Download or read book The Importance of Selected Soil Physical and Chemical Properties for the Prediction of Soil Erodibility of Several Western Upland Soils written by Kenneth E. Trott and published by . This book was released on 1981 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relative Erodibilities of Several California Forest and Range Soils written by Kenneth E. Trott and published by . This book was released on 1982 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 26 (thesis year 1981) a total of 11 ,048 theses titles from 24 Canadian and 21 8 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 26 reports theses submitted in 1981, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Saturation capillary Pressure Relations for Oil Toluene and TCE in Two and Three fluid Systems written by Robert D. Busby and published by . This book was released on 1993 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prediction of Subsoil Erodibility Using Chemical Mineralogical and Physical Parameters written by Charles B. Roth and published by . This book was released on 1974 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents evidence that the surface soil erodibility prediction nomograph (Wischmeier et al., 1971) which uses terms involving soil particle size, organic matter, structure and permeability, could not be improved upon by consideration of other mineralogical and chemical parameters. However, the surface soil erodibility nomograph did not adequately predict the soil erodibility factor, K, of high clay subsoils studied in the field under simulated rainfall conditions as a part of this project. A multiple linear regression equation and nomograph were developed which can be used to estimate the erodibility factor, K, of many high clay subsoils. The subsoil erodibility nomograph uses terms involving soil particle size distribution and the amount of amorphous hydrous oxides of iron, aluminum, and silicon in the soil. Multiple regression analysis revealed that amorphous iron, aluminum, and silicon hydrous oxides serve as soil stabilizers in subsoils, whereas organic matter is the major stabilizer in surface soils. Evidence is presented to show that soil erodibility from semi-compacted fill and scalped subsoil surface conditions were essentially identical. It is reported that the scalped condition is the best standard soil surface to base the calculation of the erodibility factor for subsoils. It is suggested that a soil-management factor should replace the cropping-management factor in the Universal Soil-Loss Equation when the Equation is used to predict subsoil erosion.
Download or read book Physical and Chemical Properties of Major Imperial Valley Soils written by Eugene R. Perrier and published by . This book was released on 1974 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transactions of the ASAE written by American Society of Agricultural Engineers and published by . This book was released on 1992 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relative Erodibility of Nine Selected Moroccan Soils as Related to Their Physical Chemical and Mineralogical Properties written by Abdelaziz Merzouk and published by . This book was released on 1985 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Physical and Chemical Property Effects on Toxicity and Bioaccumulation of as V Cd Pb and Zn by Herbaceous Plant Receptors written by Richard Hunter Anderson and published by . This book was released on 2008 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Soil properties can mitigate hazardous effects of environmental contaminants through soil chemical sequestration and should be considered when evaluating ecological risk from terrestrial contamination. The objective of this research was to identify predominant soil chemical/physical properties that modify phytoaccumulation and phytotoxicity of As (V), Cd, Pb, and Zn to the non-hyperaccumulating higher plants; Alfalfa (Medicago sativa L.), Perennial ryegrass (Lolium perenne L.), and Japanese millet (Echinochloa crusgalli L.) and model effects with statistical prediction equations. Bioassays were conducted on five artificially contaminated experimental soils that ranged in selected chemical/physical properties. Soil properties selected for characterization included organic C (OC), pH, cation exchange capacity (CEC), clay content, and amorphous oxides of iron (Fe), aluminum (Al), and manganese (Mn). Phytotoxicity and phytoaccumulation parameters were estimated from dose-response experiments for each contaminant-plant-soil combination. Significant statistical associations were found between each endpoint and a subset of the selected soil properties for all four contaminants. However, significant intercorrelation was observed among soil property measurements which necessitated an alternative to conventional multiple regression commonly used by ecotoxicologists. Ridge regression, a technique that suppresses the effects of multicollinearity and enables prediction, was used to assess the marginal contributions of each mitigating soil property. In general, Ridge regression results suggested that OC, clay content, and soil pH, collectively, or CEC, individually, best described trends in phytoaccumulation and phytotoxicity for the cationic metals. Conversely, Ridge regression results suggested that soil pH and the Fe oxide fraction were usually the most important properties found to mitigate As phytoaccumulation and phytotoxicity. An additional objective was to evaluate differential contaminant sensitivities of the experimental plants that were used in the dose-response experiments as inter-species variability can limit the utility of statistical models used to predict the effects of soil properties on phytotoxicity of terrestrial contaminants. We, therefore, present a novel approach to toxicity estimation (the Plant Contaminant Sensitivity Index) that partitions the effect of differential sensitivities of test organisms from that of soil properties. The proposed normalization procedure is simply illustrated and is intended to be used as a means to integrate toxicity information from different studies with multiple test species.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1971-12 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Some Physico chemical Properties on Soil Strength Stability of Crusts and Soil Erosion written by Matthias Kasaija Magunda and published by . This book was released on 1992 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Properties of 144 Soils from Three Intermountain States written by Robert E. Taylor and published by . This book was released on 1956 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Physical Properties of Soils in Their Relation to Moisture and Crop Distribution written by Milton Whitney and published by . This book was released on 1892 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laboratory Techniques in the Prediction of Soil Erodibility written by Les Harder and published by . This book was released on 1976 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
