Effect of Increased Atmospheric CO2 Concentration on Water-Use Efficiency of Plants

1999 ◽  
pp. 1163-1184
Author(s):  
Ji_i _atsk_ ◽  
Jana Pospi_ilová
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Co2 Concentration ◽  
Atmospheric Co2 ◽  
Atmospheric Co2 Concentration ◽  
Use Efficiency

Responses of global terrestrial water use efficiency to climate change and rising atmospheric CO2 concentration in the twenty-first century

2017 ◽  
Vol 11 (6) ◽  
pp. 558-582 ◽  
Author(s):  
Shufen Pan ◽  
Guangsheng Chen ◽  
Wei Ren ◽  
Shree R. S. Dangal ◽  
Kamaljit Banger ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Use Efficiency ◽  
Water Use ◽  
Co2 Concentration ◽  
First Century ◽  
Atmospheric Co2 ◽  
Atmospheric Co2 Concentration ◽  
Terrestrial Water ◽  
Use Efficiency ◽  
Twenty First Century

scholarly journals Effects of the Elevated Atmospheric CO2 Concentration on the Water Use Efficiency of Winter Wheat

2015 ◽  
Vol 29 ◽  
pp. 180-181 ◽  
Author(s):  
Balázs Varga ◽  
Szilvia Bencze ◽  
Krisztina Balla ◽  
Ottó Veisz
Keyword(s):  
Winter Wheat ◽  
Water Use Efficiency ◽  
Water Use ◽  
Co2 Concentration ◽  
Atmospheric Co2 ◽  
Elevated Atmospheric Co2 ◽  
Atmospheric Co2 Concentration ◽  
Use Efficiency

scholarly journals Effects of Elevated Atmospheric CO2 Concentration and Water Regime on Rice Yield, Water Use Efficiency, and Arsenic and Cadmium Accumulation in Grain

Agriculture ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 705
Author(s):  
Andrisa Balbinot ◽  
Anderson da Rosa Feijó ◽  
Marcus Vinicius Fipke ◽  
Dalvane Rockenbach ◽  
Joseph Harry Massey ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Rice Yield ◽  
Co2 Concentration ◽  
Atmospheric Co2 ◽  
Rice Grain ◽  
Water Regimes ◽  
Elevated Atmospheric Co2 ◽  
Atmospheric Co2 Concentration ◽  
Use Efficiency

(1) Background: Elevated atmospheric CO2 concentration affects the growth and development of the rice crop. In Southern Brazil, rice is traditionally produced with continuous irrigation, implying a significant amount of water used. Besides, continuous flooding favors the uptake of toxic elements such as arsenic (As) and cadmium (Cd). In this work, one Brazilian rice cultivar (IRGA 424) was tested for the effects of elevated CO2 concentration and different water regimes on rice yield, and As and Cd accumulation in grain. (2) Methods: Rice was grown in two CO2 concentrations (400 and 700 µmol mol−1) and two irrigation regimes (continuous and intermittent). It was evaluated the number of tillers, plant height, aboveground dry weight (ADW), water use efficiency (WUE), rice yield components, and As and Cd concentration in rice grain. (3) Results: Rice plants were taller and had a higher WUE when cultivated at e[CO2]. The ADW and the rice yield component were not affected by CO2 levels nor water regimes. Intermittent flood regimes had a lower average As concentration. The Cd concentration in the samples in both growing seasons and all treatments was below the limit of quantitation (8.76 μg kg−1). (4) Conclusions: Enhanced CO2 concentration did not affect rice yield, increased the WUE, and reduced As concentration in grains. Regarding water management, the intermittent regime enhanced WUE and promoted a reduction in As concentration in grains.

scholarly journals Elevated atmospheric CO2 concentration improves water use efficiency and growth of a widespread Cerrado tree species even under soil water deficit

2019 ◽  
Vol 33 (3) ◽  
pp. 425-436 ◽  
Author(s):  
João Paulo Souza ◽  
Nayara Magry Jesus Melo ◽  
Alessandro Dias Halfeld ◽  
Kamilla I. C. Vieira ◽  
Bruno Luan Rosa
Keyword(s):  
Water Use Efficiency ◽  
Soil Water ◽  
Water Deficit ◽  
Water Use ◽  
Tree Species ◽  
Co2 Concentration ◽  
Atmospheric Co2 ◽  
Soil Water Deficit ◽  
Elevated Atmospheric Co2 ◽  
Use Efficiency

scholarly journals Drought-induced mortality selectively affects Scots pine trees that show limited intrinsic water-use efficiency responsiveness to raising atmospheric CO2

2014 ◽  
Vol 41 (3) ◽  
pp. 244 ◽  
Author(s):  
Ana-Maria Hereş ◽  
Jordi Voltas ◽  
Bernat Claramunt López ◽  
Jordi Martínez-Vilalta
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Tree Mortality ◽  
Intercellular Co2 Concentration ◽  
Co2 Concentration ◽  
Atmospheric Co2 ◽  
Growth Enhancement ◽  
Intrinsic Water Use Efficiency ◽  
Use Efficiency ◽  
The Impact

Widespread drought-induced tree mortality has been documented around the world, and could increase in frequency and intensity under warmer and drier conditions. Ecophysiological differences between dying and surviving trees might underlie predispositions to mortality, but are poorly documented. Here we report a study of Scots pines (Pinus sylvestris L.) from two sites located in north-eastern Iberian Peninsula where drought-associated mortality episodes were registered during the last few decades. Time trends of discrimination against 13C (Δ13C) and intrinsic water-use efficiency (WUEi) in tree rings at an annual resolution and for a 34 year period were used to compare co-occurring now-dead and surviving pines. Results indicate that both surviving and now-dead pines significantly increased their WUEi over time, although this increase was significantly lower for now-dead individuals. These differential WUEi trends corresponded to different scenarios describing how plant gas exchange responds to increasing atmospheric CO2 (Ca): the estimated intercellular CO2 concentration was nearly constant in surviving pines but tended to increase proportionally to Ca in now-dead trees. Concurrently, the WUEi increase was not paralleled by a growth enhancement, regardless of tree state, suggesting that in water-limited areas like the Mediterranean, it cannot overcome the impact of an increasingly warmer and drier climate on tree growth.

scholarly journals The sensitivity of stand-scale photosynthesis and transpiration to changes in atmospheric CO2 concentration and climate

1999 ◽  
Vol 3 (1) ◽  
pp. 55-69 ◽  
Author(s):  
B. Kruijt ◽  
C. Barton ◽  
A. Rey ◽  
P. G. Jarvis
Keyword(s):  
Water Stress ◽  
Nitrogen Content ◽  
Leaf Area ◽  
Water Use ◽  
N Uptake ◽  
Co2 Concentration ◽  
Picea Sitchensis ◽  
Atmospheric Co2 ◽  
Atmospheric Co2 Concentration ◽  
Needle Longevity

Abstract. The 3-dimensional forest model MAESTRO was used to simulate daily and annual photosynthesis and transpiration fluxes of forest stands and the sensitivity of these fluxes to potential changes in atmospheric CO2 concentration ([CO2]), temperature, water stress and phenology. The effects of possible feed-backs from increased leaf area and limitations to leaf nutrition were simulated by imposing changes in leaf area and nitrogen content. Two different tree species were considered: Picea sitchensis (Bong.) Carr., a conifer with long needle longevity and large leaf area, and Betula pendula Roth., a broad-leaved deciduous species with an open canopy and small leaf area. Canopy photosynthetic production in trees was predicted to increase with atmospheric [CO2] and length of the growing season and to decrease with increased water stress. Associated increases in leaf area increased production further only in the B. pendula canopy, where the original leaf area was relatively small. Assumed limitations in N uptake affected B. pendula more than P. sitchensis. The effect of increased temperature was shown to depend on leaf area and nitrogen content. The different sensitivities of the two species were related to their very different canopy structure. Increased [CO2] reduced transpiration, but larger leaf area, early leaf growth, and higher temperature all led to increased water use. These effects were limited by feedbacks from soil water stress. The simulations suggest that, with the projected climate change, there is some increase in stand annual `water use efficiency', but the actual water losses to the atmosphere may not always decrease.

Whole-plant instantaneous and short-term water-use efficiency in response to soil water content and CO2 concentration

2019 ◽  
Vol 444 (1-2) ◽  
pp. 281-298
Author(s):  
Yonge Zhang ◽  
Xinxiao Yu ◽  
Lihua Chen ◽  
Guodong Jia
Keyword(s):  
Water Use Efficiency ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Water Use ◽  
Co2 Concentration ◽  
Short Term ◽  
Whole Plant ◽  
Use Efficiency

Increased drought and atmospheric CO2 positively impact intrinsic water use efficiency but do not promote tree growth in semi-arid areas of northwestern China

Trees ◽  
2019 ◽  
Vol 33 (3) ◽  
pp. 669-679 ◽  
Author(s):  
Kanglong Lu ◽  
Ning Chen ◽  
Xiaowei Zhang ◽  
Jingru Wang ◽  
Minghao Wang ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Tree Growth ◽  
Atmospheric Co2 ◽  
Northwestern China ◽  
Arid Areas ◽  
Intrinsic Water Use Efficiency ◽  
Use Efficiency ◽  
Semi Arid

The effect of long-term atmospheric CO2 enrichment on the intrinsic water-use efficiency of sour orange trees

Chemosphere ◽  
2003 ◽  
Vol 50 (2) ◽  
pp. 217-222 ◽  
Author(s):  
S.W. Leavitt ◽  
S.B. Idso ◽  
B.A. Kimball ◽  
J.M. Burns ◽  
A. Sinha ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Co2 Enrichment ◽  
Atmospheric Co2 ◽  
Sour Orange ◽  
Intrinsic Water Use Efficiency ◽  
Use Efficiency ◽  
Orange Trees
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