Why was settled agriculture difficult across much of the Arabian Peninsula?

Settled agriculture across much of the Arabian Peninsula has historically been difficult primarily due to the region's harsh arid climate and challenging environmental conditions.31

The primary obstacles include:

• Water Scarcity: The peninsula suffers from very low annual rainfall and a lack of constant water supplies, which are insufficient to support consistent agricultural production. Even in the relatively more fertile southwest, water availability is often too irregular to reliably sustain large-scale farming or power generation.23
• Soil Quality: Much of the region is characterized by poorly developed soils that lack sufficient organic matter, often consisting of wind-eroded sand or stony desert. In many areas, the soil is also prone to salination, which further hinders plant cultivation.45
• Environmental Degradation: Human activities, including overgrazing and the removal of vegetation for fuel (such as charcoal production), have historically depleted the land, contributing to the expansion of barren tracts and desertification.67

While sophisticated irrigation techniques have been used since ancient times—most notably in Yemen—agriculture has remained a constant struggle against these environmental realities.31