pedo-, ped- +

Regarding the top of the ground; level; flat: Jack worked on the garden to make it epipedos and easy to cultivate his vegetables.

A unit of soil structure formed by natural processes: Examples of peds are an aggregate, a block, a crumb, a prism, and a granule that are all formed by a natural process, as distinguished from a clod.

In agronomy, a leached soil that develops in humid regions and is characterized by an accumulation or concentration of aluminum and iron oxides: Pedalfer is an acid soil type found in damp areas rich in aluminium and iron compounds, but low in carbonates.

The physical nature of a soil as expressed by the features of its constituent peds: In her geology class, the students were asked to analyse the earth samples for their pedality.

In geology, a broad, gently sloping, low-relief erosion surface: A pediment is composed primarily of bare rock that develops in an arid or semiarid region at the base of a receding mountain slope.

Concerning life forms that thrive in uplands or higher soil areas: Pediophilous birds, like the ravens, peregrine falcons, and red grouse, prefer habitats in a higher region, in contrast to a low-lying land, like a plain.

A plant of an upland community: The woodland grasses and shrubs land comprise pediophytes that provide important ecosystems and help to save soil sequester carbon.

In geology, a broad, thinly alluviated, rock-cut erosion surface: A pediplain is created in a desert region by the merging of two or more adjacent pediments.

In geology, the processes involved in the formation and development of a pediplain or pediplains: Amy read about pediplanation and how they were created in the piedmont area of a desert which could have been covered by a thin layer of alluvial or even quite bare.

In geology, an unleached soil that develops in arid or semiarid regions and that is characterized by an accumulation or concentration of carbonates, usually calcium carbonate: Pedocals are common in dry or somewhat dry areas where the rate of evaporation is greater than the rate of leaching.

In geology, the process of the composition of earth: Pedogenesis is the method, processes, and factors responsible for the origin and development of a true soil from unconsolidated parent material; soil formation.

In geology, a branch of soil science that involves the study of the origin, formation, and development of soil: In the department of geology, Mrs. Brown was an expert in pedogenics which dealt with the origin and development of soil or earth.

A geochemical prospecting survey in which the materials sampled are soil and till: Mr. Williams was involved in a pedogeochemical survey in which he and others explored and collected examples of clay, composed of glacial debris made of sand, gravel, pebbles, cobbles, and sometimes boulders, and soil.

In geology, a study involving geographic soil distribution: In class, Judy was surprised to learn that pedogeography referred to the diffusion or dispersion of earth all over the world.

An aspect of soil science concerned with the systematic description of soils: A pedography is a graphical record describing or showing the various qualities and factors of earth.