Unit 5 explores the fundamental patterns and processes of agriculture and how they have evolved over time. It details historical milestones like the Second Agricultural Revolution, highlighting inventions such as the seed drill and the development of agrichemicals that increased productivity. Unit 5 also examines various land-survey methods, including metes and bounds and the township and range system, which shaped rural settlement layouts. Beyond production, this unit address the globalization of the food system, explaining how agribusinesses and international trade agreements influence local economies. There is a significant focus on the environmental consequences of modern farming, such as nutrient pollution and the depletion of wetlands. Finally, Unit 5 considers contemporary shifts like genetically modified organisms, organic farming, and the rise of biofuel production.
Unit Guiding Questions
How did the three agricultural revolutions change global food production?
Explain how climate and topography determine different types of farming.
How do modern agribusinesses and commodity chains impact small farmers?