Copy of Agriculture PowerPoint

Unit Overview

Unit 5: Agriculture and Rural Land Use

DO NOW (1/9)

  • Trivia worksheet activity in pairs. No external research allowed.

DO NOW (01/11/2024)

  • Identify a frequently eaten meal and its ingredients. Describe the source and production details of each ingredient in detail.

Objectives & Essential Questions

Geographers Will:

  • Identify major centers for domestication of plants and animals during the Neolithic Revolution.Essential Question:

  • How did the evolution of agriculture change the world?

Invention of Agriculture

First Agricultural Revolution (Neolithic Agricultural Revolution):

  • Occurred around 10,000 BCE.

  • Marked by the domestication of various plants and animals, transitioning from nomadic lifestyles to settled agricultural societies.

  • Focused primarily on subsistence farming, where communities produced enough food for their own needs rather than for trade.

  • Presently, only 0.005% of the population are hunters and gatherers, living on the world's periphery.

Food Production Types

Modern Food Production:

  • Hunter-Gatherers

  • Pastoralism: raising livestock

  • Cropland: cultivation of various crops, impacted by regional climates and geographic conditions.

Agricultural Revolutions

Second Agricultural Revolution (1700s):

  • Industrial Revolution led to increased food supplies through mechanization, which allowed for more efficient farming practices, the use of fertilizers, and selective breeding of crops and livestock.

Third Agricultural Revolution (Green Revolution):

  • Began in the 1960s, characterized by the introduction of high-yielding varieties of seeds and chemical fertilizers, increasing productivity significantly.

  • Marked by agribusiness control over the food supply chain, isolating small farmers from access to technology and markets.

Domestication Centers

  • Recognize the five major centers of the First Agricultural Revolution:

    1. Southwest Asia

    2. East Asia

    3. South Asia

    4. Africa

    5. The Americas

Key Crops and Animals

Major crops and animals domesticated include:

  • Crops:

    • Cassava

    • Squash

    • Pepper

    • Barley

    • Emmer Wheat

    • Maize

  • Animals:

    • Cattle

    • Pigs

    • Horses

    • Goats

    • Llamas

Major Hearths of Crop Agriculture

Time Period and Location:

  • 10,000-12,000 Years Ago: Southwest Asia (Barley, Wheat, Lentils)

  • 10,000 Years Ago: Southeast Asia (Mango, Rice)

  • 7,000 Years Ago: Sub-Saharan Africa (Yams, Sorghum)

Diffusion of Agricultural Practices

  • The First Agricultural Revolution led to significant outcomes:

    • The rise of civilizations and increased trade due to surplus food production.

    • Development of new occupations and technologies that supported urbanization and trading economies.

Trade Examples

  • Examples of trade routes influencing agricultural practices:

    • Roman Empire: Trade routes across England, Africa, and Southwest Asia.

    • Silk Roads: Connecting trade routes between Rome and China, facilitating the exchange of not just goods, but also agricultural techniques and seeds.

The Columbian Exchange

  • Movement of plants and animals between Afro-Eurasia and the Americas, profoundly impacting global agriculture:

    • Coffee and bananas were brought from eastern Africa to the Americas.

    • Potatoes and maize were introduced from the Americas to Europe, transforming diets globally.

Physical Geography and Agriculture

  • Physical features significantly impact farming:

    • Access to water, climate conditions, soil types, and landforms all influence agricultural practices.

  • Key techniques include irrigation, which helps grow crops in arid regions, and terrace farming, which allows for cultivation on uneven land.

Access to Water

  • Water is essential for all crops and animals.

  • Regions with reliable water sources tend to produce a higher diversity of crops.

Climate Differences

  • Latitude and geography affect crop viability; for instance, tropical climates can support different kinds of crops compared to temperate zones.

Human Alterations to Landscape

Terracing:

  • Steps built along hillsides to ease farming and reduce soil erosion, allowing for better water retention and maximizing arable land.

Irrigation Management

  • Irrigation systems can increase agricultural yields significantly but can also lead to environmental issues, such as soil salinization and depletion of local water sources.

Deforestation

  • Removal of forests for agriculture can lead to increased atmospheric CO2 levels and loss of biodiversity, impacting climate change and ecosystems.

Slash and Burn Agriculture

  • Land is cleared and burned for farming; this method can lead to high short-term yields but often results in long-term depletion of soil quality.

Trends in Agriculture

  • There is a noticeable shift from subsistence farming to commercial farming, impacting food distribution and agricultural practices globally.

Intensive vs. Extensive Agriculture

  • Intensive: Involves high input and small land area; common in More Developed Countries (MDCs) for maximizing productivity.

  • Extensive: Characterized by low input over larger land areas; typically found in Less Developed Countries (LDCs) where land is more plentiful than capital.

Agricultural Regions Differences

  • Understanding key differences between MDC and LDC agriculture sheds light on global food systems and inequities across regions.

Whittlesey's Agricultural Regions

  • Identified 11 main agricultural regions based on climate, showcasing the diversity of farming practices globally.

Essential Question on Agricultural Advances

  • Analyze the environmental impacts and technological advancements stemming from the Agricultural Revolutions, focusing on both positive and negative outcomes.

Second Agricultural Revolution

  • Advances in mechanization, irrigation, and better farming practices enhanced agricultural output, contributing to urbanization trends as fewer people were required for farming.

Third Agricultural Revolution - Green Revolution

  • Increased agricultural productivity through techniques like hybrid crops and genetically modified organisms (GMOs) has led to both substantial gains in food supplies and environmental concerns.

Green Revolution Pros and Cons

  • Pros:

    • Increased yields, reduced hunger levels globally.

  • Cons:

    • Environmental damage, gender disparities in agricultural roles and income distribution.

Objective and Essential Question

  • Identify agricultural production regions aligned with bioclimatic zones and evaluate their sustainability practices.

Climate Influence on Agriculture

  • Advances in technology can sometimes help overcome climate limitations, allowing for expanded agricultural production in less-than-ideal conditions.

Dairy Farming Evolution

  • Transition to large corporate dairy operations influenced by refrigeration technologies, changing traditional dairy farming practices and production capacities.

Mediterranean Agriculture

  • Characterized by hot-dry summers and particular crops such as figs, olives, and grapes, which thrive under these conditions.

Land-Use Patterns

  • Influenced by a combination of cultural and environmental factors, leading to diverse agricultural practices.

Rural Settlements

Types:

  • Clustered, Dispersed, Linear Settlements, each having unique implications for community dynamics and agricultural efficiency.

Survey Methods

  • Long Lot: Narrow lots that provide equal access to resources such as waterways.

  • Metes and Bounds: Property boundaries are defined by physical features, enhancing clarity in land management.

Bid Rent Theory

  • Land prices vary based on distance from the center of a market, influencing agricultural land use across urban and rural settings.

von Thünen’s Model

  • Developed to explain agricultural land use patterns based on distance from markets, indicating how agricultural practices change as distance from urban centers increases.

Environmental Effects of Agriculture

  • Key concerns include overgrazing, desertification, pollution, and salinization caused by agricultural processes.

Societal Effects of Agriculture

  • The shift towards global consumption and its implications on gender roles in agriculture as modernization and technology alter traditional practices.