GLORIA

GEOMAR Library Ocean Research Information Access

X

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Online Resource
    Online Resource
    Graphic Presentation of a Mathematical Solution for Interacting Diffuse Layers
    Wiley ; 1970
    In:  Soil Science Society of America Journal Vol. 34, No. 2 ( 1970-03), p. 347-351
    Details
    In: Soil Science Society of America Journal, Wiley, Vol. 34, No. 2 ( 1970-03), p. 347-351
    Abstract: The scaled electrical potential, Y = z εψ/ kT , is presented as a function of the effective surface charge density, the external solution concentration, valence of the cation and distance between clay platelets for symmetric electrolytes. Swelling pressures and ion concentrations near the platelets may be calculated from these values of Y using some of the simple equations published by other authors and reproduced herein.
    Type of Medium: Online Resource
    ISSN: 0361-5995 , 1435-0661
    URL: Article
    DOI: 10.2136/sssaj1970.03615995003400020046x
    RVK:
    RA 4845
    Language: English
    Publisher: Wiley
    Publication Date: 1970
    detail.hit.zdb_id: 241415-6
    detail.hit.zdb_id: 2239747-4
    detail.hit.zdb_id: 196788-5
    detail.hit.zdb_id: 1481691-X
    SSG: 13
    SSG: 21
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Requirements for Achieving and Maintaining Uniformly Low Salt in a Saline Soil
    Wiley ; 1965
    In:  Soil Science Society of America Journal Vol. 29, No. 5 ( 1965-09), p. 597-601
    Details
    In: Soil Science Society of America Journal, Wiley, Vol. 29, No. 5 ( 1965-09), p. 597-601
    Abstract: The amount of irrigation necessary to limit salinity in the plant root zone to concentrations equal to or less than 8 mmho/cm was computed from the consumptive use, rainfall, and salinity of the irrigation water, assuming completely homogeneous plots. Heterogeneity of infiltration rates within plots required that the amount of water applied be 10 to 20% higher than in the theoretical homogeneous case in order to maintain adequate salt removal. Irrigation at 30% higher than the need for the homogeneous case resulted in reduced yields and reduced N content of wheatgrass in areas of high infiltration within the plots. Irrigation at 6% higher than necessary for the homogeneous case resulted in accumulation of salts in areas of low infiltration.
    Type of Medium: Online Resource
    ISSN: 0361-5995 , 1435-0661
    URL: Article
    DOI: 10.2136/sssaj1965.03615995002900050034x
    RVK:
    RA 4845
    Language: English
    Publisher: Wiley
    Publication Date: 1965
    detail.hit.zdb_id: 241415-6
    detail.hit.zdb_id: 2239747-4
    detail.hit.zdb_id: 196788-5
    detail.hit.zdb_id: 1481691-X
    SSG: 13
    SSG: 21
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    Contributions of Fixed Charge and Mobile Complexing Agents to the Diffusion of Zinc
    Wiley ; 1967
    In:  Soil Science Society of America Journal Vol. 31, No. 3 ( 1967-05), p. 410-413
    Details
    In: Soil Science Society of America Journal, Wiley, Vol. 31, No. 3 ( 1967-05), p. 410-413
    Abstract: Zinc was allowed to diffuse from a ZnCO 3 precipitate through an agar‐agar gel to a stream of continuously flowing water. In one treatment, part of the agar‐agar was replaced by Ca‐poly‐galacturonate to incorporate fixed negative charges in the gel in the form of carboxyl groups. In a second treatment, Cacitrate was introduced into the flowing stream of water. In every case, all phases of the system were kept in equilibrium with CaCO 3 . Both fixed charges and the mobile complexing agent increased the transport of Zn in the system, but the latter was considerably more effective than the former. One percent polygalacturonic acid increased the transport of Zn by 13%, whereas 2 × 10 ‐3 M citrate increased the transport of Zn 100‐fold. Results compare favorably with a theoretical treatment for the contribution of the mobile complexing agents to Zn transport.
    Type of Medium: Online Resource
    ISSN: 0361-5995 , 1435-0661
    URL: Article
    DOI: 10.2136/sssaj1967.03615995003100030033x
    RVK:
    RA 4845
    Language: English
    Publisher: Wiley
    Publication Date: 1967
    detail.hit.zdb_id: 241415-6
    detail.hit.zdb_id: 2239747-4
    detail.hit.zdb_id: 196788-5
    detail.hit.zdb_id: 1481691-X
    SSG: 13
    SSG: 21
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 4
    Online Resource
    Online Resource
    Reclamation of Soils Contaminated with Radioactive Strontium
    Wiley ; 1975
    In:  Soil Science Society of America Journal Vol. 39, No. 6 ( 1975-11), p. 1077-1080
    Details
    In: Soil Science Society of America Journal, Wiley, Vol. 39, No. 6 ( 1975-11), p. 1077-1080
    Abstract: Evesboro loamy sand, Sassafras sandy loam, and Fort Collins silt loam were treated with a mixed Ca‐Sr solution to give about 95% saturation with Ca and 5% saturation with Sr. Samples of these soils were placed in acrylic cylinders and leached with 0.06 N CaCl 2 to remove Sr. The leachings were mechanically controlled at various rates for different periods of time. Extracting the leached soil samples with 1 N HCl yielded residual Sr equal to 0.43, 0.47, and 0% of the Sr exchange capacity of the Evesboro, Sassafras, and Fort Collins soils, respectively. There was general agreement between Sr concentrations measured at various depths and those calculated on the basis of the Lapidus‐Amundson equation, especially so with heavier soils. The Evesboro and Fort Collins soils were also tagged with carrier‐free 85 Sr and, mounted in columns, leached with 0.06 N solutions of either CaCl 2 or SrCl 2 . The removal of 85 Sr was more complete from the Evesboro than from the Fort Collins soil, and from the center than from the edge of the columns. Short‐term leaching capability of SrCl 2 exceeded that of CaCl 2 where 85 Sr was present in amounts small enough to be adsorbed mostly on specific soil adsorption sites. Where larger amounts of 85 Sr had been adsorbed, Ca was equally effective as Sr in replacing the contaminant.
    Type of Medium: Online Resource
    ISSN: 0361-5995 , 1435-0661
    URL: Article
    DOI: 10.2136/sssaj1975.03615995003900060020x
    RVK:
    RA 4845
    Language: English
    Publisher: Wiley
    Publication Date: 1975
    detail.hit.zdb_id: 241415-6
    detail.hit.zdb_id: 2239747-4
    detail.hit.zdb_id: 196788-5
    detail.hit.zdb_id: 1481691-X
    SSG: 13
    SSG: 21
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 5
    Online Resource
    Online Resource
    The Effect of Osmotic Pressure Gradients on Water Movement in Unsaturated Soil
    Wiley ; 1969
    In:  Soil Science Society of America Journal Vol. 33, No. 1 ( 1969-01), p. 15-18
    Details
    In: Soil Science Society of America Journal, Wiley, Vol. 33, No. 1 ( 1969-01), p. 15-18
    Abstract: Water movement, in response to osmotic pressure gradients, was measured in clay loam and sandy loam soils at soil water suctions from 0.08 to 15 bars. Movement in response to osmotic pressure gradients were compared to movement in response to hydraulic pressure gradients in the soil water suction range from 0.08 to 0.65 bars. At suction less than 0.5 bars, the amount of water moved by osmotic pressure gradients was generally less than 4% of the water moved by hydraulic gradients of equal magnitude.
    Type of Medium: Online Resource
    ISSN: 0361-5995 , 1435-0661
    URL: Article
    DOI: 10.2136/sssaj1969.03615995003300010010x
    RVK:
    RA 4845
    Language: English
    Publisher: Wiley
    Publication Date: 1969
    detail.hit.zdb_id: 241415-6
    detail.hit.zdb_id: 2239747-4
    detail.hit.zdb_id: 196788-5
    detail.hit.zdb_id: 1481691-X
    SSG: 13
    SSG: 21
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 6
    Online Resource
    Online Resource
    A Comprehensive Analysis of Building Damage in the 12 January 2010 Mw7 Haiti Earthquake Using High-Resolution Satelliteand Aerial Imagery
    American Society for Photogrammetry and Remote Sensing ; 2011
    In:  Photogrammetric Engineering & Remote Sensing Vol. 77, No. 10 ( 2011-10-01), p. 997-1009
    Details
    In: Photogrammetric Engineering & Remote Sensing, American Society for Photogrammetry and Remote Sensing, Vol. 77, No. 10 ( 2011-10-01), p. 997-1009
    Type of Medium: Online Resource
    ISSN: 0099-1112
    URL: Article
    DOI: 10.14358/PERS.77.10.0997
    RVK:
    RA 4132.4
    Language: English
    Publisher: American Society for Photogrammetry and Remote Sensing
    Publication Date: 2011
    detail.hit.zdb_id: 2317128-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 7
    Online Resource
    Online Resource
    Ion Mobilities and Electric Charge of External Clay Surfaces Inferred from Potential Differences and Osmotic Flow
    Wiley ; 1972
    In:  Soil Science Society of America Journal Vol. 36, No. 3 ( 1972-05), p. 426-433
    Details
    In: Soil Science Society of America Journal, Wiley, Vol. 36, No. 3 ( 1972-05), p. 426-433
    Abstract: Bentonite, illite, and kaolinite clays were compacted, made homoionic with various cations, and placed between chloride solutions of the respective cations of different concentrations. Rates of osmotic flow, electric potentials in the solutions and streaming potentials were measured across these compacted clay membranes. The osmotic flow was often from the high salt to low salt concentration side and was generally in the direction of more negative potential, indicating electroosmosis as the mechanism involved in osmotic flow. Diffuse layer theory was used to estimate the concentration ranges in which the measured external potential differences were not appreciably different from the respective potentials in solution inside the clay. Assuming the osmotic movement to be electroosmosis, the ζ potentials were calculated from the observed potential gradients and the osmotic flux. The portion of adsorbed cations participating in the diffuse portion of the double layer was then calculated from ζ. This “mobile” fraction of the adsorbed cations appears to decrease for multivalent cations as the equilibrium solution concentration decreased. La 3+ kaolinite and Willalooka illites were positively charged and adsorbed Cl ‐ as diffuse layers. The mobile fractions estimated by this method for bentonite are in reasonably good agreement with mobile fractions estimated from diffusion and conductance measurements.
    Type of Medium: Online Resource
    ISSN: 0361-5995 , 1435-0661
    URL: Article
    DOI: 10.2136/sssaj1972.03615995003600030019x
    RVK:
    RA 4845
    Language: English
    Publisher: Wiley
    Publication Date: 1972
    detail.hit.zdb_id: 241415-6
    detail.hit.zdb_id: 2239747-4
    detail.hit.zdb_id: 196788-5
    detail.hit.zdb_id: 1481691-X
    SSG: 13
    SSG: 21
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 8
    Online Resource
    Online Resource
    Self‐Diffusion Coefficients of Phosphorus in Soil Measured by Transient and Steady‐State Methods
    Wiley ; 1965
    In:  Soil Science Society of America Journal Vol. 29, No. 2 ( 1965-03), p. 154-158
    Details
    In: Soil Science Society of America Journal, Wiley, Vol. 29, No. 2 ( 1965-03), p. 154-158
    Abstract: Self‐diffusion coefficients of P in soil were measured by two independent methods and by calculating D p from chloride diffusion. All three methods yielded similar values for D p at low moisture suctions. On Apishapa silty clay loam, values of D p ranged from 0.4 × 10 ‐7 to 15.5 × 10 ‐7 cm 2 /sec as the volumetric moisture content increased from 0.22 to 0.55, or as the soil moisture suction decreased from 6 to 〈 0.1 bar. From these values of D p a self‐diffusion coefficient for P in bulk solution was calculated, which agreed closely with the experimentally measured value. The transient state method required a separate evaluation of a capacity factor which varied between 100 to 300. If this capacity factor had been omitted, the apparent D p would have been smaller by 100‐ to 300‐fold. These results demonstrate the necessity of measuring a capacity factor when D p is to be determined by a transient state method.
    Type of Medium: Online Resource
    ISSN: 0361-5995 , 1435-0661
    URL: Article
    DOI: 10.2136/sssaj1965.03615995002900020014x
    RVK:
    RA 4845
    Language: English
    Publisher: Wiley
    Publication Date: 1965
    detail.hit.zdb_id: 241415-6
    detail.hit.zdb_id: 2239747-4
    detail.hit.zdb_id: 196788-5
    detail.hit.zdb_id: 1481691-X
    SSG: 13
    SSG: 21
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 9
    Online Resource
    Online Resource
    Chloride Diffusion in Clay‐Water Systems
    Wiley ; 1966
    In:  Soil Science Society of America Journal Vol. 30, No. 1 ( 1966-01), p. 22-25
    Details
    In: Soil Science Society of America Journal, Wiley, Vol. 30, No. 1 ( 1966-01), p. 22-25
    Abstract: Self‐diffusion coefficients of chloride were determined in sodium‐and calcium‐saturated bentonite in steady and transient state systems. In steady state systems a decrease in diffusive flow with lower salt concentrations in the equilibrium solutions can be attributed to anion exclusion in clay‐water systems. In transient state systems the influence of the free electrolyte concentration on the porous system diffusion coefficient of chloride is practically negligible. An observed reduction by about 50% in the apparent diffusion coefficient of anions in these systems was attributed to heterogeneity of the negative adsorption due to a wide range of pore sizes.
    Type of Medium: Online Resource
    ISSN: 0361-5995 , 1435-0661
    URL: Article
    DOI: 10.2136/sssaj1966.03615995003000010014x
    RVK:
    RA 4845
    Language: English
    Publisher: Wiley
    Publication Date: 1966
    detail.hit.zdb_id: 241415-6
    detail.hit.zdb_id: 2239747-4
    detail.hit.zdb_id: 196788-5
    detail.hit.zdb_id: 1481691-X
    SSG: 13
    SSG: 21
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 10
    Online Resource
    Online Resource
    Infiltration, Redistribution, and Subsequent Evaporation of Water from Soil as Affected by Wetting Rate and Hysteresis
    Wiley ; 1969
    In:  Soil Science Society of America Journal Vol. 33, No. 6 ( 1969-11), p. 832-840
    Details
    In: Soil Science Society of America Journal, Wiley, Vol. 33, No. 6 ( 1969-11), p. 832-840
    Abstract: Soil columns were wetted at three different rates which caused unequal water content profiles during infiltration. Water content profiles during infiltration, redistribution, and evaporation were observed experimentally and computed using a numerical solution of the isothermal flow equation. Each wetting rate resulted in a different drying water retention curve. The hysteresis in soil water content‐water suction relationships had a larger influence as the wetting rate increased. Hysteresis effects tend to keep the water content higher and the zone of wetting shallower during the redistribution stage when rates of wetting are faster. Higher water content and lower wetting depth at any redistribution time caused subsequent evaporation to be greater. Evaporation was directly related to the previous wetting rate, either when the soil was subjected to evaporation immediately following infiltration or when subjected to evaporation after redistribution for 4 days. The differences in evaporation between the three wetting treatments were significant at the 99% probability level. Allowing time for redistribution decreased evaporation compared to evaporation and redistribution occurring simultaneously. The effects of wetting rates and hysteresis on water content profiles and evaporation were similar in the experimental and computed results.
    Type of Medium: Online Resource
    ISSN: 0361-5995 , 1435-0661
    URL: Article
    DOI: 10.2136/sssaj1969.03615995003300060014x
    RVK:
    RA 4845
    Language: English
    Publisher: Wiley
    Publication Date: 1969
    detail.hit.zdb_id: 241415-6
    detail.hit.zdb_id: 2239747-4
    detail.hit.zdb_id: 196788-5
    detail.hit.zdb_id: 1481691-X
    SSG: 13
    SSG: 21
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...