RELATIONSHIP BETWEEN FARMING AND ECOLOGY Groupmates: cheung ho ming Lo ho mimg Lui lok yi mok hiu yan
HOW FARMING AFFECTS ECOLOGY POSITIVELY Farming needs ploughing of soil ， better air aeration ， more oxygen ， enables aerobic respiration of bacteria or organisms living in soil 。 Organic farming means there is no chemical fertilizerrs ， it provides nutrients to soil and therefore worms can be attracted ， and more organisms will be attracted by worms.
HOW FARMING AFFECTS ECOLOGY NRGATIVELY The pursuit of yield ， monoculture ， same niche ， lack of specific kind of nutrients ， unhealthy crops. Use of chemical control methods ， some is toxic to othere species ， toxins will be more concentrated along the higher trophic levels. Use of chemical control methods ， pest resistent ， does more harm than good. Chemical fertilizers ， raining ， nutrients washed into river ， eutrophication
HOW ECOLOGY AFFECTS FARMING POSITIVELY Decomposers decomposes dead body ， breaks them down into humus ， provides nutrients for growth. Legunme such as peanuts provide nitrate ， which is the basics minerals for plants growth. Predator eats pests ， increases abundance and yield. Earthworms help the plouging of soil ， ....
HOW ECOLOGY AFFECTS FARMING NEGATIVELY Pests eat crops esp monoculture,decrease in productivity. Physical factors ： typhoon ， drought ， flooding ， frost...ruins crops.
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