PLSC204 Lecture Notes - Lecture 11: Bulk Density, Permanent Wilting Point, List Of Lakes By Volume
20 Jan 2019
School
Department
Course
Professor
Document Summary
Effects on field capacity and permanent wilting percentage. Higher field capacity, permanent wilting percentage, and water availability with more organic matter % Mass water content = m = mass of water / mass of oven dried soil. Mass water percentage = p m = m (100) Volumetric water content = v = volume of water / volume of soil v = (mass water content) (soil bulk density) = Volume water percentage = pv = v (100) Higher available water content leads to being able to support more trees. [ q/ (a)(t) ] = [ (k)( )/l ] = change in water potential in cm. L = length of the column in cm. Soil type, esp texture, has a large effect on k and therefore q. Water in typical beach sand moves approx 36 cm/h. Water in sandy soil moves approx 18 cm/h. Water in typical soil moves approx 1. 8cm/h.
