Now showing items 11-20 of 1376
Correlating soil porosity and respective geological unit in Paraíba do sul Valley, Brazil: a geostatistical methodology proposal
This manuscript aims proposing a methodology for correlating soil porosity to the respective geological units using geostatistical analysis techniques, including interpolation data by kriging. The site studied was in Lorena ...
Stochastic simulation of time-series models combined with geostatistics to predict water-table scenarios in a Guarani Aquifer System outcrop area, Brazil
Stochastic methods based on time-series modeling combined with geostatistics can be useful tools to describe the variability of water-table levels in time and space and to account for uncertainty. Monitoring water-level ...
Using geostatistical analysis to evaluate the presence of Rotylenchulus reniformis in cotton crops in Brazil: Economic implications
(Soc Nematologists, 2002-09-01)
In recent years, the productivity of cotton in Brazil has been progressively decreasing, often the result of the reniform nematode Rotylenchulus reniformis. This species call reduce crop productivity by up to 40%. Nematodes ...
Spatial variability of chemical attributes of a soil under different uses and managements
(Soc Brasileira De Ciencia Do SoloVicosaBrasil, 2007)
Boreholes plans optimization methodology combining geostatistical simulation and simulated annealing
Nowadays, the prospection plans have the difficult task of ensuring a more complete and rich characterization of the rock mass for the purpose of optimizing costs and increasing safety in geotechnical projects. Currently, ...
Comparing three indices of catch per unit effort using Bayesian geostatistics
(Elsevier B.V., 2009-11-01)
In assessing a fish stock, indices based on catch per unit effort (CPUE) are frequently used. Estimates of three indices of catch per unit effort were compared here (CPUE(1), CPUE(2) and CPUE(3)), considering the fitting ...