Zobrazeno 1 - 10
of 79
pro vyhledávání: '"K-J. S. Kung"'
Publikováno v:
Near Surface Geophysics. 8:213-221
An integrated acoustic and electromagnetic (EM) wave-based technique was developed to estimate sediment porosity and top-layer thickness in shallow freshwater environments. The integrated methodology reduces the limitation of each of the individual t
Autor:
K. J. S. Kung, Timothy J. Gish
Publikováno v:
Geoderma. 138:57-64
In order to comprehend the mechanism of solute transport and to develop predictive models, it is critical to first develop an accurate monitoring protocol to monitor the field-scale solute mass flux through an undisturbed soil profile. A total solute
Autor:
James A. Doolittle, Timothy J. Gish, Craig S. T. Daughtry, P. T. Miller, Wayne Dulaney, K-J. S. Kung
Publikováno v:
Proceedings of the Fourth International Conference on Precision Agriculture
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c8837845bb9f0b3bf6a198a3e8dc1cc
https://doi.org/10.2134/1999.precisionagproc4.c34
https://doi.org/10.2134/1999.precisionagproc4.c34
Autor:
Eileen J. Kladivko, M. Hanke, C. S. Helling, Dan B. Jaynes, K.-J. S. Kung, Tammo S. Steenhuis, Timothy J. Gish
Publikováno v:
Soil Science Society of America Journal. 69:1196-1208
these patterns suggested that the impact of preferential pathways on contaminanttransportcanbeconceptualizedasthatoccurringthrough small sample sizes in a field may not represent the speccylindrical capillary tubes. We then proposed a distribution fu
Publikováno v:
Journal of Environmental Quality. 34:274-286
Subsurface soil water dynamics can influence crop growth and the fate of surface-applied fertilizers and pesticides. Recently, a method was proposed using only ground-penetrating radar (GPR) and digital elevation maps (DEMs) to identify locations whe
Publikováno v:
Soil Science Society of America Journal. 68:1833-1837
Rainfall simulators with high uniformity and low intensities are required in many research areas related to environmental quality. To examine the characteristics of field-scale macropore-type preferential flow, we designed a portable water applicatio
Autor:
Wayne Dulaney, P. T. Miller, K.-J. S. Kung, James A. Doolittle, Timothy J. Gish, Craig S. T. Daughtry
Publikováno v:
Soil Science Society of America Journal. 66:1620-1629
Complex interactions between soil heterogeneity and soil water movement have inhibited the development of a methodology to accurately monitor subsurface water or chemical fluxes at the field-scale. A protocol is presented that identifies subsurface c
Publikováno v:
Soil Science Society of America Journal. 65:1368-1376
We conducted a sequential tracer leaching study on a 24.4 by 42.7 m field plot to investigate the temporal behavior of chemical movement to a 1.2-m deep field drain during irrigation and subsequent rainfall events over a 14-d period. The herbicides a
Autor:
Timothy J. Gish, G. D. Bubenzer, Tammo S. Steenhuis, K.-J. S. Kung, C. S. Helling, Eileen J. Kladivko
Publikováno v:
Soil Science Society of America Journal. 64:1296-1304
Field experiments were conducted on tile-drained plots at the South East Purdue Agricultural Center in Butlerville, Indiana, to quantify contaminant transport via preferential flow paths in a silt loam soil. Breakthrough patterns of three fluorobenzo
Autor:
K.-J. S. Kung, Shen-Haw Ju
Publikováno v:
Computers & Geosciences. 23:175-187
The Richards equation for water movement in unsaturated soils is highly nonlinear and generally cannot be solved analytically. An alternative is to solve the equation numerically with finite-element methods. Conventionally, it has been accepted that