GEO 131 Lecture Notes - Lecture 15: Venus Flytrap, Lythrum Salicaria, Metamorphic Rock
12 Jan 2017
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Document Summary
N isn"t limited in fresh water because n in soil dissolves in water and flow into rivers. Where there is standing water on the ground for at least part of the year. Soils are either full of water or under water. Plants are adapted to growing in v wet conditions. Are located along edges of rivers, streams, lakes or ponds. Flat low lying land able to collect water. Plants adapt if they don"t get nutrients from soils (ex. Roots stabilize stream and lake shores - reducing erosion. Absorb water and slowly release it, maintaining stream base flow in dry times. They"re open and flat so flowing water can spread out. Plants help to filter (chemical and mechanical) suspended solids out of water. Sediment in river makes it difficult for fish eggs to breathe. Plants absorb chemicals and when they die, they settle to bottom. Bc low o2, they don"t decompose much and the chemical is stored in the soil.
