Uncovering the critical soil moisture thresholds of plant water stress for European ecosystems

2021 ◽  
Author(s):  
Zheng Fu ◽  
Philippe Ciais ◽  
David Makowski ◽  
Ana Bastos ◽  
Paul C. Stoy ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Water Stress ◽  
Plant Water ◽  
Plant Water Stress

Modelling soil moisture, water partitioning, and plant water stress under irrigated conditions in desert urban areas

Ecohydrology ◽  
2014 ◽  
pp. n/a-n/a ◽  
Author(s):  
Thomas J. Volo ◽  
Enrique R. Vivoni ◽  
Chris A. Martin ◽  
Stevan Earl ◽  
Benjamin L. Ruddell
Keyword(s):  
Soil Moisture ◽  
Water Stress ◽  
Urban Areas ◽  
Plant Water ◽  
Plant Water Stress ◽  
Water Partitioning

scholarly journals Review of Soil Moisture and Plant Water Stress Models Based on Satellite Thermal Imagery

2017 ◽  
Vol 49 (1) ◽  
pp. 73
Author(s):  
Artur Łopatka ◽  
Tomasz Miturski ◽  
Rafał Pudełko ◽  
Jerzy Kozyra ◽  
Piotr Koza
Keyword(s):  
Soil Moisture ◽  
Water Stress ◽  
Plant Water ◽  
Thermal Imagery ◽  
Plant Water Stress ◽  
Stress Models

Dynamic Response of Terrestrial Hydrological Cycles and Plant Water Stress to Climate Change in China

2011 ◽  
Vol 12 (3) ◽  
pp. 371-393 ◽  
Author(s):  
Fulu Tao ◽  
Zhao Zhang
Keyword(s):  
Climate Change ◽  
Soil Moisture ◽  
Water Stress ◽  
Elevated Co2 ◽  
Terrestrial Ecosystem ◽  
Plant Water ◽  
Emission Scenarios ◽  
Climate Scenarios ◽  
Plant Water Stress ◽  
Hydrological Cycles

Abstract Rising atmospheric CO2 concentration CO2 and climate change are expected to have a major effect on terrestrial ecosystem hydrological cycles and plant water stress in the coming decades. The present study investigates the potential responses of terrestrial ecosystem hydrological cycles and plant water stress across China to elevated CO2 and climate change in the twentieth and twenty-first centuries using the calibrated and validated Lund–Potsdam–Jena dynamic global vegetation model (LPJ-DGVM) and eight climate change scenarios. The spatiotemporal change patterns of estimated evapotranspiration (ET), soil moisture, runoff, and plant water stress due to climate change and elevated CO2 are plotted singly and in combination. Positive future trends in ET, soil moisture, and runoff—although differing greatly among regions—are projected. Resultant plant water stress over China’s terrestrial ecosystem generally could be eased substantially through the twenty-first century under the climate scenarios driven by emission scenarios that consider economic concerns. By contrast, under the climate scenarios driven by emission scenarios that consider environmental concerns, plant water stress could be eased until 2060, then begin to fluctuate until 2100. The net impact of physiological and structural vegetation responses to elevated CO2 could result in an increasing trend in runoff in southern and northeastern China, and a decreasing trend in runoff in northern and northwestern China in the twentieth century. It is projected to reduce ET by 1.5 × 109 to 6.5 × 109 m3 yr−1 on average, and increase runoff by 1.0 × 109 to 5.4 × 109 m3 yr−1 during 2001–2100 across China’s terrestrial ecosystems, although the spatial change pattern could be quite diverse. These findings, in partial contradiction to previous results, present an improved understanding of transient responses of China’s terrestrial ecosystem hydrological cycles and plant water stress to climate change and elevated CO2 in the twentieth and twenty-first centuries.

scholarly journals Leaf compatible “eco-friendly” temperature sensor clip for high density monitoring wireless networks

2017 ◽  
Vol 4 (1) ◽  
pp. 55-60 ◽  
Author(s):  
Valeria Palazzari ◽  
Paolo Mezzanotte ◽  
Federico Alimenti ◽  
Francesco Fratini ◽  
Giulia Orecchini ◽  
...  
Keyword(s):  
Decision Support ◽  
Water Stress ◽  
Temperature Sensor ◽  
Irrigation System ◽  
Fuel Oil ◽  
Plant Water ◽  
Temperature Differential ◽  
Water Pump ◽  
Plant Water Stress ◽  
System A

This paper describes the design, realization, and application of a custom temperature sensor devoted to the monitoring of the temperature differential between the leaf and the air. This difference is strictly related to the plant water stress and can be used as an input information for an intelligent and flexible irrigation system. A wireless temperature sensor network can be thought as a decision support system used to start irrigation when effectively needed by the cultivation, thus saving water, pump fuel oil, and preventing plant illness caused by over-watering.

scholarly journals Reducing the Excessive Evaporative Demand Improved the Water-use Efficiency of Greenhouse Cucumber by Regulating the Trade-off between Irrigation Demand and Plant Productivity

HortScience ◽  
2018 ◽  
Vol 53 (12) ◽  
pp. 1784-1790 ◽  
Author(s):  
Dalong Zhang ◽  
Yuping Liu ◽  
Yang Li ◽  
Lijie Qin ◽  
Jun Li ◽  
...  
Keyword(s):  
Water Stress ◽  
Water Use Efficiency ◽  
Water Flow ◽  
Water Use ◽  
Plant Productivity ◽  
Plant Water ◽  
Evaporative Demand ◽  
Plant Water Stress ◽  
Irrigation Demand ◽  
Use Efficiency

Although atmospheric evaporative demand mediates water flow and constrains water-use efficiency (WUE) to a large extent, the potential to reduce irrigation demand and improve water productivity by regulating the atmospheric water driving force is highly uncertain. To bridge this gap, water transport in combination with plant productivity was examined in cucumber (Cucumis sativus L.) grown at contrasting evaporative demand gradients. Reducing the excessive vapor pressure deficit (VPD) decreased the water flow rate, which reduced irrigation consumption significantly by 16.4%. Reducing excessive evaporative demand moderated plant water stress, as leaf dehydration, hydraulic limitation, and excessive negative water potential were prevented by maintaining water balance in the low-VPD treatment. The moderation of plant water stress by reducing evaporative demand sustained stomatal function for photosynthesis and plant growth, which increased substantially fruit yield and shoot biomass by 20.1% and 18.4%, respectively. From a physiological perspective, a reduction in irrigation demand and an improvement in plant productivity were achieved concomitantly by reducing the excessive VPD. Consequently, WUE based on the criteria of plant biomass and fruit yield was increased significantly by 43.1% and 40.5%, respectively.

Is the Keetch–Byram drought index (KBDI) directly related to plant water stress?

2006 ◽  
Vol 234 ◽  
pp. S27 ◽  
Author(s):  
Gavriil Xanthopoulos ◽  
Georgios Maheras ◽  
Vassiliki Gouma ◽  
Markos Gouvas
Keyword(s):  
Water Stress ◽  
Drought Index ◽  
Plant Water ◽  
Plant Water Stress
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