Soils - Analysis
Numerical Analysis of Piles in Layered Soils: A Parametric Study
... numerical analysis of a pile-soil interaction problem is presented considering the parameters influencing the axial load-deformation behavior of the pile embedded in a layered soil ...The analysis is ...
8
Analysis of toxicity on Bacillus sphaericus from amazonian soils to Anopheles darlingi and Culex quinquefasciatus larvae
... Mortality data was analysed if variance (ANOVA) and average mortality rates in the three bioassays, including the control group, were compared by Tukey’s test at 0.05 probability level. Mean lethal concentrations (LC50) ...
8
Biodegradability of dissolved organic carbon in permafrost soils and aquatic systems: a meta-analysis
... Arctic watersheds transport an average of 34 Tg C yr −1 of dissolved organic carbon (DOC) and 6 Tg C yr −1 of par- ticulate organic carbon (POC) to the Arctic Ocean (Holmes et al., 2012; McGuire et al., 2009), not ...
16
Characterization and phylogenetic analysis of biosurfactant-producing bacteria isolated from palm oil contaminated soils
... The selected bacterial isolates were identified by us- ing 16S rRNA sequence analysis with Colony PCR technique. Colony PCR was carried out using Com primers (Schwieger and Tebbe, 1998) as previously reported ...
13
Determination of Humic Acid by Spectrophotometric Analysis in the Soils
... Two common extraction procedures utilize high pH solutions to solubilise humic acid and fulvic acid: 1) extraction with a sodium hydroxide solu- tion [7-10] and 2) extraction using a combination sodium hydroxide and ...
5
RESULTS AND DISCUSSION Database characterization and statistical analysis
... these soils, causing retention and, consequently, making water absorption more difficult for the plant in energetic ...these soils, significantly contributing to a higher solution sorption capacity in a ...
7
Multivariate Analysis and Machine Learning in Properties of Ultisols (Argissolos) of Brazilian Amazon
... of soils at a detailed ...component analysis (PCA) was applied and the most explanatory variables were separated by morphostructural units and climate ...
20
INDEX OF SOIL PHYSICAL QUALITY OF HARDSETTING SOILS ON THE BRAZILIAN COAST
... study soils were described using ...Morphological analysis and determination of horizons with hard-setting properties were based on the standards and definitions of Lemos & Santos (1996), paying ...
9
Assessment of the bacterial community of soils contaminated with used lubricating oil by PCR-DGGE
... three soils contaminated with used lubricating oil (ULO) was determined and compared using molecular analysis of bacteria cultured during the enrichment ...different soils suggests that ...
8
Soil Cover of the Kuybyshev Reservoir Islands near the Settlement of Zaymishche
... the soils of the islands have been ...studied soils, which belonged to the group of alluvial soddy soils before the creation of the reservoir, are characterized by the light granulometric ...
12
Termite Mounds Effects on Soil Properties in the Atlantic Forest Biome
... The termite genera identified in this study are commonly observed in pastures, especially C. cumulans, which has been considered an ecological key species, owing to its abundance in some areas. Moreover, termite mounds ...
14
REVISITING FIELD CAPACITY (FC): VARIATION OF DEFINITION OF FC AND ITS ESTIMATION FROM PEDOTRANSFER FUNCTIONS
... meaning. Analysis of FC data for 22 Brazilian soils and additional FC data from the literature, all measured according to the proposed definition, which is based on a 48-h drainage time after infiltration ...
15
Causes of morphological discontinuities in soils of Depressão Central, Rio Grande do Sul State, Brazil
... are dominantly at level or gently undulated (Figure 3). Soil and parent material were sampled and described with particular attention to color, structure, texture, and topography and distinctness of the boundary between ...
8
Chemical characterization of urban park soils of the metropolitan region of São Paulo
... Activation Analysis (INAA) and X-ray Fluorescence (XRF) were used for whole elemental ...activation analysis (INAA) was employed to ana- lyse the elements As, Ba, Co, Cr, Sb and Zn, as well as Cs, Fe, Hf, ...
13
IRON OXIDES IN SOILS
... Continuous crop expansion has led to a growing demand for phosphate fertilizers. A sound knowledge of the dynamics of phosphorus, and its interaction with iron oxides and organic matter, can be useful to develop ...
11
Liming of acid soils in Osijek-Baranja county
... agricultural soils of Croatia is ...in soils of poor structure with intensive agricultural ...such soils, liming would be imperatively required, but with caution because an excessive intake of lime ...
9
GEOTECHNICAL CHARACTERIZATION AND RISK ANALYSIS OF URBAN SLOPE INSTABILITY IN THE CITY OF ARACAJU - BRAZIL
... of soils that make up the slopes selected for stability assessments involved grain size analysis tests, as well as Atterberg limits and direct shear ...
17
Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locations
... The data were assessed by discriminant analysis (DA). By simultaneously analyzing several variables, the DA assesses the differences among the groups by defining the independent variables that are most important ...
9
Origin and nature of humic
... Organic elemental analyses and lnfrared analysis of humic substances In Amazon waters and soils were typical for humic substances except for the low content of ni[r] ...
14
PERSISTENCE OF THE BIOCIDE ACTIVITY OF ATRAZINE IN SOILS OF THE SOUTHEAST OF BUENOS AIRES PROVINCE1
... The analysis of herbicide residues in soils has received particular consideration as their persistence added to their potential polluting aspect may damage the subsequent crops (Liégeois et ...and ...
8