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Artículos de revistas sobre el tema "Gypsiferous Soil"

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Publicado: 6 de septiembre de 2023

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1

Arslan, Awadis. "A computer program to express the properties of gypsiferous soils". Canadian Journal of Soil Science 75, n.º 4 (1 de noviembre de 1995): 459–62. http://dx.doi.org/10.4141/cjss95-066.

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Data from gypsiferous soils on an oven-dry basis cannot be compared with similar data from nongypsiferous soils because gypsum loses most of its crystal water on drying at 105 °C. A short computer program that uses the successive-approximation technique was developed to convert percent gypsum values determined on an air-dry basis or on an oven-dry basis into percent gypsum values determined on an oven-dry basis plus crystal water of gypsum. Percent gypsum and percent moisture of the analyzed soil samples are the required input data. The program calculates the corrected percent moisture and the percent gypsum on an oven-dry basis plus crystal water of the gypsum. The output of the program allows a comparison of gypsum contents, and any other properties, of gypsiferous soils after obtaining the correct moisture contents of the gypsiferous soils and makes these properties comparable with those of nongypsiferous soils. Key words: Percent gypsum, computer program, water content, gypsiferous soils
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2

Abdullah, Waleed R. y Sali Nabeel Jabrou. "Improving Ionic Exchange Process of Potassium in Poor Soils by Bentonite". IOP Conference Series: Earth and Environmental Science 961, n.º 1 (1 de enero de 2022): 012098. http://dx.doi.org/10.1088/1755-1315/961/1/012098.

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Abstract The current study was carried out to improve ionic exchange for potassium in sandy and gypsiferous soils to obtain an increase in absorption of potassium ions in NPK fertilizers, the improving process includes two stages; The first is adding NPK fertilizer with concentrations (0.020%, 0.040%, and 0.070%) by weight for two samples, the exchange potassium concentration was measured and notice the increasing from 124 ppm to 140 ppm in sandy soil and from156 ppm to 180 ppm in gypsiferous soil when using the highest concentration (0.070%), the second stage included adding grinded bentonite ore (10%, 20%,30%) by weight to the two samples after treated with NPK fertilizer in same concentrations above, potassium exchange increased to 340 ppm in sandy soil and to 450 ppm in gypsiferous soil by using NPK fertilizer and bentonite ore concentrate (0.070% & 30%) respectively.
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3

Salari, Kolsum Rahman, Mohammad Amir Delavar, Mehrdad Esfandiari y Ebrahim Pazira. "Morphological, physical, and clay mineralogy of calcareous and gypsiferous soils in North of Lorestan, Iran". Canadian Journal of Soil Science 99, n.º 4 (1 de diciembre de 2019): 485–94. http://dx.doi.org/10.1139/cjss-2018-0141.

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There is limited information about the genesis, classification, and properties of calcareous and gypsiferous soils of western Iran. This study investigated the morphological, physical, and mineralogical characteristics of soils on different physiographic units, including plateau, colluvial fans, and piedmont plain in the Aleshtar region. The results indicated that the parent materials (calcareous and gypsiferous) as well as topographic conditions had the most influence on the soil profile development, pedogenic processes, and clay mineralogy. Illite, chlorite, smectite, palygorskite, and kaolinite clay minerals were identified using X-ray powder diffraction, transmission electron microscopy, and scanning electron microscopy. Illite, chlorite, and kaolinite have genetically been inherited from parent rocks. Neoformation of smectite and palygorskite other than genetic inheritance was formed as a result of calcite and gypsum precipitation and poor drainage. Calcareous soils with the petrocalcic horizon and gypsiferous soils contained more pedogenic palygorskite. In conclusion, we suggest adding a new great group of Gypsixerepts to the soil taxonomy to reflect the presence of pedogenic gypsum in Inceptisols.
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4

Dahash Al-Doury, Hamza Ayad y Basim Shakir Al-Obaidi. "Boron adsorption kinetics in some Gypsiferous soils". IOP Conference Series: Earth and Environmental Science 1120, n.º 1 (1 de diciembre de 2022): 012022. http://dx.doi.org/10.1088/1755-1315/1120/1/012022.

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Abstract The aim of this paper was to study the kinetics of Boron adsorption by using kinetics concepts and different concentrations of Boron. A number of laboratory experiments were conducted on three samples of gypsum soils which were taken from some fields of Tikrit University and Al-Alam city. The soil samples contained different concentrations of gypsum low and medium with concentration of (62) g.kg-1 and (134) gm.kg-1 respectively from the College of Agriculture’s field at the University of Tikrit, and the third was high with a concentration of (241) gm.kg-1 from the Al-Alam city. Some physical and chemical properties of the soil samples were measured. The experiment included taking un-stimulated samples using plastic tubes and from sampling sites to obtain natural soil models, adding different concentrations of Boron to the soil and using kinetics equations to describe the adsorption of Boron. The most accurate description of Boron adsorption was the (Elovich equation). The treatment (0 mgB.L-1) gave a coefficient of determination of (0.9757) (0.9591) (0.9621) and a standard error of (1.605) (1.307) (1.429) for gypsum soils (low, medium and high) respectively. The treatment (20 mgB.L-1) gave a coefficient of determination (0.9671) (0.983) (0.9874) and a standard error of (9.011) (9.583) (8.804) for gypsum soils (low, medium and high) respectively.
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5

Al-Dabbas, Moutaz A., Tom Schanz y Mohammed J. Yassen. "Proposed engineering of gypsiferous soil classification". Arabian Journal of Geosciences 5, n.º 1 (6 de agosto de 2010): 111–19. http://dx.doi.org/10.1007/s12517-010-0183-5.

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6

Afsharian, Aliabbas, Nader Abbasi, Amir Khoserowjerdi y Hossein Sedghi. "Analytical and Laboratory Evaluation of the Solubility of Gypsiferous Soils". Civil Engineering Journal 2, n.º 11 (30 de noviembre de 2016): 590–99. http://dx.doi.org/10.28991/cej-2016-00000061.

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Gypsum soil is one of the problematic soils because of considerable solubility for Gypsum particles in contact with water. In this research the effects of three factors including; gypsum percent, hydraulic gradient and soil texture were studied on solubility of gypsum soils. To do this, samples of gypsum soils were provided artificially by adding various rates of natural gypsum rock including 0, 5, 10, 20 and 30 percent weight of 3 kinds of soil textures including clay, silty clay and sand. Totally, 15 types of gypsum soils were prepared. Then each of gypsum soils were leached under five hydraulic gradients levels 0.5, 1, 2, 5 and 10. The results of the test indicated that the rate of Gypsum in the soil had direct effect on the rate of soluble and by increasing the percent of Gypsum, the rate of solubility was increased. In addition, by increasing hydraulic gradient, the speed of water existing soil media in a specified time was increased and also higher rate of Gypsum was derived. Also the soil texture has a considerable effect on the rate of solubility of soil. In this study, rate of solubility of gypsum soils with sandy soils was determined as 1.5 to 2 times more than the rate of clay soils. The statistical results show the highest impact of gypsum percentage and lowest impact of hydraulic gradient soil on solubility of particles in different types of soils and it has no significant effect on the overall equation of the soil texture.
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7

POCH, R. M. y H. VERPLANCKE. "Penetration resistance of gypsiferous horizons". European Journal of Soil Science 48, n.º 3 (septiembre de 1997): 535–43. http://dx.doi.org/10.1111/j.1365-2389.1997.tb00219.x.

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8

POCH, R. M. y H. VERPLANCKE. "Penetration resistance of gypsiferous horizons". European Journal of Soil Science 48, n.º 3 (septiembre de 1997): 535–43. http://dx.doi.org/10.1046/j.1365-2389.1997.00089.x.

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9

Azam, Shahid, Sahel N. Abduljauwad, Naser A. Al-Shayea y Omar S. B. Al-Amoudi. "Expansive characteristics of gypsiferous/anhydritic soil formations". Engineering Geology 51, n.º 2 (diciembre de 1998): 89–107. http://dx.doi.org/10.1016/s0013-7952(98)00044-1.

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10

Olarieta, José Ramón, Rafael Rodríguez-Ochoa, Emilio Ascaso y Montserrat Antúnez. "Rootable depth controls height growth of Pinus halepensis Mill. in gypsiferous and non-gypsiferous soils". Geoderma 268 (abril de 2016): 7–13. http://dx.doi.org/10.1016/j.geoderma.2015.12.023.

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11

Marques, Maria, Ana Álvarez, Pilar Carral, Iris Esparza, Blanca Sastre y Ramón Bienes. "Estimating Soil Organic Carbon in Agricultural Gypsiferous Soils by Diffuse Reflectance Spectroscopy". Water 12, n.º 1 (16 de enero de 2020): 261. http://dx.doi.org/10.3390/w12010261.

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Contents of soil organic carbon (SOC), gypsum, CaCO3, and quartz, among others, were analyzed and related to reflectance features in visible and near-infrared (VIS/NIR) range, using partial least square regression (PLSR) in ParLes software. Soil samples come from a sloping olive grove managed by frequent tillage in a gypsiferous area of Central Spain. Samples were collected in three different layers, at 0–10, 10–20 and 20–30 cm depth (IPCC guidelines for Greenhouse Gas Inventories Programme in 2006). Analyses were performed by C Loss-On-Ignition, X-ray diffraction and water content by the Richards plates method. Significant differences for SOC, gypsum, and CaCO3 were found between layers; similarly, soil reflectance for 30 cm depth layers was higher. The resulting PLSR models (60 samples for calibration and 30 independent samples for validation) yielded good predictions for SOC (R2 = 0.74), moderate prediction ability for gypsum and were not accurate for the rest of rest of soil components. Importantly, SOC content was related to water available capacity. Soils with high reflectance features held c.a. 40% less water than soils with less reflectance. Therefore, higher reflectance can be related to degradation in gypsiferous soil. The starting point of soil degradation and further evolution could be established and mapped through remote sensing techniques for policy decision making.
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12

Homaee, Mehdi y Ahmad Farrokhian Firouzi. "Deriving point and parametric pedotransfer functions of some gypsiferous soils". Soil Research 46, n.º 3 (2008): 219. http://dx.doi.org/10.1071/sr07161.

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Parametric description of the soil water retention curve as well as the hydraulic conductivity curve is needed for modelling water movement and solute transport in the vadose zone. The objective of this study was to derive pedotransfer functions (PTFs) to predict the water retention curve and the van Genuchten and the van Genuchten–Mualem parameters of some gypsiferous soils. Consequently, 185 gypsiferous soil samples were collected and their physical properties were measured. The particle size distribution was determined in 2 steps: (i) with gypsum, by covering the particles with barium sulphate; (ii) without gypsum, using the hydrometry method. The easily obtainable variables were grouped as (1) particle size distribution, bulk density, and gypsum content; and (2) bulk density, gypsum content, geometric mean, and geometric standard deviation of the particle diameter. Stepwise multiple linear regression method was used to derive the PTFs. Two types of parametric and point functions were derived using these variables. The first group of variables predicted water retention and the van Genuchten and van Genuchten–Mualem parameters better than the second group. The gypsum content appeared to be the second dominant parameter for predicting water retention at 0, −330, −1000, −3000, −5000, and −15 000 cm. The derived PTFs were compared with the Rosetta database as independent dataset. The validity test indicated that in order to predict the hydraulic properties of gypsiferous soils the derived PTFs are more accurate than what can be obtained from the Rosetta database. Removal of gypsum increased the water retention at pressure heads of 0, –100, –330, –1000, –3000, –5000, and –15 000 cm (P < 0.01). The results also indicated that hydraulic parameters were different for the same soil with and without gypsum.
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13

Boyadgiev, T. G. y W. H. Verheye. "Contribution to a utilitarian classification of gypsiferous soil". Geoderma 74, n.º 3-4 (diciembre de 1996): 321–38. http://dx.doi.org/10.1016/s0016-7061(96)00074-2.

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14

Razouki, Sabah, Dina Kamal Kuttah, Omar Al-Damluji y Isam Nashat. "Improving fine-grained gypsiferous soil by increased compaction". International Journal of Pavement Engineering 13, n.º 1 (febrero de 2012): 32–38. http://dx.doi.org/10.1080/10298436.2011.563850.

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15

Jha, Arvind Kumar y P. V. Sivapullaiah. "Unpredictable Behaviour of Gypseous/Gypsiferous Soil: An Overview". Indian Geotechnical Journal 47, n.º 4 (21 de junio de 2017): 503–20. http://dx.doi.org/10.1007/s40098-017-0239-5.

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16

Ibrahim, A. N. y T. Schanz. "Improvement of Gypsiferous Soil Strength by Silicone Oil". Soil Mechanics and Foundation Engineering 54, n.º 2 (mayo de 2017): 117–21. http://dx.doi.org/10.1007/s11204-017-9443-7.

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17

Salman, Adil K., Saad E. Aldulaimy, Huthaifa J. Mohammed y Yaareb M. Abed. "Performance of soil moisture sensors in gypsiferous and salt-affected soils". Biosystems Engineering 209 (septiembre de 2021): 200–209. http://dx.doi.org/10.1016/j.biosystemseng.2021.07.006.

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18

Poch, Rosa Maria, Walter De Coster† y Georges Stoops. "Pore space characteristics as indicators of soil behaviour in gypsiferous soils". Geoderma 87, n.º 1-2 (diciembre de 1998): 87–109. http://dx.doi.org/10.1016/s0016-7061(98)00068-8.

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19

Webber, Heidi, Chandra Madramootoo, Maryse Bourgault, Mikhail Horst, Galina Stulina y Donald Smith. "Response of two legume crops to soil salinity in gypsiferous soils". Irrigation and Drainage 58, n.º 5 (diciembre de 2009): 586–95. http://dx.doi.org/10.1002/ird.448.

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20

Azeez, Salim Neimat y Iraj Rahimi. "Distribution of Gypsiferous Soil Using Geoinformatics Techniques for Some Aridisols in Garmian, Kurdistan Region-Iraq". Kurdistan Journal of Applied Research 2, n.º 1 (30 de junio de 2017): 57–64. http://dx.doi.org/10.24017/science.2017.1.9.

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The paper deals with techniques of image classification developed to distinguish gypsiferous soils, using the integration of field observation and remote sensing and more specific Landsat/ETM imagery. A Landsat image was assembled and used in this study. The image was acquired by the ETM/Landsat 7 sensor, which was acquired on August, 2012.Two main data have been used in this research, I) Field and II) Satellite data. The amount of gypsum is different from location to other, may be due to the parent material of some locations of the study area which is rich with gypsum minerals, and there is evidence of Gypsic indopedon horizon. The results indicated that the amount of organic matter decreases with increasing the amount of gypsum. In general, the study area is rich with total lime. These results reflect the effect of decalcification and calcification processes caused the formation of illuvial subsurface (calcic) horizon in some location of the study area.The pH values were around neutral to slightly alkaline due to the effect of calcareous parent material and type of climatic conditions. The low ECe values indicate that the soil was non-saline reflected by low values of ECe. The soil classes of the study area are belonging to Haplogypsids, Haplocalcids, Haplocambids, Calciargids and Haplargids. Two maps were prepared to show the distribution of gypsiferous in the study area, the first one is map which shows the output of supervised classification and maximum- like hood for specific, and the second is the thermal-based classification. Thermal-based map could predict the gypsiferous area in a better way, than the classification based only on spectral properties of non-thermal bands.
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21

Artieda, O. y J. Herrero. "Pedogenesis in Lutitic Cr Horizons of Gypsiferous Soils". Soil Science Society of America Journal 67, n.º 5 (septiembre de 2003): 1496–506. http://dx.doi.org/10.2136/sssaj2003.1496.

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22

Razouki, S. S., D. K. Kuttah, O. A. Al-Damluji y I. H. Nashat. "Using gypsiferous soil for embankments in hot desert areas". Proceedings of the Institution of Civil Engineers - Construction Materials 161, n.º 2 (mayo de 2008): 63–71. http://dx.doi.org/10.1680/coma.2008.161.2.63.

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23

Russo, David. "Simulation of Leaching of A Gypsiferous-Sodic Desert Soil". Water Resources Research 22, n.º 8 (agosto de 1986): 1341–49. http://dx.doi.org/10.1029/wr022i008p01341.

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24

Muhammad, H. J. y K. C. Jones. "Phosphorus in gypsiferous soils: the influence of soil properties on P fractionation". Geoderma 53, n.º 1-2 (mayo de 1992): 97–104. http://dx.doi.org/10.1016/0016-7061(92)90023-z.

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25

Khademi, H., A. R. Mermut y H. R. Krouse. "Sulfur isotope geochemistry of gypsiferous Aridisols from central Iran". Geoderma 80, n.º 1-2 (octubre de 1997): 195–209. http://dx.doi.org/10.1016/s0016-7061(97)00091-8.

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26

M. A. AL-Omary, Asaad. "Studying of the Gypsiferous Soil Suction Using Filter Paper Technique". AL-Rafdain Engineering Journal (AREJ) 19, n.º 3 (28 de junio de 2011): 26–36. http://dx.doi.org/10.33899/rengj.2011.27012.

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27

Russo, David. "Leaching and Water Requirement Studies in a Gypsiferous Desert Soil". Soil Science Society of America Journal 49, n.º 2 (marzo de 1985): 432–37. http://dx.doi.org/10.2136/sssaj1985.03615995004900020032x.

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28

Minashina, N. G. y G. K. Gavrilova. "Halochemical processes upon washing of calcareous gypsiferous solonchaks". Eurasian Soil Science 41, n.º 1 (enero de 2008): 29–38. http://dx.doi.org/10.1134/s1064229308010043.

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29

Rahimi, T. y S. H. Musavi Jahromi. "Effect of “A Polyurethane Mastic” on Shear Strength of Gypsiferous Soil". Journal of Water and Soil Science 19, n.º 74 (1 de enero de 2016): 157–65. http://dx.doi.org/10.18869/acadpub.jstnar.19.74.13.

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30

Amrhein, C. y D. L. Suarez. "Procedure for Determining Sodium-Calcium Selectivity in Calcareous and Gypsiferous Soils". Soil Science Society of America Journal 54, n.º 4 (julio de 1990): 999–1007. http://dx.doi.org/10.2136/sssaj1990.03615995005400040011x.

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31

Ismaeal, Ammar S. "Diagnostics and Characterization of Micro morphological Features of some Soil Series in Baiji City, Central Iraq". Tikrit journal for agricultural sciences 22, n.º 2 (30 de junio de 2022): 132–47. http://dx.doi.org/10.25130/tjas.22.2.15.

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Three pedons were selected representing the soil series of the study area in Baiji city, which are Khadraniya, Al-Sharqat, and Manjour soils series, representing calcareous and gypsiferous soils, to diagnose some of micro-morphological Features in soil series horizons. Pedons were morphologically described, and disturbed and undisturbed soil samples were collected from each horizon. The presence of (calcic) and (gypsic) horizons has been diagnostic by morphological field results, ccumulation of lime and gypsum in soil matrix as vertical gypsic threads and beards and aggregates under gravel and gypsum crystals the size of coarse sand, as well as some lime and gypsum as nodules intertwined within soil structure units in soil horizons that reflects the influence of parent material and primary sedimentation sources .The results of morphological characteristics are represented by the presence of gypsum crystals in distinct shapes, including lenticular, and spindle as Enhedral and subhedral, and the size of fine to coarse sand, as well as the granules that in filling pores, as well as the presence of pores in vughs and chamber, as well as the spongy and granular structure, as well as the presence of iron coating in the form Encases of gypsum crystals.
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32

Yamnova, I. A. y G. I. Chernousenko. "Gypsiferous Gazha Soils of the Subboreal Zone of Eurasia". Eurasian Soil Science 56, n.º 1 (enero de 2023): 1–15. http://dx.doi.org/10.1134/s106422932260169x.

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33

Elrashidi, M. A., D. Hammer, C. A. Seybold, R. J. Engel, R. Burt y P. Jones. "APPLICATION OF EQUIVALENT GYPSUM CONTENT TO ESTIMATE POTENTIAL SUBSIDENCE OF GYPSIFEROUS SOILS". Soil Science 172, n.º 3 (marzo de 2007): 209–24. http://dx.doi.org/10.1097/ss.0b013e31802ff892.

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34

Offiah, O. y D. S. Fanning. "Liming Value Determination of a Calcareous, Gypsiferous Waste for Acid Sulfate Soil". Journal of Environmental Quality 23, n.º 2 (marzo de 1994): 331–37. http://dx.doi.org/10.2134/jeq1994.00472425002300020017x.

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35

KARGAS, G. y P. KERKIDES. "DISCUSSION of “Soil water content and salinity determination using different dielectric methods in saline gypsiferous soil”". Hydrological Sciences Journal 54, n.º 1 (febrero de 2009): 210–12. http://dx.doi.org/10.1623/hysj.54.1.210.

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36

Kurdi, A. A. y R. M. Shihab. "Influence of Biochar Application and Gypsum Content on some Hydrophysical Characteristics of a Gypsiferous Soil". IOP Conference Series: Earth and Environmental Science 1214, n.º 1 (1 de julio de 2023): 012002. http://dx.doi.org/10.1088/1755-1315/1214/1/012002.

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Abstract Laboratory experiments were carried out to study the effect of biochar addition and gypsum content on some hydrophysical properties and soil quality index. Soil samples with gypsum content (G2) 100, (G3) 150, (G4) 200, (G5) 250 and (G6) 350 g kg-1, were prepared by mixing a surface soil sample for a depth of 0-10 cm with a gypsum content (G1) 60 g kg-1 and a subsurface soil sample from a depth of 60-100 cm with a gypsum content (G7) 443 g kg-1 at the research station of the College of Agriculture / Tikrit University. biochar was imported from the Plantonix company, boichar were mixed with the soil at a ratio of (B0) 0,(B1) 20, (B2) 40,(B3) 60,(B4) 80 g kg -1, then the prepared soil samples were moistened by spraying to within two-thirds of the field capacity, then incubated in open plastic containers with continuous stirring daily for two months for the purpose of homogenization. After the end of the incubation period, the soil samples were air dried and passed through a sieve with 2 mm openings. Mean Weight Diameter (MWD) gave highest values for biochar is 4.68,4.29,4.03,3.75 and 2.57 mm for gypsum levels, respectively. While it was less value for the comparison treatment. While the physical soil quality index gave the highest value when the treatment G4B3 reached 0.045 (good) while it was the lowest value when the treatment G1B2 reached 0.024 (weak or weak).and the results Infiltration were decreased at a content of 60 g kg-1 reaching 1.29 cm. Despite this, it was significantly superior to the comparison treatment, which amounted to 0.97 cm. Then increased significantly with increasing boichar content. They were 0.97, 1.64, 1.54, 1.29 and 1.98 cm for the biochar content of B4–B0, respectively.
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37

Wang, H. L., N. S. Bolan, M. J. Hedley y D. J. Horne. "The influence of surface incorporated lime and gypsiferous by-products on surface and subsurface soil acidity. I. Soil solution chemistry". Soil Research 37, n.º 1 (1999): 165. http://dx.doi.org/10.1071/s97057.

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Lime, fluidised bed boiler ash (FBA), and flue gas desulfurisation gypsum (FGDG) were incorporated in the top 50 mm of repacked columns of either an Allophanic (the Patua sand loam) or an Ultic (the Kaawa clay loam) soil, at rates containing calcium equivalent to 5000 kg/ha of CaCO3. Each column was leached with 400 mm of water. After leaching, the columns were sliced into sections for chemical analysis. In the columns of the variable-charged, allophanic Patua soil, topsoil-incorporated FBA ameliorated top and subsurface soil acidity through liming and the ‘self-liming effect’ induced by sulfate sorption, respectively. The soil solution pH of the top and subsurface layers of the Patua soil were raised to pH 6·40 and 5·35, respectively, by the FBA treatment, compared with pH 4·80 and 4·65, respectively, in the control treatment. Consequently, phytotoxic labile monomeric aluminium (Al) concentration in the soil solution of the FBA treatment was reduced to <0·1 µM Al, compared with 8–64 µM Al in the untreated control. FGDG had a similar ‘self-liming effect’ on subsurface of the Patua soil, but not the topsoil. Whereas FBA raised the pH of the Kaawa topsoil, no ‘self-liming effect’ of subsurface soil by sulfate sorption was observed on the Kaawa subsurface soil, which is dominated by permanently charged clay minerals. Application of FBA and FGDG to both soils, however, caused significant leaching of native soil Mg2+ and K+. These nutrients were displaced from the exchange sites by the relatively high concentration of Ca2+ released from dissolution of gypsum.
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38

Sarmast, Masoomeh, Mohammad Hady Farpoor y Isa Esfandiarpour Boroujeni. "Comparing Soil Taxonomy (2014) and updated WRB (2015) for describing calcareous and gypsiferous soils, Central Iran". CATENA 145 (octubre de 2016): 83–91. http://dx.doi.org/10.1016/j.catena.2016.05.026.

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39

Moghiseh, E. y A. Heidari. "Polygenetic saline gypsiferous soils of the Bam region, Southeast Iran". Journal of soil science and plant nutrition, ahead (2012): 0. http://dx.doi.org/10.4067/s0718-95162012005000028.

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40

Razouki, S. S. y O. A. El-Janabi. "Decrease in the CBR of a gypsiferous soil due to long-term soaking". Quarterly Journal of Engineering Geology and Hydrogeology 32, n.º 1 (febrero de 1999): 87–89. http://dx.doi.org/10.1144/gsl.qjeg.1999.032.p1.07.

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41

Cantón, Y., A. Solé-Benet y R. Lázaro. "Soil–geomorphology relations in gypsiferous materials of the Tabernas Desert (Almerı́a, SE Spain)". Geoderma 115, n.º 3-4 (agosto de 2003): 193–222. http://dx.doi.org/10.1016/s0016-7061(03)00012-0.

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42

Jha, Arvind Kumar y P. V. Sivapullaiah. "Susceptibility of strength development by lime in gypsiferous soil—A micro mechanistic study". Applied Clay Science 115 (octubre de 2015): 39–50. http://dx.doi.org/10.1016/j.clay.2015.07.017.

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43

M. AlKubisi and A. K. Ahmed, A. y Akram A. H. "Diagnosis of gypsiferous soil and determination of gypsum content using their spectral properties". ANBAR JOURNAL OF AGRICULTURAL SCIENCES 15, n.º 2 (1 de diciembre de 2017): 271–80. http://dx.doi.org/10.32649/aagrs.2017.143596.

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44

Sepehrnia, N., A. A. Mahboubi, M. R. Mosaddeghi, A. A. Safari Sinejani y G. Khodakaramian. "Escherichia coli transport through intact gypsiferous and calcareous soils during saturated and unsaturated flows". Geoderma 217-218 (abril de 2014): 83–89. http://dx.doi.org/10.1016/j.geoderma.2013.11.004.

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45

Jiménez-Ballesta, Raimundo, Sandra Bravo, Jose Angel Amorós, Caridad Pérez-de-los-Reyes, Jesus García-Pradas, Monica Sánchez y Francisco Jesús García-Navarro. "An Environmental Approach to Understanding the Expansion of Future Vineyards: Case Study of Soil Developed on Alluvial Sediments". Environments 8, n.º 9 (17 de septiembre de 2021): 96. http://dx.doi.org/10.3390/environments8090096.

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The importance of soil properties in wine grape production is generally treated as secondary to climate and canopy management. This study was undertaken to characterize and classify a singular soil resource for a vineyard in a traditional viticultural region: Castilla-La Mancha, central Spain. The soil under study was described and sampled using standard soil survey procedures as outlined by FAO, and served as a pedologic window for Gleyic Fluvisol (Calcaric, Humic), according to the FAO System, or Fluventic Haploxerept, according to the Soil Taxonomy System. This soil, developed on alluvial materials of Holocene age related to the Gigüela river (either carbonatic or gypsiferous) has, in addition to obvious hydromorphic features (that reduce its use), high organic matter content (5.5% in the Ap horizon) and moderate salt content (between 1.14 and 2.39 dS/m). Other properties are common to most vineyard soils in Castilla-La Mancha, such as alkaline reactivity (pH between 7.6 and 8.2); calcium and magnesium as the dominant cations followed by sodium and potassium; finally, some deficiency in N (0.11%) and P (12.3 mg/kg). The most restricting soil factors for vineyard growth of this soil type were waterlogging, which can affect vine roots, and the appearance of certain salinity problems. The final conclusion of this study was that the use of the studied soil type for vineyard cultivation could be recommended to farmers only in the case of improving soil properties—for example, draining the river level.
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46

Bolan, N. S., H. L. Wang, M. J. Hedley y D. J. Horne. "The influence of surface incorporated lime and gypsiferous by-products on surface and subsurface soil acidity. II. Root growth and agronomic implications". Soil Research 37, n.º 1 (1999): 181. http://dx.doi.org/10.1071/s97058.

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Lucerne (Medicago sativa. L) root elongation in acid soils amended by gypsiferous coal combustion by-products was investigated in a glasshouse study. Lime, fluidised bed boiler ash (FBA), and flue gas desulfurisation gypsum (FGDG) were mixed into the surface 50 mm of either an Allophanic (the Patua sand loam) or an Ultic (the Kaawa clay loam) soil column, at rates containing calcium equivalent to 5000 kg/ha of CaCO3. Lucerne was grown on each column after it was leached with 400 mm of water. Whereas the lime treatment had no effect on root elongation in the acidic subsurface of the Patua soil, the FBA and FGDG treatments significantly improved lucerne root penetration into the subsurface soil (P < 0·05). This was due to the ‘self-liming effect’ induced by sulfate adsorption. Regression analysis indicated that the molar ratio of labile monomeric aluminium and calcium in soil solution (Al : Ca) was a good indicator of the degree of root growth into subsurface soil layers (R2= 0·94). In contrast, topsoil incorporated amendments did not influence root penetration into the acidic subsurface of the Kaawa soil, which is dominated by permanently charged clay minerals. The ‘self-liming effect’ caused by gypsum application is not a sustainable practice. Lime should be applied to neutralise the topsoil acidity, when gypsum is used as subsurface soil acidity ameliorant. FBA, which contains both lime and gypsum, can meet these requirements.
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47

Al-Kayssi, A. W. "Quantifying soil physical quality by using indicators and pore volume-function characteristics of the gypsiferous soils in Iraq". Geoderma Regional 30 (septiembre de 2022): e00556. http://dx.doi.org/10.1016/j.geodrs.2022.e00556.

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48

Al-Tameemi, Hadeel y Abdul-Kareem Al-Rubaiee. "Improvement of Gypsiferous Soils Properties by Hydrated Lime in the Najaf City, Middle of Iraq". Iraqi Geological Journal 55, n.º 2F (31 de diciembre de 2022): 149–61. http://dx.doi.org/10.46717/igj.55.2f.10ms-2022-12-25.

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This study includes the effect of lime addition on the engineering properties of gypseous soil taken from a part of the Najaf- Karbla plateau (52, 48, 72% gypsum). Also this study shows increase in the proportion of gypsum in the soil in the northwest direction of the study area. Maximum dry density and optimum moisture content (2.065, 2.025 and 2.003) at 15%, 14% and 15% respectively for the three samples. The maximum dry density decrease while optimum moisture content increases with increasing ratio of hydrate lime. The results show that the gypscous soil becomes non - plastic when treated by > 3 % of hydrated lime. Cohesion Force, with the increase in the percentage of lime from 3% to 6%, after which it decreases as the percentage addition of lime to reach zero when the addition became 9%. The reason for this is that the lime increases the cohesion strength between molecules to the limit of adding 6%, then the cohesion decreases to zero when 9% is added lime. The results of a liquid limits are changed and the soil becomes more liquidity limit when it's treated due to the hydrated lime increases liquid limits significantly, and it becomes clear that the limit of liquidity. After which the lime molecules work to separate the molecules from each other, and the cohesion force decreases. It is also noted that the internal friction angle decreases with the increase in the percentage of lime.
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49

Alalwani, Sara A. y Bassam H. Alkhateb. "Effect of Date Residues and Organic Acids on Some Physical Properties of Gypsiferous Soil". IOP Conference Series: Earth and Environmental Science 1222, n.º 1 (1 de agosto de 2023): 012009. http://dx.doi.org/10.1088/1755-1315/1222/1/012009.

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Abstract A laboratory experiment was carried out at the College of Agriculture, University of Anbar, located at 43°20‘09.7“E longitude, 33°25‘36.7“N latitude for the period from 1/10/2021 to 1/10/2022, to study the effect of date residues, organic acids, and wetting / drying cycles on some physical properties of gypsiferous soil. The soil was selected from the site of the Fallujah palm station that located at longitude 43º51'. 05. 36 E. and latitude 33º17'. 46. 82‘N., date residues were added in three levels, without addition (comparison treatment), 0.1% and 0.2% mixed with soil. Organic acids was added at 0% and 0.1% and packaged in plastic cylinders and the treatments were exposed for two levels of wetting and drying cycles (6 and 8) cycles. The stability of aggregates, dispersion ratio, saturated hydraulic conductivity, and cumulative infiltration were measured. The results showed that the addition of date residues by 0.2% improved all the physical properties. Aggregates stability values increased by 13.41% and saturated hydraulic conductivity values decreased, which reached 4.33 cm.h-1. Accumulator infiltration up to 24.01cm and the capillary height reached to 40.0 cm, while the dispersion rate decreased to 37. 27%. The aggregates stability increased and the dispersion ratio, water conductivity and infiltration decreased by adding organic acids when their averages reached 12.12%, 40.77%, 5.19 cm-1 and 21.41cm, respectively. Increasing the number of wetting / drying cycles negatively affected most of the studied properties, as the dispersion ratio increased to 42.08%, and the cumulative infiltration decreased to 21.73 cm.
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50

BOUKSILA, F., M. PERSSON, R. BERNDTSSON y A. BAHRI. "Reply to discussion of “Soil water content and salinity determination using different dielectric methods in saline gypsiferous soil”". Hydrological Sciences Journal 54, n.º 1 (febrero de 2009): 213–14. http://dx.doi.org/10.1623/hysj.54.1.213.

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