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Eliades, M.; Bruggeman, A.; Djuma, H.; Christofi, C.; Kuells, C. |
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Title |
Quantifying Evapotranspiration and Drainage Losses in a Semi-Arid Nectarine (Prunus persica var. nucipersica) Field with a Dynamic Crop Coefficient (Kc) Derived from Leaf Area Index Measurements |
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2022 |
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Water |
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14 |
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5 |
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Quantifying evapotranspiration and drainage losses is essential for improving irrigation efficiency. The FAO-56 is the most popular method for computing crop evapotranspiration. There is, however, a need for locally derived crop coefficients (Kc) with a high temporal resolution to reduce errors in the water balance. The aim of this paper is to introduce a dynamic Kc approach, based on Leaf Area Index (LAI) observations, for improving water balance computations. Soil moisture and meteorological data were collected in a terraced nectarine (Prunus persica var. nucipersica) orchard in Cyprus, from 22 March 2019 to 18 November 2021. The Kc was derived as a function of the canopy cover fraction (c), from biweekly in situ LAI measurements. The use of a dynamic Kc resulted in Kc estimates with a bias of 17 mm and a mean absolute error of 0.8 mm. Evapotranspiration (ET) ranged from 41% of the rainfall (P) and irrigation (I) in the wet year (2019) to 57% of P + I in the dry year (2021). Drainage losses from irrigation (DR_I) were 44% of the total irrigation. The irrigation efficiency in the nectarine field could be improved by reducing irrigation amounts and increasing the irrigation frequency. Future studies should focus on improving the dynamic Kc approach by linking LAI field observations with remote sensing observations and by adding ground cover observations. |
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2073-4441 |
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THL @ christoph.kuells @ w14050734 |
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85 |
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Adolph, G.; KÜlls, C.; Willscheid, A. |
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Determination and validation of age structures as an improved measure of hydrological dynamics |
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2007 |
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Geophysical Research Abstracts |
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9 |
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08013 |
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THL @ christoph.kuells @ Adolph2007determination |
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58 |
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Joseph, J.; Külls, C.; Arend, M.; Schaub, M.; Hagedorn, F.; Gessler, A.; Weiler, M. |
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Application of a laser-based spectrometer for continuous in situ measurements of stable isotopes of soil CO2 in calcareous and acidic soils |
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2019 |
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Soil |
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5 |
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1 |
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49-62 |
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Copernicus |
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THL @ christoph.kuells @ Joseph2019application |
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15 |
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Ardelt, G.; Külls, C.; Hellbrück, H. |
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Towards intrinsic molecular communication using isotopic isomerism |
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2018 |
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Open Journal of Internet Of Things (OJIOT) |
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4 |
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1 |
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135-143 |
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RonPub |
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THL @ christoph.kuells @ Ardelt2018towards |
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18 |
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Androvitsanea, A.; Fawzy, M.; Fuchs, J.; Külls, C.; Fahlbusch, H.; Heiden, J. |
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Hydrologische Bedingungen im Heraion von Samos vom 12. bis 8. Jh. v. Chr. und ihre Bedeutung für die wasserbauliche Infrastruktur |
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2018 |
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Environmental Water Engineering |
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1 |
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1 |
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1-21 |
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THL @ christoph.kuells @ Androvitsanea2018hydrologische |
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17 |
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Krüger, N.; Külls, C.; Bruggeman, A.; Eliades, M.; Christophi, C.; Rigas, M.; Eracleous, T. |
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Title |
Groundwater recharge estimates with soil isotope profiles-is there a bias on coarse-grained hillslopes? |
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2020 |
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EGU General Assembly Conference Abstracts |
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9840 |
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THL @ christoph.kuells @ Krueger2020groundwater |
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42 |
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Doulgeris, C.; Tziritis, E.; Pisinaras, V.; Panagopoulos, A.; Külls, C. |
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Prediction of seawater intrusion to coastal aquifers based on non-dimensional diagrams |
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2020 |
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EGU Geophysical Abstracts |
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4073 |
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THL @ christoph.kuells @ Doulgeris2020prediction |
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41 |
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Leibundgut, C.; Maloszewski, P.; Külls, C. |
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Title |
Tracers in Hydrology |
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2009 |
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1. Ed. |
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John Wiley & Sons, Ltd |
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THL @ christoph.kuells @ Leibundgut2009tracers |
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37 |
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Külls, C. |
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Groundwater of the North-Western Kalahari, Namibia: estimation of recharge and quantification of the flow system |
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2001 |
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Hydrogeologie und Umwelt |
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Doctoral thesis |
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Hydrogeologie und Umwelt |
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THL @ christoph.kuells @ Kuells2003groundwater |
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38 |
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Döll, P.; Krol, M.; Fuhr, D.; Gaiser, T.; Herfort, J.; Höynck, S.; Jaeger, A.; Külls, C.; Mendiondo, E.M.; Printz, A.; others |
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Integrated scenarios of regional development in Ceará and Piauí |
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2003 |
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Global Change and Regional Impacts |
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19-41 |
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Springer, Berlin, Heidelberg |
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THL @ christoph.kuells @ Doll2003integrated |
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39 |
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