Soil and Environmental Analysis: Physical Methods - Chapter 14 potx
Soil and Environmental Analysis: Physical Methods - Chapter 14 potx
... theinteractions of soil temperature regime, and soil- based environmental processes,such as soil atmosphere gas exchange, solute transport, and the fate of soil and groundwater contaminants.ACKNOWLEDGMENTSThe ... may be handheld, are avail-able with both narrow-angle (e.g., 3Њ) and wide-angle (e.g., 60Њ) fields of view.Air- or satellite-borne scanning IRTs are used in remote sensing; they re-cord spatial ... sampling (i.e., screening and grounding to reduce noise and interference, and sensor-recorder interfacing) can be found in Fritschen and Gay(1979), Weichert (1983), and Woodward and Sheehy (1983).1....
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Soil and Environmental Analysis: Physical Methods - Chapter 2 doc
... field. Plant Soil 97 :145 149 .McGowan, M. 1974. Depths of water extraction by roots: Applications to soil- water bal-ance studies. In: Isotopes and Radiation Techniques in Soil Physics and IrrigationStudies. ... electricalresistance units and gypsum materials. Soil Sci. 86: 140 147 .Phene, C. J., and D. W. Beale. 1976. High-frequency irrigation for water nutrient manage-ment in humid regions. Soil Sci. Soc. Am. ... –904.Campbell, G. S., and W. H. Gardner. 1971. Psychrometric measurement of soil water po-tential: Temperature and bulk density effects. Soil Sci. Soc. Am. Proc. 35:8–12.Campbell, G. S., and G. W. Gee....
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Soil and Environmental Analysis: Physical Methods - Chapter doc
... B. W. 1980. Soil Classification for England and Wales. Soil Survey Tech. Monogr.No. 14. Harpenden, U.K.Ball, B. C., and Hunter, R. 1980. Improvements in the Routine Determination of Soil Pore ... images of soil porosity for analysing soil compaction aroundroots. Soil Sci. Soc. Am. J. 60: 895 –901.Bruce, R. R., and Luxmoore, R. J. 1986. Water retention: Field methods. In: Methods of Soil ... capacity fromsieved sample data. Soil Sci. 101:104 –107.Zur, B. 1966. Osmotic control of the matric soil- water potential: I. Soil- water system. Soil Sci. 102:394 –398. 140 Townend et al.Copyright...
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Soil and Environmental Analysis: Physical Methods - Chapter 4 pot
... Soils 143 Table 1 Hydraulic Conductivity Values of Saturated Soils Soil Hydraulic conductivity(mm dϪ1)Fine-textured soils Ͻ 10Soils with well-defined structure 10 –1000Coarse-textured soils ... Bureau of Standards.Amoozegar, A., and Warrick, A. W. 1986. Hydraulic conductivity of saturated soils: field methods. In: Methods of Soil Analysis. Part 1. Physical and Mineralogical Methods (A. ... 15.1 16.6 19.1 23.1 ϱ12 14. 0 13.7 13.2 12.3 11.2 10.4 9.4 14. 0 14. 4 15.2 16.7 19.2 23.2 ϱ8 14. 3 14. 1 13.6 12.7 11.5 10.7 9.6 14. 2 14. 8 15.5 17.0 19.4 23.3 ϱ4 15.0 14. 9 14. 5 13.7 12.6 11.7 10.5...
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Soil and Environmental Analysis: Physical Methods - Chapter 5 pot
... Equipment5. Standard for soil laboratory4. General-purpose, off-the-shelf3. Easily made in average machine shop2. Special-purpose, off-the-shelf1. Special-purpose, custom-madeI. Operator ... seal the soil col-umn for unsaturated measurements) and protects the soil column in the field and during transport to a laboratory. Somewhat more disturbed soil columns from en-tire soil profiles ... samples.Ahuja and El-Swaify (1976) determined the soil hydraulic properties bymeasuring one-step cumulative inflow or outflow from short soil cores throughhigh-resistance plates at one end and measuring...
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Soil and Environmental Analysis: Physical Methods - Chapter 6 pptx
... heavy clay soils: I. J. Agr. Sci. 26: 114 –127.Childs, E. C. 1967. Soil moisture theory. Adv. Hydrosci. 4 : 73 –117.Childs, E. C., and Collis-George, N. 1948. Soil geometry and soil- water equilibria, ... USDA-SEA-AR, ARM-W-10/July 1979, pp. 85–90.Amerman, C. R., et al. 1979. Proceedings of the Rainfall Simulator Workshop, Tucson,Arizona, March 7–9, 1979. Sidney, Montana: USDA-SEA-AR, ARM-W-10/July1979, ... Ks and S (Eq. 15), and by measuring us and un, Eqs. 26 and 28 give us functional descriptions of the soil s D(u) and K(h).These capillary and gravity properties allow us to infer some pore-geo-metric...
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Soil and Environmental Analysis: Physical Methods - Chapter 7 ppsx
... 1981a: NF-X-1 1-6 83; 1981b: NF-X-1 1-6 30; 1982:NF-X-1 1-6 42; 1983a: NF-X-1 1-6 85; 1983b: NF-X-1 1-6 93; 1983c: NF-X-3 1-1 07;1984: NF-X-1 1-6 82; 1990: NF-X-1 1-6 61; 1992: NF-X-1 1-6 67; 1997a: NF-X-1 1- 671; ... This chapter touches on some of the techniques available. We aim to discuss the principles,origins, and limitations of some standard methods and to point to newer methods that may provide more and/ or ... in soils. Barak et al. (1996) went further, and concludedthat fractal theory offers no useful description of sand particles in soils and hencedoubted the applicability of these methods to soils...
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Soil and Environmental Analysis: Physical Methods - Chapter 8 pot
... undisturbed soil cores bygamma-ray attenuation. New Zealand Soil Bureau, Report 67.Sharratt, B. S. 1996. Tillage and straw management for modifying physical- properties of asub-arctic soil. Soil Till. ... direct and indirect methods are detailed. Direct methods discussed in-clude the core sampling, rubber balloon, sand replacement, and clod methods. Indirect methods include both the backscatter and ... coastal lowlands of south-eastQueensland. Aust. J. Soil Res. 33: 11–18.Coppola, M., and P. Reiniger. 1974. Influence of the chemical composition on the gamma-ray attenuation by soils. Soil Sci....
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Soil and Environmental Analysis: Physical Methods - Chapter 9 doc
... strength and liquidity index and also be-tween compression index and plasticity index (Wroth and Wood, 1978).C. Other Methods Several workers have devised methods of measuring liquid and plastic ... carboniferous clay soils in north cen-tral Ireland and their significance. Ir. J. Agric. Res. 15:129 –135.Nagaraj, T. S., and M. S. Jayadeva. 1981. Re-examination of one-point methods of liquidlimit ... topsoils using a drop-cone pene-trometer. J. Soil Sci. 26 :234–240.Campbell, D. J. 1976a. The occurrence and prediction of clods in potato ridges in relationto soil physical properties. J. Soil...
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Soil and Environmental Analysis: Physical Methods - Chapter 10 docx
... between soil strength, bulk density and soil water pressure head of sandy top-layers of grass sportsfields. Z. Vegetationstech-nik 1:53 –58.Voorhees, W. B., D. A. Farrell, and W. E. Larson. 1975. Soil ... –297.Anderson, G., J. D. Pidgeon, H. B. Spencer, and R. Parks. 1980. A new hand-held recordingpenetrometer for soil studies. J. Soil Sci. 31 : 279–296.Ball, B. C., and M. F. O’Sullivan. 1982. Soil ... diameter and penetra-tion rate.Care must be taken, when sampling soils for needle-penetrometer measure-ments, that the soil is compressed as little as possible during coring. Soil is com-pacted...
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