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The Movement and Storage of Water in North Carolina Soils and the Role of the Soil in Determining Water Quality

机译:北卡罗莱纳州土壤水分运移与储存及土壤在确定水质中的作用

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Three related but separate phases of work are reported. (1) Study of the physical properties of the soils of North Carolina. Sixty-nine soil series representing approximately two-thirds of the total land area of the State were sampled, and the following determinations made: Depth of the A and B horizons, bulk density, total porosity, hydraulic conductivity, and the available, the unavailable, and the total water-holding capacities of the A and B horizons. The data should be valuable in planning water control (irrigation and drainage) in erosion control, in various phases of engineering, and in urban development (septic tanks and drainage). (2)Herbicide losses. Suspensions of kaolinite and montmorillonite were treated with two different rates of six herbicides and the amount of herbicide removed in increasing pressure increments determined, using the pressure membrane apparatus. (3)Cation and anion losses from clay minerals were studied.

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