"场地地貌" can be translated into English as "site topography" or "site geomorphology".
"Site topography" is more commonly used and refers to the natural or artificial features of the land surface at a specific site, including its shape, elevation, and slopes.
"Site geomorphology" is a more technical term that specifically refers to the study of the landforms and the processes that shape them at a particular site.
In most general contexts, especially in engineering, architecture, or urban planning, "site topography" would be the more appropriate choice.