5.3 Flashcards
The Green Revolution
The Green Revolution
Shift in agriculture away from small, family-operated farms to large, industrial-scale agribusiness
what do they start to increase to use in the green rev?
Increased use of mechanization, GMOs, irrigation, fertilizers, and pesticides
advantage of the green rev
- increases the profit and efficiency of farming and food supplies
- Decreased world hunger and
- increased earth’s carrying capacity
disadv of the green rev
- soil erosion (remove of topsoil by wind, rain, human activity)
- biodiversity loss
- ground & surface water contamination, bad for humans
Mechanization
The use of machines to perform farming tasks, increasing efficiency and productivity.
adv of mechanization
can increase profits and efficiency for farms
disadv of mechanization
- Increases reliance on fossil fuels (gasoline/diesel fuel) ,climate change
- 무거워서 soil compact해서 decreasing HO2 holding capacity
High-Yield Variety (HYV)
modified crops that have higher yield(생산량), Hybrid (plant 두개 짝짓기), GMO (plant에다가 gene을 합친다, new gene in genome)
GMOs
Genetically Modified Organisms are organisms whose DNA has been altered for specific traits, like pest resistance or higher yields.
adv of GMOs
plants lost to drought, disease, or pests yield/acre
disadv of GMOs
다 똑같아서 less BIODIVERSITY, easily 공격당해(susceptibility) to diseases or pest(벌레)
Synthetic (인조) Fertilizer
man-made chemical fertilizer designed to supply essential nutrients like nitrogen(N), phosphorus(P), and potassium(K) to plants, promoting growth and increasing agricultural yields.
adv of synthetic fertilizer
Increases yield and profits with more key nutrients needed for plant growth (N, P, K) added to the soil
disadv of synthetic fertilizer
excess of N P K can washed off to rivers that causes eutrophication
+ need FF to produce releasing CO2 increase temp
Irrigation (관개 /인공적인 물 발사)
Drawing water from the ground or nearby surface waters and distributing it on fields to increase plant growth