Crucial Agriculture info pt 4 Flashcards
Q: What is soil erosion?
A: The wearing away of topsoil, the most nutrient-rich layer, due to wind and water.
Q: What are some causes of soil erosion?
Mining, Overgrazing and Poor farming practices
Q: How can soil erosion be prevented?
A: - Mulching: Protects soil from rain and wind.
Q: What are riparian buffer zones?
A: Areas of vegetation along waterways that help filter pollutants and slow water movement.
Q: What is a problem caused by removing riparian vegetation?
A: Increased water runoff and pollution entering waterways.
Q: How can irrigation be managed efficiently?
Assessing soil water capacity
Q: What is the nitrogen cycle?
A: The process by which nitrogen is converted into various chemical forms in the environment.
Q: What are the key stages of the nitrogen cycle?
Fixation, Ammonification, Nitrification and Denitrification
Q: How do human activities impact the nitrogen cycle?
A: Use of artificial fertilizers and fossil fuel combustion disrupt natural nitrogen levels.
Q: What is firestick farming?
A: A traditional Aboriginal practice of using controlled burns to manage vegetation.
