Decadal gross level assessment of green and blue consumptive water use over Indian agro-ecosystems

2021 ◽  
Vol 42 (17) ◽  
pp. 6628-6669
Author(s):  
Indrani Choudhury ◽  
B.K. Bhattacharya ◽  
R. Eswar ◽  
M. Sekhar
Keyword(s):  
Water Use ◽  
Consumptive Water Use ◽  
Consumptive Water

CONSUMPTIVE WATER USE OF RAINFED MAIZE IN NIGERIA

1986 ◽  
Vol 7 (2) ◽  
pp. 128-144 ◽  
Author(s):  
S.O. Ojo ◽  
M. Ijioma ◽  
A.O. Ojo
Keyword(s):  
Water Use ◽  
Consumptive Water Use ◽  
Consumptive Water

scholarly journals Opportunities for saving and reallocating agricultural water to alleviate water scarcity

Water Policy ◽  
2017 ◽  
Vol 19 (5) ◽  
pp. 886-907 ◽  
Author(s):  
Brian D. Richter ◽  
James D. Brown ◽  
Rachel DiBenedetto ◽  
Adrianna Gorsky ◽  
Emily Keenan ◽  
...  
Keyword(s):  
Water Use ◽  
Water Scarcity ◽  
Water Saving ◽  
Internet Survey ◽  
Irrigated Agriculture ◽  
Irrigation Systems ◽  
Water Savings ◽  
Consumptive Water Use ◽  
Water Scarce ◽  
Consumptive Water

As water scarcity worsens globally, there is growing interest in finding ways to reduce water consumption, and for reallocating water savings to other uses including environmental restoration. Because irrigated agriculture is responsible for more than 90% of all consumptive water use in water-scarce regions, much attention is being focused on opportunities to save water on irrigated farms. At the same time, many recent journal articles have expressed concern that claims of water-saving potential in irrigation systems lack technical credibility, or are at least exaggerated, due to failures to properly account for key elements of water budgets such as return flows. Critics have also asserted that opportunities for reallocating irrigation savings to other uses are limited because any freed-up water is taken up by other farmers. A comprehensive literature and internet survey was undertaken to identify well-documented studies of water-saving strategies in irrigated agriculture, as well as a review of case studies in which water savings have been successfully transferred to other uses. Our findings suggest that there is in fact considerable potential to reduce consumptive water use in irrigation systems when proper consideration is given to water budget accounting, and those savings can be beneficially reallocated to other purposes.

Effect of some selected soil properties, moisture content, yield and consumptive water use on two Cassava (TMS 0581 and TME 419) varieties

2019 ◽  
Author(s):  
Christopher O. Akinbile ◽  
Remigius C. Eze ◽  
Habeeb Yusuf ◽  
Babatunde S. Ewulo ◽  
Adeniyi Olayanju
Keyword(s):  
Moisture Content ◽  
Soil Properties ◽  
Water Use ◽  
Particle Density ◽  
Block Design ◽  
Poultry Manure ◽  
Crop Coefficient ◽  
Consumptive Water Use ◽  
Cassava Plant ◽  
Consumptive Water

The increasing demand of Cassava for our dietary needs and shortage experienced going by the burgeoning global population is a cause for concern that require urgent attention. The study therefore considered the effect of some selected soil properties, nutrients, moisture content, yield and consumptive water use (CWU) on two selected Cassava varieties TMS 0581 and TME 419 respectively. The design was a Randomized Complete Block Design (RCBD) of four treatments and three replicates. Treatment A had fertigation, B used poultry manure, C employed NPK, 15-15-15 while D with no treatment was used as control. Soil properties such as Bulk Density (BD), Particle Density (PD), soil classification and nutrients such as Cation Exchange Capacity (CEC), Organic Matter (OM), Nitrogen (N), Potassium (K) and others were determined using standard procedures. Penman-Monteith (PM) model was used in estimating reference evapotranspiration (ETr) while its product with crop coefficient (Kc) produced crop evapotranspiration (ETc). Moisture content was measured at depths 10, 20 and 30 cm respectively while water use efficiency (WUE), irrigation water applied and tuber yield were also determined. The findings of this study showed that all the soil properties were within permissible levels to encourage optimum agronomic development of Cassava plant and the class was entirely a loamy soil which permits well-developed roottuber configuration. Tuber yields varied from 21.96 Kg to 25.13 Kg for TMS 0581 variety while TME 419 had 17.04 Kg to 31.63 Kg in all the treatments. Deficiencies were observed in some of the nutrients which were replenished with the introduction of the fertilizers among the plots. Moisture content at 30 cm depth is suggestive of adequate water availability sufficient enough to encourage proper tuber development for optimum yield while fertigation technique was adjudged the best as it improved Cassava Tuberization and WUE in all the treatments considered.

scholarly journals Effects of Consumptive Water Use on Biodiversity in Wetlands of International Importance

2013 ◽  
Vol 47 (21) ◽  
pp. 12248-12257 ◽  
Author(s):  
Francesca Verones ◽  
Dominik Saner ◽  
Stephan Pfister ◽  
Daniele Baisero ◽  
Carlo Rondinini ◽  
...  
Keyword(s):  
Water Use ◽  
Consumptive Water Use ◽  
International Importance ◽  
Consumptive Water

scholarly journals Development of a Simple Irrigation Scheduling Calendar for Mesilla Valley Pecan Growers

2008 ◽  
Vol 18 (4) ◽  
pp. 714-725 ◽  
Author(s):  
Jeffery C. Kallestad ◽  
John G. Mexal ◽  
Theodore W. Sammis ◽  
Richard Heerema
Keyword(s):  
Soil Moisture ◽  
Water Use ◽  
Sandy Loam ◽  
Irrigation Scheduling ◽  
Time Interval ◽  
Silty Clay ◽  
Climate Data ◽  
Evaporative Demand ◽  
Consumptive Water Use ◽  
Consumptive Water

For farmers to accurately schedule future water delivery for irrigations, a prediction method based on time-series measurements of soil moisture depletion and climate-based indicators of evaporative demand is needed. Yet, numerous reports indicate that field instruments requiring high in-season labor input are not likely to be used by farmers. In New Mexico, pecan (Carya illinoensis) farmers in the Mesilla Valley have been reluctant to adopt new soil-based or climate-based irrigation scheduling technologies. In response to low adoption rates, we have developed a simple, practical irrigation scheduling tool specifically for flood-irrigated pecan production. The information presented in the tool was derived using 14 years of archived climate data and model-simulated consumptive water use. Using this device, farmers can estimate the time interval between their previous and the next irrigation for any date in the growing season, in a range of representative soil types. An accompanying metric for extending irrigation intervals based on field-scale rainfall accumulation was also developed. In modeled simulations, irrigations scheduled with the tool while using the rainfall rule were within 3 days of the model-predicted irrigation dates in silty clay loam and loam soil, and less than 2 days in sandy loam and sand soil. The simulations also indicated that irrigations scheduled with the tool resulted in less than 1% reduction in maximum annual consumptive water use, and the overall averaged soil moisture depletion was 45.14% with an 18.1% cv, relative to a target management allowable depletion of 45%. Our long-term objective is that farmers using this tool will better understand the relationships between seasonal climate variation and irrigation scheduling, and will seek real-time evapotranspiration information currently available from local internet resources.

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