نتایج جستجو برای: modeling soil behavior

تعداد نتایج: 1143260  

Journal: :Water 2022

The improved understanding of the behavior antibiotics in soil is great importance due to their environmental hazard and frequent detection. In this work, adsorption-desorption mobility behaviors ciprofloxacin sandy silt soil, affecting fate environment, were studied by a series batch tests column tests. tests, effects contact time, initial concentration, dosage, solution pH, ionic strength on ...

2015
Yujie He Jinyan Yang Qianlai Zhuang Jennifer W. Harden Anthony D. McGuire Yaling Liu Lianhong Gu

Soil carbon dynamics of terrestrial ecosystems play a significant role in the global carbon cycle. Microbial-based decomposition models have seen much growth recently for quantifying this role, yet dormancy as a common strategy used by microorganisms has not usually been represented and tested in these models against field observations. Here we developed an explicit microbial-enzyme decompositi...

Journal: :Journal of Geotechnical and Geoenvironmental Engineering 2021

Centrifuge modeling has been considered as an effective means of studying flexural soil–pile interaction, yet the conventional use elastic material to model RC pile prototype is unable reproduce important nonlinear quasi-brittle behavior. It also remains a challenge numerically interaction due nonlinearity both soil and materials. This paper presents small-scale for testing soil–structure under...

Journal: :نشریه علمی - پژوهشی هیدرولوژی کاربردی 0
hamzeh noor mehdi vafakhah zakaria assadolahi seyed khalagh mirnia

suspended sediment resulted from distributed soil erosions facilitates nutrient transportation and influences soil depletion. phosphorus (p) is one of the major limiting nutrients controlling eutrophication of surface water. irregular p load pulsed by heavy rainfall may damage the ecological quality of downstream waters. p transport study during rainfall events is important in both predicting a...

Journal: :Environmental Modelling and Software 2015
Magdalena Necpálová Robert P. Anex Michael N. Fienen Stephen J. Del Grosso Michael J. Castellano John E. Sawyer Javed Iqbal José L. Pantoja Daniel W. Barker

The ability of biogeochemical ecosystem models to represent agro-ecosystems depends on their correct integration with field observations. We report simultaneous calibration of 67 DayCent model parameters using multiple observation types through inverse modeling using the PEST parameter estimation software. Parameter estimation reduced the total sum of weighted squared residuals by 56% and impro...

2015
David Jon Muth David J. Muth Eliot Winer Xinwei Wang Douglas Karlen Arne Hallam

Agricultural residues have been identified as a significant potential resource for bioenergy production, but serious questions remain about the sustainability of harvesting residues. Agricultural residues play an important role in limiting soil erosion from wind and water and in maintaining soil organic carbon. Because of this, multiple factors must be considered when assessing sustainable resi...

Journal: :Computers & Mathematics with Applications 2006

2001
Markus Neteler

The analysis of spatial variability of soils has been of interest to soil scientists and geographers for quite some time. Information on soil properties are usually available from a limited number of point measurements and spatial estimates are prepared in two dimensions (e.g. by interpolation or other technique). However, soil is essentially a 3D object with varying properties in all spatial d...

2015
Reza Hosseini Nathaniel K. Newlands Charmaine B. Dean Akimichi Takemura

We present a flexible, integrated statistical-based modeling approach to improve the robustness of soil moisture data predictions in a pilot study in Canada with a small data set with 44 locations and 3 time points. We apply this approach in exploring the consequence of choice of leading predictors and model structures. Competing predictors (covariates) and spatial covariance are often ignored ...

Journal: :Soils and Foundations 2010

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید