scholarly journals Impact of plant water uptake strategy on soil moisture and evapotranspiration dynamics during drydown

2006 ◽  
Vol 33 (3) ◽  
Author(s):  
Adriaan J. Teuling ◽  
Remko Uijlenhoet ◽  
François Hupet ◽  
Peter A. Troch
Keyword(s):  
Soil Moisture ◽  
Water Uptake ◽  
Plant Water ◽  
Plant Water Uptake

scholarly journals Plant Water Uptake Thresholds Inferred From Satellite Soil Moisture

2020 ◽  
Vol 47 (7) ◽  
Author(s):  
Maoya Bassiouni ◽  
Stephen P. Good ◽  
Christopher J. Still ◽  
Chad W. Higgins
Keyword(s):  
Soil Moisture ◽  
Water Uptake ◽  
Plant Water ◽  
Plant Water Uptake

Inferring plant physiologic parameters for root water uptake modelling from high frequency in-situ isotope measurements

2020 ◽  
Author(s):  
Stefan Seeger ◽  
Michael Rinderer ◽  
Markus Weiler
Keyword(s):  
Soil Moisture ◽  
Water Uptake ◽  
Root Distribution ◽  
Fine Root ◽  
Root Water Uptake ◽  
Plant Water ◽  
Plant Water Uptake ◽  
Fine Root Distribution ◽  
Isotope Measurements

<p>In the face of global climate change, a well-informed knowledge of plant physiologic key parameters is essential to predict the behavior of ecosystems in a changing environment. Many of these parameters may be determined with lab or pot experiments, but it could prove problematic to transfer results obtained in a such experiments with small trees to fully grown trees. Therefore, new approaches to determine relevant parameters for mature trees are still required. Regarding plant water uptake, parameters related to fine root distribution (maximum depth, depth distribution and rhizosphere radius) and parameters describing the physiological limits of root water uptake are important, but usually hard or costly to assess for fully grown trees.  In-situ isotope probes (Volkmann et al. 2016a  & 2016b) are a promising recent development that offer new possibilities for the investigation of plant water uptake and associated physiological parameters.</p><p>In this study we used in-situ stable water isotope probes in soil (six depths from 10 to 100 cm) and in tree xylem of mature (140 years) European beech trees (three heights between 0 and 8 m). With those probes, we monitored soil and xylem isotope signatures after an isotopically labeled (Deutrium-Excess = 100 ‰) irrigation pulse equivalent to 150 mm of precipitation and foursubsequent natural precipitation events over a period of twelve weeks with a high temporal resolution (six or more measurements per probe per day). Those measurements were complemented with measurements of soil moisture and sap flow dynamics. We interpolated our measured soil isotope and soil moisture data in order to obtain spatially and temporally continuous data for those soil parameters. Then we used this data as an input to the Feddes-Jarvis plant water uptake model, in order to predict the isotopic signature of plant water uptake at daily time steps. With the help of our observed isotopic signatures, we were able to directly constrain the critical water potential parameter of the Feddes model as well as the underlying fine root distribution. Furthermore, the observed dampening of the breakthrough curve of our Deuterium-labeling pulse allowed us to infer information on the rhizosphere  radius and water transport velocities in the fine roots and stem between the points of root water uptake and the eight meter stem height.</p><p>With our field experiment we showed that in-situ isotope measurements in soil profiles and in tree xylem sap can help to constrain plant water uptake modelling parameters. Future experiments might use this approach to scrutinize lab-scale derived hypothesizes regarding tree water uptake and to investigate the temporal and spatial dynamics of root water uptake in the field.</p><p> </p><p><em>Volkmann, T. H., Haberer, K., Gessler, A., & Weiler, M. (2016a). High‐resolution isotope measurements resolve rapid ecohydrological dynamics at the soil–plant interface. New Phytologist, 210(3), 839-849. </em></p><p><em>Volkmann, T. H., Kühnhammer, K., Herbstritt, B., Gessler, A., & Weiler, M. (2016b). A method for in situ monitoring of the isotope composition of tree xylem water using laser spectroscopy. Plant, cell & environment, 39(9), 2055-2063. </em></p><p><em>Jarvis, N. J. (1989). A simple empirical model of root water uptake. Journal of Hydrology, 107(1-4), 57-72. </em></p>

A SIMPLE, MECHANISTIC MODEL FOR SOIL RESISTANCE TO PLANT WATER UPTAKE

Soil Science ◽  
1992 ◽  
Vol 153 (2) ◽  
pp. 87-93 ◽  
Author(s):  
P. MOLDRUP ◽  
D. E. ROLSTON ◽  
J. AA. HANSEN ◽  
T. YAMAGUCHI
Keyword(s):  
Water Uptake ◽  
Mechanistic Model ◽  
Plant Water ◽  
Soil Resistance ◽  
Plant Water Uptake

scholarly journals EFFECTS OF PLANT WATER UPTAKE ON THE DISTRIBUTION OF SOIL CHEMICAL COMPONENT

2016 ◽  
Vol 72 (4) ◽  
pp. I_259-I_264
Author(s):  
Kei NAKAGAWA ◽  
Yoshiyuki NAGAURA ◽  
Tosao HOSOKAWA ◽  
Masahiko SAITO ◽  
Hiroshi YASUDA
Keyword(s):  
Water Uptake ◽  
Chemical Component ◽  
Plant Water ◽  
Plant Water Uptake

Simulating Plant Water Uptake in Moist, Lighter Textured Soils

1983 ◽  
Vol 26 (1) ◽  
pp. 0087-0091 ◽  
Author(s):  
Ernest W. Tollner ◽  
Fred J. Molz
Keyword(s):  
Water Uptake ◽  
Plant Water ◽  
Plant Water Uptake

scholarly journals Plant Water Uptake in Drying Soils

2014 ◽  
Vol 164 (4) ◽  
pp. 1619-1627 ◽  
Author(s):  
Guillaume Lobet ◽  
Valentin Couvreur ◽  
Félicien Meunier ◽  
Mathieu Javaux ◽  
Xavier Draye
Keyword(s):  
Water Uptake ◽  
Plant Water ◽  
Plant Water Uptake

Plant water uptake along a diversity gradient provides evidence for complementarity in hydrological niches

Oikos ◽  
2019 ◽  
Vol 128 (12) ◽  
pp. 1748-1760 ◽  
Author(s):  
Kimberly O'Keefe ◽  
Jesse B. Nippert ◽  
Katherine A. McCulloh
Keyword(s):  
Water Uptake ◽  
Plant Water ◽  
Plant Water Uptake ◽  
Diversity Gradient

Plant water uptake from soil through a vapor pathway

2020 ◽  
Vol 170 (3) ◽  
pp. 433-439
Author(s):  
Ana I. Vargas ◽  
Bruce Schaffer ◽  
Leonel da S. L. Sternberg
Keyword(s):  
Water Uptake ◽  
Plant Water ◽  
Plant Water Uptake

Cryogenic vacuum artifacts do not affect plant water-uptake studies using stable isotope analysis

Ecohydrology ◽  
2017 ◽  
Vol 10 (8) ◽  
pp. e1892 ◽  
Author(s):  
S.L. Newberry ◽  
D.B. Nelson ◽  
A. Kahmen
Keyword(s):  
Stable Isotope ◽  
Water Uptake ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Plant Water ◽  
Plant Water Uptake ◽  
Cryogenic Vacuum ◽  
Uptake Studies

Summer and winter drought in a cold desert ecosystem (Colorado Plateau) part I: effects on soil water and plant water uptake

2005 ◽  
Vol 60 (4) ◽  
pp. 547-566 ◽  
Author(s):  
S. Schwinning ◽  
B.I. Starr ◽  
J.R. Ehleringer
Keyword(s):  
Soil Water ◽  
Water Uptake ◽  
Colorado Plateau ◽  
Desert Ecosystem ◽  
Plant Water ◽  
Cold Desert ◽  
Plant Water Uptake
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