Spatio-temporal water uptake patterns of tree saplings are not altered by interspecific interaction in the early stage of a subtropical forest

Virtual patients and physiologies allow experimentation, design, and early-stage clinical trials in-silico. Virtual patient technology for human movement systems that encompasses musculoskeleton and its neural control are few and far in between. In this work, we present one such neuro-musculoskeletal upper limb in-silico model. This upper limb is both modular in architecture and generates movement as an emergent phenomenon out of a multiscale co-simulation of spinal cord neural control and musculoskeletal dynamics. It is developed on the NEUROiD movement simulation platform that enables a co-simulation of popular neural simulator NEURON and the musculoskeletal simulator OpenSim. In this work, we describe the design and development of the upper limb in a modular fashion, while reusing existing models and modules. We further characterize and demonstrate the use of this model in generating a range of commonly observed movements by means of a spatio temporal stimulation pattern delivered to the cervical spinal cord. We believe this work enables a first and small step towards an in-silico paradigms for understanding upper limb movement, disease pathology, medication, and rehabilitation. Index Terms : co-simulation, in-silico, NEUROiD, neuromusculoskeletal, upper limb, Virtual patient.

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Response of plants water uptake patterns to tunnels excavation based on stable isotopes in a karst trough valley

Journal of Hydrology ◽

10.1016/j.jhydrol.2019.01.073 ◽

2019 ◽

Vol 571 ◽

pp. 485-493 ◽

Cited By ~ 7

Author(s):

Jiuchan Liu ◽

Licheng Shen ◽

Zhengxiong Wang ◽

Shihui Duan ◽

Wei Wu ◽

...

Keyword(s):

Stable Isotopes ◽

Water Uptake ◽

Water Uptake Patterns

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Gross Respiratory and Water Uptake Patterns in Germinating Sugar Pine Seed

Physiologia Plantarum ◽

10.1111/j.1399-3054.1958.tb08247.x ◽

1958 ◽

Vol 11 (3) ◽

pp. 503-516 ◽

Cited By ~ 15

Author(s):

Hobert G. Stanley

Keyword(s):

Water Uptake ◽

Sugar Pine ◽

Water Uptake Patterns

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How do meteorological variables and topography control species-specific water uptake strategy along a forested hillslope?

10.5194/egusphere-egu2020-6954 ◽

2020 ◽

Author(s):

Ginevra Fabiani ◽

Daniele Penna ◽

Julian Klaus

Keyword(s):

Isotopic Composition ◽

Soil Water ◽

Water Uptake ◽

Temporal Dynamics ◽

Growth Parameters ◽

Stream Water ◽

Growing Season ◽

Grab Sampling ◽

Spatio Temporal ◽

Species Specific

In the face of current global warming conditions, temperate forest ecosystems are expected to be strongly affected by temperature increase and more frequent and intense water shortage. This leads to severe stress for forest vegetation in many temperate systems. Therefore, understanding the vegetation water use in temperate forests is urgently needed for more effective forest management strategies. Root water uptake (RWU) is a species-specific trait (tree physiology and root architecture) and its spatio-temporal patterns are controlled by a range of site-specific (e.g., topography, geology, pedology) and meteorological factors (e.g., temperature, soil humidity, rainfall.In the present study, we use stable water isotopologues as ecohydrological tracers combined with continuous measurement of hydrometeorological (weather variables, groundwater levels, soil moisture, streamflow) and physiological (sap flow, radial stem growth) parameters to investigate the spatio-temporal dynamics of water uptake for beech (Fagus sylvatica L.) and sessile oak (Quercus petraea (Matt.) Liebl) trees along a hillslope in a Luxemburgish catchment.Fortnightly field campaigns were carried out during the growing season (April-October) 2019 to sample water from xylem, soil water at different depths, groundwater, stream water, and precipitation. Soil water isotopic composition and xylem water were extracted via cryogenic distillation. Grab sampling was performed for the other water pools. The isotopic composition was determined through laser spectroscopy and mass spectrometry (for xylem samples only).From preliminary results, the isotopic composition of xylem water shows a marked seasonal variability suggesting a plasticity in RWU or a change in the isotopic composition of the water pools over the growing season. Moreover, beech and oak trees exhibit different uptake strategies when water supply is low. Within the range of observed groundwater variation topography does not play a statistically significant role on RWU.

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