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Natural Ecosystem Agricultural Ecosystem
Solar energy only Solar energy + from FOOD & FOSSIL fuels
LOWER PRODUCTIVITY HIGHER PRODUCTIVITY
MORE SPECIES DIVERSITY LESS SPECIES DIVERSITY
MORE GENETIC DIVERSITY within species Less genetic diversity within species
Nutrients recycled naturally Natural recycling limited, addition of FERTILISERS
Populations controlled by NATURAL MEANS (competition, climate) Populations controlled by both NATURE and
PESTICIDES/CULTIVATION
Natural climax community Artificial community prevented from reaching climax- harvest...…read more

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