nutrient depletion) What to do about land degradation: pretty (1995) suggests we encourage:

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