AP human Geography important people/theories

the supply of food cannot keep up with the growth of the human population, inevitably resulting in disease, famine, war, and calamity. A noted statistician and proponent of political economy

• Thomas Robert Malthus

• Friedrich Ratzel

• Carl Sauer

• Waldo Tobler

Organic Theory expressed that a nation-state is similar to an organism in that both grow and expand to survive and prosper

• Ester Boserup

• Carl Sauer

• Friedrich Ratzel

• Alfred Weber

all regions of the Earth were impacted by human behavior and had been altered by human interaction, he also believed that cultural landscapes were the most important branch of geographic inquiry.

• Carl Sauer

• Johann Heinrich von Thuen

• Alfred Weber

• Thomas Robert Malthus

states that population growth is the catalyst for agricultural innovation.

• Ester Boserup

• Thomas Robert Malthus

• Waldo Tobler

• Carl Sauer

explains the relationship between the cost of transportation of crops and the cost of land.

• Johann Heinrich von Thunen

• Alfred Weber

• Norman Borlaug

• Waldo Tobler

“everything is related to everything else, but near things are more related than distant things.” 

• Waldo Tobler

• Immanuel Wallerstein

• Alfred Weber

• Carl Sauer

division of the world into the core, the periphery, and the semi-periphery as a means

• Immanuel Wallerstein

• Carl Sauer

• Waldo Tobler

• Alfred Weber

Father of the Green Revolution". He led several initiatives that got this Revolution up and running as well as received the Nobel Peace Prize for his efforts. He is credited with saving billions from starvation as well as modernizing agriculture techniques and technology.(devep. GMOS)

• Norman Borlaug

• Alfred Weber

• Waldo Tober

• Carl Sauer

The theory of the location of industries published in 1909 was most influential work. This work laid massive emphasis on the location triangle. the perfect location for a new industry. three key factors influence industrial location. These factors include; agglomeration economies, transport costs, and labor costs. Hence location is deemed to imply an optimal consideration of these factors.

• Ester Boserup

• Carl Sauer

• Alfred Weber

• Thomas Robert Malthus