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provides the accessibility of cation exchange complex to moving soil solution and large mobile soil solution proportion than in chestnut soil. The over-compacted chestnut soil has a pore structure in which pore surfaces can rapidly become Casaturated. 1.0 a b C rel 0.5 0.0 0 1 2 3 V rel 0 1 2 3 Fig. 7. Chloride (, ), calcium (, ) and sodium (, •) breakthrough curves observed in slow-flow (hollow symbols) and fast-flow (filled symbols) experiments with two southern chernozem soil cores. In summary, the physical heterogeneity governed transport of in ions in this work. This heterogeneity may cause fast transport of adsorbing pollutants in soil profiles, groundwater pollution, and creates a challenge incorporating the physical heterogeneity in models of pollutant transport in soils and sediments. ACKNOWLEDGEMENT This work was partially supported by the Nato Science Programme, Cooperative Science & Technology Sub-Programme, Collaborative Linkage Grant # 979233. REFERENCES 1. 2. Barnett M.O., P.M.Jardine, S.C.Brooks, and H.M.Selim. 2000. Adsorption and transport of Uranium(VI) in subsurface media. Soil Science Society of America Journal, 64: 908-917. Danckwerts P.Y. 1953. Continuous flow systems. Distribution of residence times. Chem. Eng. Sci., 2: 47-55. 92
3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. Dormzhal, H, Usiarov, O. G., Zotov, K. V., Pranagal, Ya. 1990. Changes in soil pore structure caused by agricultural machinery. Pochvovedenie, (12): 25-37 (in Russian). Gaston L.A., R.S.Mansell, and H.M.Selim. 1992. Prediction removal of major soil cations and anions during acid infiltration: model evaluation. Soil Science Society of America Journal, 56: 944-950 Kirda, C., Nielsen D.R., and Biggar J.W. 1973. Simultaneous transport of chloride and water during infiltration. Soil Science Society of America Journal, 37: 339-345 Korsunskaia, L. P., Shein E. V. 2001. Effect of bulk density and flow rate on mass transfer parameters in soils. Moscow University soil science bulletin, (2): 25-29. Korsunskaya, L. P.D. P. Meleshko, and Ya. A. Pachepsky. 1986. Infiltration heterogenity and convective-dispersive mass transfer in soils. Soviet Soil Science: 18: 78-88. Pachepsky, Ya. , D. Benson and W. Rawls. 2000. Simulating Scale-Dependent Solute Transport in Soils with the Fractional Advective-Dispersive Equation. Soil Science Society of America Journal, 64:1234-1243 Pandey R.S., Gupta S. 1983.Analysis of breakthrough curves: effect of mobile and immobile pore volumes. Australian Journal of Soil Research, 22, 23-30 Pfannkuch H.O. 1963. Contribution a l’etude des desplacement fluides miscibles dans un milieu Revie e l’institut francais du petrole, 18: 25-42. Selim H.M., B.Buchter, C.Hinz, and L. Ma. 1992. Modeling the transport and retention of cadmium in soils: multireaction and multicomponent approaches. Soil Science Society of America Journal, 56:1004-1015 SelimH.M., L. Ma, H. Zhu. 1999. Predicting solute transport in soils: second-order two site models. Soil Science Society of America Journal, 63: 885-892. Shein, E.V., Marchenko, K. V. Preferential pathways of water transport in soils. Moscow University Soil Science Bulletin, 2: 13-17. Strock J.S., D.K.Cassel, M.L.Gumpertz. 2001. Spartial variability of water and bromide transport trough variably saturated soil blocks. Soil Science Society of America Journal, 65: 1607-1617. Toride N., F. Leij, M.Th. van Genuchten. The CXTFIT code for estimation transport parameters from laboratory or field tracer experiments. Version 2.0. Research Rep. 137. U.S. Salinity Lab., 1995. Riverside, CA Valles V., L. P. Korsunskaya, Ya. A. Pachepsky, and R. A. Shcherbakov. 1990. Interrelations between static and dynamic characteristics of soil structure. Soviet Soil Science, 23:87 – 92. Van Genuchten M.Th., Wierenga P.J. 1976. Mass transport studies in sorbing porous media. Analytical solutions. Soil Science Society of America Journal, 40: 473-480. 93
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PHYSICS, CHEMISTRY AND BIOGEOCHEMIS
Page 4 and 5:
IN MEMORIAM Dr Ludmila Petrovna Kor
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magnetic (ferrimagnetic) oxides, ma
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educed water activity, would favour
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In this paper AT sorption by surfac
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were obtained with clay content, pH
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In present investigation the quartz
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Hence, the micromorphology suggests
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As the indicators of soil aeration
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Stomatal diffusive resistance of th
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indicators of soil aeration conditi
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REFERENCES 1. 2. 3. 4. 5. 6. 7. 8.
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Table 1. Breakdown of numbers and t
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MORPHOLOGICAL AND PHYSICOCHEMICAL P
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conditions, existing at the first p
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INFLUENCE OF TEMPERATURE ON WATER P
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moisture % 100 90 80 70 60 50 40 so
Page 36 and 37: STATE OF MICROBIAL COMMUNITIES IN M
Page 38 and 39: million cells/g soil 25 20 15 10 5
Page 40 and 41: THE INFLUENCE OF COMPOSITION AND PR
Page 42 and 43: days grew faster than on substrate
Page 44 and 45: SOIL SALINITY AND CLIMATE CHANGES I
Page 46 and 47: POROUS STRUCTURE OF NATURAL BODIES
Page 48 and 49: These nonuniform classification sys
Page 50 and 51: Mercury intrusion data are plotted
Page 52 and 53: METHOD AND MATERIALS The shear stre
Page 54 and 55: wheat flour NaCl salt fine milk Fig
Page 56 and 57: The shear experiments revealed two
Page 58 and 59: Variable charge of mineral surfaces
Page 60 and 61: 3. Huffaker RC and Wallace A 1958 P
Page 62 and 63: Q V (pH)/N t = α(pH) = n ∑ i= 1
Page 64 and 65: REFERENCES 1. De Wit, J.C.M, Van Ri
Page 66 and 67: BM - biomass; NM - necromass; MM -
Page 68 and 69: thousand times at the absence of co
Page 70 and 71: . m 131.5 131.0 I Height above sea
Page 72 and 73: SEASONAL VARIABILITY OF SOIL WATER
Page 74 and 75: The mean difference (MD) and the ro
Page 76 and 77: Acknowledgement This paper presents
Page 78 and 79: 1992; Selim 1999). The relative imp
Page 80 and 81: 1.0 C rel 0.5 0.0 v=0.7 D=3.28 v=0.
Page 82 and 83: 1.0 a b C rel 0.5 0.0 0 1 2 3 0 1 2
Page 84 and 85: Comparison of before- and after-pul
Page 88 and 89: MODEL RESEARCH ON FORMATION OF SYNT
Page 90 and 91: The analysis of the specific surfac
Page 92 and 93: PHOSPHATE-INDUCED CHANGES IN THE SP
Page 94 and 95: According to the data of Table 1, t
Page 96 and 97: MINERAL-ORGANIC COMPOUND OF SOILS:
Page 98 and 99: RESULTS AND DISCUSSION An analysis
Page 100 and 101: INTRODUCTION CHEMICAL DEGRADATION O
Page 102 and 103: of organic particles and their elec
Page 104 and 105: HNO 3 -extractable form is very clo
Page 106 and 107: Results demonstrated that Pb and Cd
Page 108 and 109: tion was measured using the Tjurina
Page 110 and 111: OUTPUT FLUXES OF LEAD IN FOREST ECO
Page 112 and 113: Regional data on Pb concentrations
Page 114 and 115: DEVICE FOR EVALUATION OF THE RAPE P
Page 116 and 117: SPECTROSCOPIC COMPARISON OF HUMIC A
Page 118 and 119: ehavior of sequentially extracted H
Page 120 and 121: MODERN MONITORING SYSTEMS FOR THE M
Page 122 and 123: The control of the measurement syst
Page 124 and 125: ASORPTION AND SURFACE AREA OF SOILS
Page 126 and 127: Nm xCBET N = ( 1− x BET − )[ 1+
Page 128 and 129: According to this, when x/N (1-x) i
Page 130 and 131: POTENTIAL OF AZOLLA CAROLINIANA TO
Page 132 and 133: The decrease of Pb(II) and of Cd(II
Page 134 and 135: 12. 13. 14. 15. 16. Piechalak, A.,
Page 136 and 137:
Kloc, 2001]. Nitrogen adsorption is
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This is worth noting that the lower
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N ( h) 1 2 γ ( h) = [ ( ) ( )] ( )
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Exemplary spatial distributions (sa
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This is worth noting that significa
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adsorbed chemicals to microorganism
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were detected in the untreated soil
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0.4 1000 Moisture [Vol.] 0.3 0.2 0.
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NITROUS OXIDE EMISSION FROM SOILS W
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N2O-N [mg kg -1 ] 100 80 60 40 20 0
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LITERATURE 1. 2. 3. 4. 5. 6. 7. 8.
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where v(t) - CO 2 production rate;
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carbon was involved mainly into mic
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Demkin Vitaliiy DrSc Dmitrakov Leon
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Priputina Irina PhD Rudko Tadeusz P
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