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THE IMPACT OF AGRICULTURE ON PEOPLOE AND THE ENVIRONMENT - Coggle Diagram
THE IMPACT OF AGRICULTURE ON PEOPLOE AND THE ENVIRONMENT
OVERUSE OF INSECTICIDES & HERBICIDES
: :
Regular use of fertilizers
RESISTANCE
the toxic chemical no longer kills all the target pest individuals.
Increasing the dose
Short-term
It can help the pesticide resistance build up even more rapidly
Insecticides
can kill beneficial insects
Affect the wider food web (birds)
Spray drfit
chemical reaches unintended target
environmental damage
Heavy rainfall
leaching of insecticides or herbicides into rivers
contamination of the water supply
Livestock
is given medication to prevent infections
resistance is formed
humans and livestock at risk of illness or death.
MISUSE OF FERTILISERS
Additional application of fertiliser
When plants reach maximum nutrient level
waste of money and resources + negative impact on the environment
Weather has to be optimum
heavy rain can wash away nutrients + bad climate conditions can cause the roots to take up fewer mineral nutrients
Water containing dissolved fertilisers
goes into rivers and lakes
disrupts the natural balance
Excess of Nitrogen & Phosphorus
EUTROPHICATION
Changes in the soil pH
Plants get dehydrated
the concentration of minerals in soil is higher than inside the plant so water flows out of it
Lush growth
Plants grow so rapidly that are unable to support itself
High concentration of water leaches into the drinking supply
Impacts humans
Blue baby syndrome
newborn babies have skin tissues that are low in O2
Inorganic fertilisers
likely to be washed away by heavy rain
Organic fertilisers
High risk of over application
MISUSE OF IRRIGATION
Damage to the soil structure (soil compaction)
Death of plant roots (they get suffocated)
Loss of nutrients (as water drains away, nutrients are taken with it)
Soil erosion (water run-off takes soil particles with it)
Soil capping (soil surface might become hard and compact, making it hard for plants to grow)
Salinization
Preventing soil cultivation (if the soil is too wet, machines can get stuck because the soil structure cannot support them)