How do the Dry Pampa and Humid Pampa differ?

The Pampas of Argentina are divided into two distinct zones based on their environmental characteristics and economic utility:

• Humid Pampa: Located in the east, this zone includes parts of Buenos Aires province. It is a temperate, well-watered region that serves as the nation's economic heart and most densely populated area. Rainfall here is sufficient for agriculture, ranging from 39 inches in the east to about 20 inches near the Andean foothills.12
• Dry Pampa: Situated in the west, this zone encompasses much of La Pampa province. It is largely a barren landscape characterized by sandy deserts, brackish streams, and significant saline areas.1

While the Humid Pampa is defined by its agricultural productivity and temperate climate, the Dry Pampa is marked by its arid conditions, which limit its development compared to the fertile east.13