OBJECTIVE FORESTRY

Detailed explanation-1: -Alluvium is a kind of parent material which was deposited by water (washed into place). Rocks which have been bounced along the bottoms of waterways for miles become rounded, so rounded rocks in a soil profile are good indicators of an alluvial soil. As a rule, faster-moving water can carry larger particles.

Detailed explanation-2: -Alluvial (or fluvial) parent materials were deposited by moving water bodies such as rivers and streams. The texture of the deposit depends on the energy of the water body. Fast-moving water deposits only coarse material such as rocks and gravel.

Detailed explanation-3: -Loess. The term loess (meaning “crumbly” in German) is used to describe silt textured eolian material. Loess can be interpreted as an accumulation of wind-blown dust, usually of glacial origin.

Detailed explanation-4: -Parent material is the starting point for most soil development. The parent material may be mineral rock and/or organic matter. When parent rock material is exposed to the atmosphere or when organic matter and/or minerals are deposited on the earth’s surface, soil formation begins.