caa a22 4500 463162560 CHVBK 20180406164752.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s11242-006-9084-1 doi (NATIONALLICENCE)springer-10.1007/s11242-006-9084-1 Influence of root resistivity on plant water uptake mechanism, part I: numerical solution [Elektronische Daten] [Anna Levin, Abraham Shaviv, Peter Indelman] The issue of water flow through the root zone of field crops represents a complex problem requiring knowledge of a large spectrum of phenomena from various disciplines. Although many investigations have been devoted to gain better understanding of water dynamics in the root zone, the problem is still insufficiently understood. The main objective of the presented work was to analyze the importance of root water resistivity in the plant water extraction process. The problem was solved numerically for a wide range of the soil-root conductivity ratio (SRCR). Two different types of root water uptake (RWU) mechanisms were obtained. The first one is related to low root resistivity or low SRCR, and, thus, exhibits a so-called "moving uptake front” (MUF) effect observed previously in several experimental studies. The second one is inherent in large values of root resistivity or high values of SRCR (larger than 104), and is strongly dependent on the root density distribution. Springer Science+Business Media, Inc., 2007 Root water uptake nationallicence Root resistivity nationallicence Moving uptake front nationallicence Numerical solution nationallicence Levin Anna Faculty of Civil and Environmental Engineering, Israel Institute of Technology, 32000, Haifa, Israel aut Shaviv Abraham Faculty of Civil and Environmental Engineering, Israel Institute of Technology, 32000, Haifa, Israel aut Indelman Peter Faculty of Civil and Environmental Engineering, Israel Institute of Technology, 32000, Haifa, Israel aut Transport in Porous Media Springer Netherlands 70/1(2007-10-01), 63-79 0169-3913 70:1<63 2007 70 11242 https://doi.org/10.1007/s11242-006-9084-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11242-006-9084-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Levin Anna Faculty of Civil and Environmental Engineering, Israel Institute of Technology, 32000, Haifa, Israel aut NATIONALLICENCE 700 1- Shaviv Abraham Faculty of Civil and Environmental Engineering, Israel Institute of Technology, 32000, Haifa, Israel aut NATIONALLICENCE 700 1- Indelman Peter Faculty of Civil and Environmental Engineering, Israel Institute of Technology, 32000, Haifa, Israel aut NATIONALLICENCE 773 0- Transport in Porous Media Springer Netherlands 70/1(2007-10-01), 63-79 0169-3913 70:1<63 2007 70 11242 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 463162498 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer