Agriculture and Environmental Impact Quiz

Agriculture and Greenhouse Gases

• Agriculture is the largest contributor to greenhouse gas emissions.
• This is due to the lack of heavy industry in the agricultural sector.
• Agriculture contributes to greenhouse gases in the form of carbon dioxide, methane, and nitrous oxide.

Water Quality and Eutrophication

• Agricultural practices can negatively impact water quality through a process called eutrophication.
• Run-off from fertilizers containing nitrates and phosphates can cause excessive algae growth, leading to algal blooms.
• Algal blooms block sunlight, inhibiting photosynthesis and causing fish deaths.
• Implementing a 5-meter buffer zone between fertilizer application areas and watercourses can reduce the impact of eutrophication by half.
• Farmers should collect and prevent waste from dairy parlours, cattle yards, and pit washings from entering waterways.

Biodiversity and Agricultural Practices

• Land drainage, pollution, and improper grazing practices are significant threats to biodiversity.
• The shift from haymaking to silage production negatively impacts bird populations.
• Corncrakes, which traditionally nest in tall grasses, suffer habitat loss due to silage making.
• Hedgerows, which provide natural barriers and shelter for livestock, are crucial for biodiversity.
• Promoting hedgerow growth enhances habitat for various species.

Organic Farming and Sustainability

• Organic farming is gaining popularity as consumers become more conscious of food production methods.
• Organic farming relies on biological controls, crop rotation, and eliminates the use of chemical fertilizers and pesticides.
• Organic practices contribute to less pollution and healthier habitats compared to conventional farming.