Effects of N and water supply on water use-efficiency of a semiarid grassland in Inner Mongolia

2009 ◽  
Vol 328 (1-2) ◽  
pp. 495-505 ◽  
Author(s):  
Holger Brueck ◽  
Klaus Erdle ◽  
Yingzhi Gao ◽  
Marcus Giese ◽  
Ying Zhao ◽  
...  
Keyword(s):  
Water Supply ◽  
Water Use Efficiency ◽  
Water Use ◽  
Inner Mongolia ◽  
Semiarid Grassland ◽  
Use Efficiency

scholarly journals Water Use Efficiency Current Status Assessment in the Context of WATenERgy CYCLE Project

Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 602
Author(s):  
Stavroula Tsitsifli ◽  
Anastasia Papadopoulou ◽  
Vasilis Kanakoudis ◽  
Konstantinos Gonelas
Keyword(s):  
Water Supply ◽  
Water Use Efficiency ◽  
Water Use ◽  
Methodological Approach ◽  
National Level ◽  
Water Utilities ◽  
Current Status ◽  
Water Supply Systems ◽  
Use Efficiency ◽  
Supply Systems

Water use efficiency is a crucial issue in drinking water utilities as it is connected to environmental and economic consequences. WATenERgy CYCLE project aims at developing a methodological approach towards efficient and effective transnational water and energy resources management in the Balkan–Mediterranean area. The paper presents the results of performance evaluation of the water supply systems of the water utilities involved in the project, both at local and national level. The methodology used in the water balance and performance indicators as well as data on the operational status of the water supply systems. The results showed that Non-Revenue Water is one of the major problems addressed.

Water demand and water use efficiency of winter barley in Hungary

2011 ◽  
Vol 59 (1) ◽  
pp. 13-22
Author(s):  
Z. Varga-Haszonits ◽  
E. Enzsölné Gerencsér ◽  
Z. Lantos ◽  
Z. Varga
Keyword(s):  
Soil Moisture ◽  
Water Supply ◽  
Water Use Efficiency ◽  
Water Use ◽  
Potential Evapotranspiration ◽  
Growth Period ◽  
Winter Barley ◽  
Potential Yield ◽  
Yield Data ◽  
Use Efficiency

The temporal and spatial variability of soil moisture, evapotranspiration and water use were investigated for winter barley. Evaluations were carried out on a database containing meteorological and yield data from 15 stations. The spatial distribution of soil moisture, evapotranspiration and water use efficiency (WUE) was evaluated from 1951 to 2000 and the moisture conditions during the growth period of winter barley were investigated. The water supply was found to be favourable, since the average values of soil moisture remained above the lower limit of favourable water content throughout the growth period, except for September–December and May–June. The actual evapotranspiration tended to be close to the potential evapotranspiration, so the water supplies were favourable throughout the vegetation period. The calculated values of WUE showed an increasing trend from 1960 to 1990, but the lower level of agricultural inputs caused a decline after 1990. The average values of WUE varied between 0.87 and 1.09 g/kg in different counties, with higher values in the northern part of the Great Hungarian Plain. The potential yield of winter barley can be calculated from the maximum value of WUE. Except in the cooler northern and western parts of the country, the potential yield of winter barley, based on the water supply, could exceed 10 t/ha.

scholarly journals Nonlinear responses of ecosystem carbon fluxes and water‐use efficiency to nitrogen addition in Inner Mongolia grassland

2015 ◽  
Vol 30 (3) ◽  
pp. 490-499 ◽  
Author(s):  
Dashuan Tian ◽  
Shuli Niu ◽  
Qingmin Pan ◽  
Tingting Ren ◽  
Shiping Chen ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Inner Mongolia ◽  
Carbon Fluxes ◽  
Nitrogen Addition ◽  
Inner Mongolia Grassland ◽  
Ecosystem Carbon ◽  
Nonlinear Responses ◽  
Use Efficiency ◽  
Ecosystem Carbon Fluxes

Selecting traits to improve the yield and water use efficiency of winter wheat under limited water supply

2020 ◽  
Vol 242 ◽  
pp. 106410
Author(s):  
Yang Lu ◽  
Zongzheng Yan ◽  
Lu Li ◽  
Congshuai Gao ◽  
Liwei Shao
Keyword(s):  
Winter Wheat ◽  
Water Supply ◽  
Water Use Efficiency ◽  
Water Use ◽  
Use Efficiency

Morpho-structural and physiological performance of Sangiovese and Montepulciano cvv. (Vitis vinifera) under non-limiting water supply conditions

2011 ◽  
Vol 38 (11) ◽  
pp. 888 ◽  
Author(s):  
Alberto Palliotti ◽  
Stefano Poni ◽  
Oriana Silvestroni ◽  
Sergio Tombesi ◽  
Fabio Bernizzoni
Keyword(s):  
Water Supply ◽  
Vitis Vinifera ◽  
Water Use Efficiency ◽  
Water Use ◽  
Vessel Diameter ◽  
Soluble Solids ◽  
Vitis Vinifera L ◽  
Berry Skin ◽  
Respiration Activity ◽  
Use Efficiency

Morpho-structural and physiological traits of Sangiovese and Montepulciano varieties (Vitis vinifera L. – two red grapes widely cultivated in Italy), grown outside under non-limiting water supply conditions were evaluated in 2007 and 2008 and results were correlated with yield components and grape composition. The 2-year analysis showed intraspecific differences in canopy characteristics, leaf and shoot properties, photosynthetic ability, water use efficiency, vine yield and grape composition. Compared with Sangiovese, Montepulciano was able to assure a higher whole-canopy seasonal net CO2 exchange rate during the season (+38% in mid morning and +49% in mid afternoon). It also had higher water use efficiency (especially early in the morning and in late afternoon) and a higher vine yield (+16%). Furthermore, total soluble solids (+1.7 °Brix), anthocyanins (+0.44 mg cm–2 berry skin) and phenolic compounds (+0.88 mg cm–2 berry skin) were higher in the grapes. To ensure this performance, Montepulciano vines have to support higher costs of growth and maintenance processes, made possible because of the increased respiration activity of the canopy during the night. We confirmed that vine yield and grape composition is strictly dependent on the seasonal photosynthetic capacity of the canopy. Therefore, Montepulciano should be put in a position to fully realise this substantial photosynthetic potential, by avoiding or reducing environmental stress. Sangiovese is structurally and morpho-physiologically better able to withstand any stress during the summer than Montepulciano. Sangiovese xylem tissue had larger mean vessel density and smaller mean vessel diameter and hydraulic conductance than Montepulciano, holding the hypothesis of less susceptibility to conduit damage.

EFFICIENCY OF THE USE OF WATER BY THE LEAVES OF SOY PLANTS: TRADITIONS AND NEW CRITERIA

2018 ◽  
Vol 1 (11(56)) ◽  
pp. 42-46
Author(s):  
O.A. Harchuk ◽  
A.F. Kirillov ◽  
A.B. Budak
Keyword(s):  
Water Supply ◽  
Water Use Efficiency ◽  
Water Use ◽  
Transpiration Rate ◽  
Field Level ◽  
Photosyn Thesis ◽  
Use Efficiency ◽  
Soybean Plants ◽  
Soybean Leaves ◽  
New Criteria

The aim of the study was to assess the traditional and new criteria for evaluating water use efficiency (WUE) of soybean leaves by comparing different parameters from instantaneous measurements (WUEi) with the WUE at the field level, as well as studying WUEi-parametres in daily dynamics. Studies were performed using photosyn-thesis and transpiration rate monitor PTM-48A to soybean plants (variety Amelina) in pots with sufficient water supply. It was concluded that as close as possible to WUE field value (0,80 g seeds per kg H2O) is the evaluation of the WUEias a ratio of respiration per unit of water transpired. Estimation of leaf WUEiaccording to previously known parameters does not correspond to field level WUE

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