AGR 2320 Lecture Notes - Lecture 18: Soil Horizon, Hydraulic Conductivity, Sphagnum
2 Nov 2017
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Where does what exist on earth- ocean (salt water) You can see that it is a cycle. Guelph gets: 863 mm of precipitation a year, we have more precipitation that evaporation. Factors that impact surface water runoff: how quickly water filtrates the soil, steep slopes, how much water is there already, temperature (winter melt in the spring), and heavy intensity rainfall. Guelph has e(cid:374)ough surplus (cid:449)ater; that salts (cid:449)o(cid:374)"t (cid:271)uild up i(cid:374) the surfa(cid:272)e. Boiling and melting points occur in all three states. What is the charge of water: zero but it is a dipole- dipole, polar in nature, positive and negative side. Polar nature allows to adhere to other surfaces, coheres to other water molecules. Shrinking and swelling, clays have a huge amount of surface area which allow for many contact point. Sa= how much weight of water has to be pulled up with it. Smaller the pore sizes the more water is pulled up.
