ENVB 210- Final Exam Guide - Comprehensive Notes for the exam ( 25 pages long!)
29 Mar 2018
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Summary notes - final exam - envb 210. One point: livestock wastes, mill tailings in mining areas, land spreading of sludge, runoff of salt from roads and highways. Non-point (distributed sources: fertilizers on agricultural land, pesticides on agricultural land and forests, contaminants in rain, snow, and dry atmospheric fallout. Uncon ned//shallow aquifer: separated by impermeable layer (low hydraulic conductivity) Salt water intrusion into coastal wells: sea water depth: overlying column of fresh groundwater = column of heavier sea water. Problems in the prairies: said to become drier - need more irrigation. To estimate the salinity in western canada is dif cult because salts move with precipitation up and down the soil pro le. If water is (~2m) to the soil surface, capillary action and evaporation draw up the saline water. Week 7 - soil colloids: clays and humus. Soil development: (primary igneous rock minerals => secondary new minerals)e.
