5.3 Green Revolution

The Green Revolution was a shift in agriculture from a small farms to larger farms, started in 1940s and really took of in the 1960s

  • New Agriculture strategies and practices

  • Has positive and negative impacts\

Mechanization - use of machines instead of hand labor

Higher Profit Yield and Profits

Easy to Use

Specialized and upgraded and effiecient

Fossil Fuel issues

Compact Soil

Loss of Jobs

High-Yield Variety Crops

Crops can produce higher yields

Better Quality

Shorter Cycle

More Water

Soil Issues

Narrow Genetic diversity

GMOs

Less Pesticides

Saves $

More nutrients

disease risistance

Less pesticides in enviroment

Antibiotic risistance

Seeds Cost more

Kills non target species

Sythetic Fertilizer - man made to add nutrients back into soil

Can be customized

Released overtime

Mass produce

Easily Shipped

Higher Crop Yield

Easily released into runoff

Eutrophication

Disrupts Nitrogen Cycle

Irrigation - allowed for cultivation of crops in areas previously lacked water

Customizable

Maximizes yield

Depletes FW supplies

Waterlogging

Salinization

Pesticides - used to kill insects and other pest (fungi that attacks plants)

Higher Yield

hazardous to user

Hazardous to organisms

Kills beneficial insects

Water Pollution (runoff, loss biodiversity)

5.4 Impacts of Agriculture Practice

Advantages

Disadvantages

Slash and Burn

  • Pollution and CO2 released(burning forest)

  • Desertification(forest doesnt grow back)

  • Land stays arable for only a few seasons

Monoculture

Fertilizer