[PDF] Top 20 Spatial variability of soil properties and soil erodibility in the Alqueva reservoir watershed

... Abstract. The aim of this work is to investigate how the spa- tial variability of soil properties and soil erodibility (K fac- tor) were affected by ... See full document

... Studies of soil-geomorphology relations have made great progress with the implementation of the concepts of landscape models, which take into account small gradients of ... See full document

... chemical properties studied had a defined spatial dependence; semivariograms were adjusted to the spherical mathematical model (Table 2), except for pH and Mg values, which had a pure nugget ... See full document

... SNEDECOR, G.W.; COCHRAN, W.G. Statistical methods. 6th Edition. Ames: Iowa State University Press, 1967. 593 p. SOUZA, L.S. Variabilidade espacial do solo em sistemas de manejo. 1992. 162p. Tese (Doutorado) - Faculdade ... See full document

... observed in Figures 5 and 6, more than one GU was found within the same soil type, which means that factors other than those taken into account by Geo- morphon drive soil ...number ... See full document

... types of soil in the Amazon region include soil with an anthropogenic A-horizon, ...These soil units, known as Dark Earths, Indian Dark Earths, or Archaeological Dark Earths ... See full document

... the spatial variability of soil Co 2 emission is controlled by several properties related to the production and transport of Co 2 inside the ...that ... See full document

... Soil spatial variability of physical properties is a complication for soil management accomplishment such as fertilization, irrigation, liming, and harvest, among ... See full document

... - The aim of this study was to evaluate the spatial dependence between chemical properties of the soil and yield components in the soybean ... See full document

... knowledge of spatial distribution of soil attributes, particularly chemical ones, which is very relevant for agricultural ...on spatial interpolation of soil ... See full document

... explain the catchment-scale spatial vari- ability of soil moisture have been motivated primarily by the need to understand runoff generation or other “wet” hy- drologic processes ... See full document

... The spatial continuity of the soil physical properties was confirmed (Kamimura, Santos, Oliveira, Dias, & Guimarães, 2013); ...i.e., spatial models represent ideal ... See full document

... adoption in Brazilian apple orchards is still ...evaluating the spatial variability of certain soil properties as soil density, soil penetration resistance, ... See full document

... have the main characteristics the vertical productivity, reduced costs, soil physical, chemical and biological improvement to promote production sustainable ...thus, the study aimed to ... See full document

... for the estimation of some soil properties, K factor and R factor at unsampled locations, based on the sampled data, allowing for the analysis of its spatial ... See full document

... determine the actual state of contamination of soils and ...regarding the methodology for determining these values. In this context, this study aimed to establish the ... See full document

... pH and SMP index (variance around the mean of 10 % and significance level of ...number of subsamples, e.g., 26 for Al soil content for the least demanding level ... See full document

... intensity and frequency are the vulnerable criteriafor soil erosion of a ...processes of the soil may be the cause of new land management practices in ... See full document

... results of statistical analysis (Table 1) show that the average values of height decrease when simulated rain intensity ...increases. The same behavior is observed for the variance ... See full document

... mechanism of modification of these precipitations one should take into account that effect of modification of hypereutectic silumins depends on earlier transition to liquid phase of ... See full document