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Zmiany wlasnosci powierzchniowych gleb i mineralow ilastych w procesach zakwaszania i alkalizacji. Badania modelowe

100%

Jozefaciuk G.

Acta Agrophysica

|

1998

|

tom 15

1-115

Acidification has become recently an important environmental problem in many countries. Despite huge amount of papers published in this topic, there exist many knowledge gaps, particularly in the area of surface properties of soils and minerals and their alteration after acidic degradation of soils. Alkalization of soils, being a problem of arid zone countries, has been studied mainly from the point of view of soil amelioration and no results of the detailed studies on surface reaction with alkali are available as well. The aim of the studies performed in the present paper was to observe the changes of the surface properties of soils and clay minerals under acid and alkaline conditions in more details. Particular attention was directed upon surface inhomogeneity. Samples of most abundant clay minerals and soiJs of various mineralógica) composition were acidified and alkalized with extreme concentrations of HCL and NaOH, and studied via water vapor adsorption-desorption, mercury intrusion porosimetry and back-titration experiments. Adsorption, porous and variable surface charge properties were studied by estimations of surface areas, average adsorption energies, adsorption energy distribution functions, micro and mesopores radii and volumes, pore size distributions, fractal dimensions, amount of variable charge and apparent surface dissociation constants distributions. The general changes of the selected materials were registered also, using XRD patterns, solubility, CEC, Mossbauer spectra, magnetic susceptibility, clay and organic matter content measurements. Marked changes of the studied surface characteristics were observed in most of the materials investigated. The general tendencies of these changes for all of the samples were difficult to establish due to the great variability of natural materials, however, a few of the surface characteristics (e.g. surface areas, fractal dimension of micropores, amount of variable charge, average value of apparent surface dissociation constant) changed in a given direction with pH of acidification and/or alkalization. These characteristics may possibly be used for monitoring of environmental processes accompanied with changes of soil reaction.

2

Negative surface charge distribution among constituents of the soil clay fraction as influenced by pH changes

100%

Jozefaciuk G.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1992

|

tom 398

73-77

An examination of negative charge distribution among solid soil phase components and its relations to pH of the equilibrium solution was conducted by model experiments on clays separated from selected acidic soils. It was noted that negative charge blocking by iron and aluminium oxides occurs, with the most pronounced effect in brown and podzol clays. On the basis of measured values of sample charges before and after removal of organic matter the organic matter charges were calculated to have a more linear pH dependence than that seen for natural clays. This effect is attributed to the presence of positive charges in the clays investigated.

3

Porownanie charakterystyk porow glebowych uzyskanych na podstawie pomiarow izoterm desorpcji pary wodnej oraz porozymetrii rteciowej

100%

Jozefaciuk G.

Acta Agrophysica

|

2001

|

tom 53

93-100

4

Variable positive charge of soil clay fractions of acidic soils of a temperate climatic region

100%

Jozefaciuk G.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1992

|

tom 398

67-71

Investigations of the quantity and behaviour of variable positive charges in soils of temperate climatic zone were conducted. The experiments were carried out using sodium forms of clays separated from selected acidic soils of different origin. The clay fractions investigated possess considerable quantities of positive charge connected with mineral components surfaces. It was noted that organic matter presence leads to a considerable decrease of positive charge even when the positive charge observed after organic matter removal was rather high so the organic colloidal particles strongly block the positive charge probably by electrostatic bonds. A linear relationship between iron oxide charge and surface area was obtained.

5

Soil acidity relations with surface charges of soil constituents and their dependence on pH

100%

Jozefaciuk G.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1992

|

tom 398

83-89

The pH influence on the particular forms of soil acidity and the relations between soil neutralization and charge were investigated. Clay fractions of six acidic soils of different origin were examined after conversion into homoionic sodium and aluminium forms. Results indicate that soil exchange acidity should be defined not on the basis of neutral salt extraction but on the basis of surface charge available to acidic ions adsorption. The amount of pH dependent acidity neutralized with pH increase can be quantitatively described by the increase of negative surface charge and the decrease of positive surface charge.

6

Osmotic stress induces severe decrease in cation exchange capacity and surface groups of medium acidity in roots of cereal plants

63%

Lukowska M., Jozefaciuk G.

Acta Physiologiae Plantarum

|

2016

|

tom 38

|

nr 01

7

Changes in micropore system of roots of wheat and triticale seedling under aluminium stress as determined using water vapor adsorption-desorption

63%

Szatanik-Kloc A., Jozefaciuk G.

Acta Physiologiae Plantarum

|

2007

|

tom 29

|

nr 5

Plant root structure including the pore system is severely injured in Al-toxic environments. Experimental water vapor desorption isotherms estimated using vacuum chamber method were used to characterize micropore build-up of roots of wheat (Lanca) and triticale (Debo) 4-day seedlings and its changes after 24 h (8 mg dm⁻³) aluminum stress. The micropore volumes and average pore radii increased after the stress whereas pore fractal dimensions decreased. The above changes were more pronounced for these roots which were not able to grow further after the stress when compared to the control roots, the total micropore volume was almost twice higher and the fractal dimension reached a value of 2 which is characteristic for flat, two-dimensional surface. The observed alterations of pore system indicate damage of root tissue and possible strong binding of aluminum on cell wall surfaces.

8

Wplyw ekstremalnych zmian odczynu na niejednorodnosc energetyczna i geometryczna powierzchni muskowitu.

63%

Jozefaciuk G., Sokolowska Z.

Acta Agrophysica

|

1999

|

tom 23

47-57

Muskowit o dobrze zdefiniowanej strukturze krystalicznej poddano reakcji z kwasem solnym i zasadą sodową o różnych stężeniach. W wyniku reakcji, sieć krystaliczna minerału nie ulegała destrukcji (brak zmian w widmach rentgenowskich), natomiast wyraźnym zmianom ulegały właściwości powierzchni minerału. Zmiany powierzchniowe były inne w warunkach zakwaszania i w warunkach alkalizacji. Słowa kluczowe; adsorpcja, energia adsorpcji, mikroporowatość, muskowit, niejednorodność, stała dysocjacji, wymiar fraktalny jego powierzchni. W obu środowiskach następuje roztwarzanie zanieczyszczeń o charakterze amorficznym. W środowisku kwaśnym - głównie tlenków glinu i żelaza, natomiast w zasadowym - tlenków glinu oraz krzemu.

9

The effect of removal of organic matter, iron oxides and aluminum oxides on the micropore characteristics of the soil clay fraction

63%

Jozefaciuk G., Sokolowska Z.

Polish Journal of Soil Science

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2003

|

tom 36

|

nr 2

111-119

Surface-micropore properties of the clay fractions of several soils before and after removal of a particular clay fraction components: organic matter, iron oxides and aluminum oxides were studied with an application of the water vapor adsorption-desorption method. Changes in micropore radii, volumes and fractal dimensions were observed after the removal of each component.

10

Cyklodekstryny, ich właściwości i zastosowanie w detoksykacji gleb

63%

Jozefaciuk G., Jozefaciuk J.

Acta Agrophysica

|

2002

|

tom 60

11

Kwasowość gleby i jej wpływ na rośliny. Monografia.

63%

Jozefaciuk G., Szatanik-Kloc A.

Acta Agrophysica

|

2002

|

tom 59

12

Effect of pH and aluminum on surface properties of barley roots as determined from water vapor adsorption

63%

Szatanik-Kloc A., Jozefaciuk G.

Acta Physiologiae Plantarum

|

1997

|

tom 19

|

nr 3

Water vapor adsorption isotherms were used for the estimation of surface areas and adsorption energy distribution functions of roots of barley grown at different pH levels and at a toxic Al level (10 mg·dm−3), induced at tillering and shooting stages of plants growth. Values of surface area as well as energy distributions were the same for the roots grown at all pH values studied: 2, 4 and 7 and not dependent on the age of the plants indicating that the protons do not alter the physicochemical build-up of the surface of roots. However, significant changes of the root surface properties under the influence of aluminum: increase of surface area, average adsorption energy and amount of highly energetic adsorption sites together with a decrease of low energetic sites were observed.

13

Early effect of clinoptilolite on yield and quality of oat (Avena sativa L.)

51%

Szatanik-Kloc A., Ambrozewicz-Nita A., Franus W., Jozefaciuk G.

International Agrophysics

|

2019

|

tom 33

|

nr 1

14

Metoda pomiaru pH układów glebowych eliminująca efekt suspensji

51%

Stawinski J., Wierzchos J., Jozefaciuk G.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1986

|

tom 315

15

Changes in variable charge and acidity of rye (Secale cereale L.) roots surface under Zn-stress

51%

Szatanik-Kloc A., Warchulska P., Jozefaciuk G.

Acta Physiologiae Plantarum

|

2009

|

tom 31

|

nr 1

The plants of winter rye variety Rostockie grown in nutrient solution prepared according to Marschner and Romheld (1983) were stressed at shooting stage with different zinc (ZnCl2) concentrations of 0, 20, 200 and 400 mgXdm⁻³ during 10 days at pH = 4.5. The control plants were grown continuously at pH = 7, without Zn²⁺. The roots of all plants were titrated with 0.1 molXdm⁻³ NaOH in 1 molXdm⁻³ NaCl solution with a rate 0.01 ml/min using auto-titrator Titrino 702 (Metrohm). The amount of the base consumed between pH 3 and 10 was recorded with a step of 0.1 pH unit. From the titration data root surface charge was characterized. Roots grown at pH = 4.5 without Zn²⁺ addition, had apparently the same charge properties as the control roots. Under 200 and 400 mgXdm⁻³ of zinc addition, variable charge, Q, and the cation exchange capacity, CEC, of the roots significantly decreased as did the fractions of surface acidic functional groups of strong and medium acidity i.e. the groups having apparent surface dissociation constants, Kapp, between 10⁻³‧⁵ and 10⁻⁵‧⁵. For 20 mgXdm⁻³ zinc stress the fraction of weaker surface groups (surface dissociation constants around 10⁻⁶‧⁵) decreased also. The surface charge density, SCD, of roots decreased under the Zn stress.

16

The effect of pH on the content of K, Al, Fe, Si, Ca and Mg in soil solution

51%

Stawinski J., Pascual C. R., Wierzchos J., Jozefaciuk G.

Polish Journal of Soil Science

|

1987

|

tom 20

|

nr 1

17

Effect of wetting on pore system of soils andminerals as determined by mercury intrusion porosimetry

51%

Jozefaciuk G., Szatanik-Kloc A., Muranyi A.

Polish Journal of Soil Science

|

1998

|

tom 31

|

nr 1

19-24

18

Effect of humic substances on the rate of exchangeable Ca and K ions desorption from montmorillonite

51%

Raychev T., Popandova S., Jozefaciuk G., Hajnos M.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1990

|

tom 388

The rate of exchangeable potassium and calcium desorption from humus containing montmorillonite was investigated by means of electrodialysis. Humic substances were adsorbed on montmorillonite during humification of oak leaves.

19

Influence of surface coverage by humic acids on surface free energy and wettability of quartz and kaolin

51%

Jozefaciuk G., Hajnos M., Sokolowska Z., Renger M.

Polish Journal of Soil Science

|

1995

|

tom 28

|

nr 1

29-35

20

The relation of pH to degree of base saturation of soils

51%

Jozefaciuk G., Stawinski J., Kozak E., Glinski J.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1994

|

tom 413

155-159

The relationships between base saturation (BS) and pH were evaluated basing on three different definitions of degree of base saturation: expressing BS in terms of the total (pH 8.2), ‘effective’ and ‘actual’ cation exchange capacities. The first two approaches lead to differentiation of BS/pH curves for different cationic as well as solid phase compositions (presence of organic matter) of exchange complex. The third approach differentiated soils only in respect to cationic composition.

Ograniczanie wyników

Zmiany wlasnosci powierzchniowych gleb i mineralow ilastych w procesach zakwaszania i alkalizacji. Badania modelowe

Negative surface charge distribution among constituents of the soil clay fraction as influenced by pH changes

Porownanie charakterystyk porow glebowych uzyskanych na podstawie pomiarow izoterm desorpcji pary wodnej oraz porozymetrii rteciowej

Variable positive charge of soil clay fractions of acidic soils of a temperate climatic region

Soil acidity relations with surface charges of soil constituents and their dependence on pH

Osmotic stress induces severe decrease in cation exchange capacity and surface groups of medium acidity in roots of cereal plants

Changes in micropore system of roots of wheat and triticale seedling under aluminium stress as determined using water vapor adsorption-desorption

Wplyw ekstremalnych zmian odczynu na niejednorodnosc energetyczna i geometryczna powierzchni muskowitu.

The effect of removal of organic matter, iron oxides and aluminum oxides on the micropore characteristics of the soil clay fraction

Cyklodekstryny, ich właściwości i zastosowanie w detoksykacji gleb

Kwasowość gleby i jej wpływ na rośliny. Monografia.

Effect of pH and aluminum on surface properties of barley roots as determined from water vapor adsorption

Early effect of clinoptilolite on yield and quality of oat (Avena sativa L.)

Metoda pomiaru pH układów glebowych eliminująca efekt suspensji

Changes in variable charge and acidity of rye (Secale cereale L.) roots surface under Zn-stress

The effect of pH on the content of K, Al, Fe, Si, Ca and Mg in soil solution

Effect of wetting on pore system of soils andminerals as determined by mercury intrusion porosimetry

Effect of humic substances on the rate of exchangeable Ca and K ions desorption from montmorillonite

Influence of surface coverage by humic acids on surface free energy and wettability of quartz and kaolin

The relation of pH to degree of base saturation of soils