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Providing Optimal Root-Zone Fluid Fluxes: Effects of Hysteresis on Capillary-Dominated Water Distributions in Reduced Gravity
Technical Paper
2009-01-2360
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Management of water, air and nutrients in coarse-textured porous plant-growth substrates relies not only on the relative amounts of fluids but also on their distribution within porous media. Integration of plants in future life support systems for space exploration raises the question of how fluid distributions in porous plant-growth substrates are altered under reduced gravitational conditions. Central to addressing this issue is the behavior of the water retention characteristic (WRC). WRC encapsulates fluid-porous medium interactions and is key for control of water supply to plants. The hysteretic nature of WRC implies non-homogenous water distributions between its primary draining and wetting curves. During dynamic drainage and wetting cycles, considerable water content gradients develop at separations of only a few pore lengths. In the absence of a gravity force, these non-homogeneous distributions give rise to considerably different fluid distribution relative to terrestrial observations in the same porous media. Consequently, such altered fluid distributions may reduce connectivity and increase tortuosity of gaseous pathways sustaining diffusive gas transport compared to terrestrial conditions for similar air-filled contents. Such changes in fluid pathways may induce limitations to exchange of respiratory gases for plant roots, and highlight a range of other potential changes in microgravity behavior of capillary dominated processes important for distribution and transport of fluids in porous media.
Citation
Heinse, R., Jones, S., Tuller, M., Bingham, G. et al., "Providing Optimal Root-Zone Fluid Fluxes: Effects of Hysteresis on Capillary-Dominated Water Distributions in Reduced Gravity," SAE Technical Paper 2009-01-2360, 2009, https://doi.org/10.4271/2009-01-2360.Also In
References
- van Bavel C. 1951 A soil aeration theory based on diffusion Soil Sci. 72 33 46
- Bingham G. Podolsky I. Topham T. Mulholland J. 2002 Lada: The ISS plant substrate microgravity testbed SAE Technical Paper 2002-01-2388
- Chau J. Or D. Sukop M. C. 2005 Simulation of gaseous diffusion in partially saturated porous media under variable gravity with lattice Boltzmann methods Water Resour Res. 41 8
- Collin M. Rasmuson A. 1988 A comparison of gas diffusivity models for unsaturated porous media Soil Science Society of America Journal 52 1559 1565
- van Genuchten M. 1980 A closed-form equation for predicting the hydraulic conductivity of unsaturated soils Soil Sci. Soc. Am. J. 44 892 898
- Haslam I. 2006 Lattice Boltzmann Matlab Scripts Retrieved March 26 2009 http://www.exolete.com/code/lbm
- Heinse R. Jones S. B. Steinberg S. L. Tuller M. Or D. 2007 Measurements and Modeling of Variable Gravity Effects on Water Distribution and Flow in Unsaturated Porous Media Vadose Zone J 6 713 724 10.2136/vzj2006.0105
- Ivanova T. N. Sapunova S. M. Kostov P. T. Ilieva I. I. 2005 Recent advances in the development of the SVET space greenhouse equipment
- Ivanova T. Doncheva S. Ilieva I. Kostov P. Sapunova S. Dikova R. 2006 Experiment investigating the influence of oxygen deficiency on plants grown in microgravity
- Jones S. Heinse R. Bingham G. Or D. 2005 Modeling and Design of Optimal Growth Media from Plant-Based Gas and Liquid Fluxes SAE Technical Paper 2005-01-2949
- Jones S. Or D. 1998 Design of porous media for optimal gas and liquid fluxes to plant roots Soil Sci Soc Am J 62 563 573
- Jones S. Or D. 1999 Microgravity effects on water flow and distribution in unsaturated porous media: Analysis of flight experiments Water Resour. Res. 35 929 942
- Jones S. Or D. Bingham G. 2003 Gas diffusion measurement and modeling in coarse-textured porous media Vadose Zone J 2 602 610
- Levine H. G. 2003 Water Offset Nutrient Delivery Experiment (WONDER) Ann. Report Dynamac Corp.
- Moldrup P. Olesen T. Schjonning P. Yamaguchi T. Rolston D. E. 2000 Predicting the Gas Diffusion Coefficient in Undisturbed Soil from Soil Water Characteristics Soil Sci Soc Am J 64 94 100
- Moldrup P. Yoshikawa S. Olesen T. Komatsu T. Rolston D. E. 2003 Gas Diffusivity in Undisturbed Volcanic Ash Soils: Test of Soil-Water-Characteristic-Based Prediction Models Soil Sci Soc Am J 67 41 51
- Monje O. Stutte G. Chapman D. 2005 Microgravity does not alter plant stand gas exchange of wheat at moderate light levels and saturating CO2 concentration Planta 222 336 345 10.1007/s00425-005-1529-1
- Mualem Y. 1976 A new model for predicting the hydraulic conductivity of unsaturated porous media Water Resour. Res. 12
- Musgrave M. E. Kuang A. X. Xiao Y. Stout S. C. Bingham G. E. Briarty L. G. Levinskikh M. A. Sychev V. N. Podolski I. G. 2000 Gravity independence of seed-to-seed cycling in Brassica rapa Planta 210 400 406
- Or D. Tuller M. Jones S. B. 2009 Liquid Behavior in Partially Saturated Porous Media under Variable Gravity Soil Sci Soc Am J 73 341 350
- Podolsky I. Mashinsky A. 1994 Peculiarities of moisture transfer in capillary-porous soil substitutes during space flight Adv. Space Res. 14 39 46
- Porterfield D. M. Matthews S. W. Daugherty C. J. Musgrave M. E. 1997 Spaceflight Exposure Effects on Transcription, Activity, and Localization of Alcohol Dehydrogenase in the Roots of Arabidopsis thaliana Plant Physiol. 113 685 693
- Porterfield D. Monje O. Stutte G. Musgrave M. 2000 Rootzone hypoxic responses result from inhibition of gravity dependent oxygen transport in microgravity Gravita Space Biol Bull 14 50
- Richards L. A. 1931 Capillary conduction of liquids through porous mediums Physics 1 318 333
- Šimůnek J. Genuchten M. T. V. Šejna M. 2005 The HYDRUS-1D Software Package for Simulating the One-Dimensional Movement of Water, Heat, and Multiple Solutes in Variably-Saturated Media
- Steinberg S. L. Poritz D. 2005 Measurement of Hydraulic Characteristics of Porous Media Used to Grow Plants in Microgravity Soil Sci. Soc. Am. J. 69 301 310
- Steinberg S. L. Henninger D. L. 1997 Response of the Water Status of Soybean to Changes in Soil Water Potentials Controlled by the Water Pressure in Microporous Tubes Plant Cell Environm. 20 1506 1516
- Steinberg S. Jones S. Xiao M. Reddi L. Kluitenberg G. Or D. Alexander J. Daidzic N. Tuller M. 2005 Challenges to understanding fluid behavior in plant growth media under microgravity SAE Technical Paper 2005-01-2947
- Stout S. C. Porterfield D. M. Briarty L. G. Kuang A. Musgrave M. E. 2001 Evidence of Root Zone Hypoxia in Brassica rapa L. Grown in Microgravity International Journal of Plant Sciences 162 249 255
- Stutte G. W. Monje O. Goins G. D. Tripathy B. C. 2005 Microgravity effects on thylakoid, single leaf, and whole canopy photosynthesis of dwarf wheat Planta 223 46 56 10.1007/s00425-005-0066-2