BIO 468 Lecture Notes - Lecture 3: Parent Material, Loam, Silt
Document Summary
He mentioned that spider predation and how there are two different personalities that a single species exhibits. (no relevance to actual lecture material). Soil is at the heart of terrestrial restoration: Contamination is a big problem in restoration. We will look at soil in lab on january 20th, and we have to know that soil is not dirt. Unconsolidated material at the surface of the earth, composed of mineral particles and decaying organic matter, in which plants root. (his definition) The naturally occurring unconsolidated mineral or organic material, at least 10 cm thick that occurs at the earths surface and is capable of supporting life. (canadian system of soil class) These two definitions are very similar and either one is good to remember. Soil is composed of four things: minerals, air, water, organic matter. *soil is arranged in layers that are arranged in order of increasing complexity.
