A peripediment in a desert or semi-desert region is also known as :

In arid and semi-arid geomorphology, a pediment is a gently sloping erosion surface cut into bedrock at the base of a mountain [4]. The term 'peripediment' is often used to describe the lower, distal portion of this piedmont slope where the erosional pediment transitions into a depositional zone . This depositional feature, formed by the merging of multiple alluvial fans, is known as a bajada . While the upper pediment is a result of bedrock erosion, the lower bajada is aggradational, formed by the accumulation of fresh sediments . Other desert landforms include inselbergs, which are isolated residual hills rising abruptly from the plain [3], and zeugens, which are 'ridge and furrow' landscapes formed by wind erosion [2]. Playas are flat, saline lake beds found in the lowest parts of desert basins. Therefore, in the context of piedmont slopes, the peripediment zone is associated with the bajada.

Sources

1. [1] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 7: Arid or Desert Landforms > Landforms of Wind Erosion in Deserts > p. 70
2. [4] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 2: The Earth's Crust > Types of Plain > p. 25
3. [3] FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 6: Landforms and their Evolution > Pediments and Pediplains > p. 60
4. [2] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 7: Arid or Desert Landforms > Sample Objective Ouestions > p. 75