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Measurement of evapotranspiration during sprinkler irrigation using a precision energy budget (Bowen ratio, eddy covariance) methodology
Uddin, J.; Hancock, N.H.; Smith, R.J.; Foley, J.P. - In: Agricultural Water Management 116 (2013) C, pp. 89-100
Eddy covariance (ECV) is a micrometeorological mass transfer method for measuring evapotranspiration (ET) which has … been used successfully for the last decade to measure evapotranspiration from natural and agricultural plant communities …
Persistent link: https://www.econbiz.de/10010594542
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Control of atmospheric fluxes from a pecan orchard by physiology, meteorology, and canopy structure: Modeling and measurement
Gutschick, Vincent P.; Sheng, Zhuping - In: Agricultural Water Management 129 (2013) C, pp. 200-211
We constructed and validated against eddy-covariance data a model of the fluxes of water vapor, sensible heat, CO2, and radiation in a substantially mature pecan orchard (Carya illinoinensis (Wangenh.)K. Koch) in an arid environment near El Paso, TX, USA. The detailed process-based model is...
Persistent link: https://www.econbiz.de/10010702917
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Determination of crop evapotranspiration of table grapes in a semi-arid region of Northwest Mexico using multi-spectral vegetation index
Er-Raki, S.; Rodriguez, J.C.; Garatuza-Payan, J.; … - In: Agricultural Water Management 122 (2013) C, pp. 12-19
Vegetation Index (NDVI) and crop coefficient (Kc) for estimating crop evapotranspiration (ETc) of table grapes vineyards (Vitis … under-estimation of evapotranspiration. …
Persistent link: https://www.econbiz.de/10011047570
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Comparison of six evapotranspiration models for a surface irrigated maize agro-ecosystem in Northern Italy
Gharsallah, O.; Facchi, A.; Gandolfi, C. - In: Agricultural Water Management 130 (2013) C, pp. 119-130
The approaches for the estimation of evapotranspiration (ET) can be classified in “direct” methods, based on the …
Persistent link: https://www.econbiz.de/10011047664
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Evapotranspiration and crop coefficient for sprinkler-irrigated cotton crop in Apodi Plateau semiarid lands of Brazil
Bezerra, Bergson G.; Silva, Bernardo B. da; Bezerra, … - In: Agricultural Water Management 107 (2012) C, pp. 86-93
During the twentieth century, the cotton crop was the main agricultural product in the semiarid regions of Brazil, with over 3.2 million hectares planted. However, due to structural problems, this activity became uncompetitive and economically unfeasible, being virtually wiped out in the...
Persistent link: https://www.econbiz.de/10010576893
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Evaluation of the impact of surface residue cover on single and dual crop coefficient for estimating soybean actual evapotranspiration
Odhiambo, L.O.; Irmak, S. - In: Agricultural Water Management 104 (2012) C, pp. 221-234
Single and dual crop coefficient methods are used in conjunction with grass reference evapotranspiration (ETo) to … estimate actual crop evapotranspiration (ETc). However, the impact of soil surface residue cover on the accuracy of ETc … reduced-tillage (ridge till) on a silt loam soil and irrigated using a subsurface drip irrigation system. Evapotranspiration …
Persistent link: https://www.econbiz.de/10011047617
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Double trouble: The importance of accounting for and defining water entitlements consistent with hydrological realities (Conference title: Water Trading in the MDBC: How well is th...
Young, Mike; McColl, James C. - 2008
When water entitlement and water sharing systems are mis-specified, that is specified in amanner that lacks hydrological integrity, inefficient investment and water use is the result.Using Australia's Murray Darling Basin as an example, this paper attempts to reveal theeconomic consequences of...
Persistent link: https://www.econbiz.de/10009443301
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Necessary and inherent limits to internet surveillance
Wright, Joss - In: Internet Policy Review 2 (2013) 3, pp. 1-11
Information technologies now play a huge role in both personal and institutional life, playing the role of a global communications medium. As our means of interaction increasingly centre on the internet, there is a desire from nation states to exercise control and obtain access to the...
Persistent link: https://www.econbiz.de/10012164299
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A dilemma in the communication of a UAV with its controller
Garnaev, Andrej; Trappe, Wade; Petropulu, Athina - In: International game theory review 22 (2020) 2, pp. 1-15
Persistent link: https://www.econbiz.de/10012582456
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Double trouble: the importance of accounting for and defining water entitlements consistent with hydrological realities
Young, Michael D.; McColl, James C. - In: Australian Journal of Agricultural and Resource Economics 53 (2009) 1
When entitlements to access water in fully allocated river and aquifers are specified in a manner that is inconsistent with the ways that water arrives, flows across and flows through land, inefficient investment and water use is the result. Using Australia’s Murray Darling Basin as an...
Persistent link: https://www.econbiz.de/10011275432