Assessment of aquatic plants evapotranspiration for secondary agriculture drains (case study: Edfina drain, Egypt)

Rashed, A. A.

doi:10.1016/j.ejar.2014.07.001

Cited by 15 publications

(11 citation statements)

References 10 publications

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“…Reference evapotranspiration (ETo) calculated by the FAO Penman -Monteith method, using decision support software -CROPWAT 8.0 developed by FAO (Surendran et al, 2015) 2as follows (Rashed, 2014). ETc = ETo x Kc …………………….…”

Section: Calculation Of Evapotranspiration and Crop Evapotranspiratiomentioning

confidence: 99%

“…Estimated volume of water lost due to open water evapotranspiration of aquatic plants is calculated using the following equation 3as follows (Rashed, 2014).…”

Section: Estimated Water Losses Due To Evapotranspiration Of Water Hymentioning

confidence: 99%

“…Previous results ( Figure 2) show that the highest water hyacinth cover occurred in July 2016. According to Ali and El-Din Khedr (2018) the highest infestation of water hyacinth occurs in the summer due to the availability of weed growth factors that help water weeds explosion (Rashed, 2014), nutrient absorption is thought to occur varies based on season, with greater absorption in summer when temperatures are higher and more favorable for plant growth (Villamagna and Murphy, 2010 Water losses due to water hyacinth evapotranspiration Water resources, which are strongly influenced by the hydrological cycle, play a key role in economic and social development (Falamarzi et al, 2014). Figure 6 shows the results of calculation of reference evapotranspiration (ETo), the highest ETo occurred in October 2014 at 5.60 mm day -1 and the lowest ETo occurred in June 2013 at 3.27 mm day -1 .…”

Section: Areas and Percentages Of Water Hyacinth Using Satellite Imagerymentioning

confidence: 99%

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Estimation of Water Losses Through Evapotranspiration of Water Hyacinth (Eichhornia crassipes)

Sasaqi

Pranoto

Setyono

2019

Caraka Tani J. Sustain. Agric.

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Batujai Reservoir locates in Batujai Village, Praya Barat, Central Lombok, West Nusa Tenggara. It is the primary source of irrigation water supply for agriculture in Central Lombok District with an area of around 3,235 ha. The problem is the bloom of water hyacinth weed (Eichhornia crassipes), which can cause reservoir water loss through evapotranspiration, affecting the amount of water reservoir available for the dry season. The objective was to identify the area of cover and estimate water loss through water hyacinth evapotranspiration for the period 2013 – 2017. This study used a descriptive method by analysis of secondary data which were meteorological data and landsat-8 satellite imagery. Evapotranspiration analyzes use CROPWAT 8.0, monitoring water hyacinth cover using landsat–8 satellite imagery processed using ENVI 5.3 and ArcGIS 10.4 software. The results show that the spatial distribution of water hyacinth can be detected and mapped accurately with an overall classification accuracy of 84.11% – 97.04% using Landsat 8 data, with a kappa coefficient of 0.80 – 0.96. The area of water hyacinth cover ranges from 38,400 m2 – 2,158,500 m2, with a cover area of more than 20%, causing water loss above 8,000 m3 day-1, which occurred in April 2013, April 2015, April 2016, February 2015, May 2014, May 2016 and July 2016, in those months it was seen that the amount of water loss was greater. Therefore, it is needed to suppress the growth of water hyacinth, in maintaining reservoir water storage capacity to support a systems of sustainable agriculture.

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Section: Calculation Of Evapotranspiration and Crop Evapotranspiratiomentioning

confidence: 99%

“…Estimated volume of water lost due to open water evapotranspiration of aquatic plants is calculated using the following equation 3as follows (Rashed, 2014).…”

Section: Estimated Water Losses Due To Evapotranspiration Of Water Hymentioning

confidence: 99%

Section: Areas and Percentages Of Water Hyacinth Using Satellite Imagerymentioning

confidence: 99%

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Estimation of Water Losses Through Evapotranspiration of Water Hyacinth (Eichhornia crassipes)

Sasaqi

Pranoto

Setyono

2019

Caraka Tani J. Sustain. Agric.

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“…Values of crop coefficient (Kc) of aquatic weeds which were used in this research derived from research papers for each Meleha (2005) and Rashed (2014) that conducted on almost similar areas in the climatic conditions of the Rosetta Branch. The monthly average value was used of water hyacinth coefficient (K c ) which has been calculated by Meleha (2005) who estimated the monthly average of crop coefficient (K c ) for water hyacinth of the average value by many empirical formulas were 1.48, 1.54, 1.38, 1.42, 1.96, 2.27, 2.41, 2.31, 2.20, 1.97, 1.62, 1.34 and 1.30 in the months from Nov., 2004 till Nov., 2005 respectively.…”

Section: Crop Coefficient (K C )mentioning

confidence: 99%

“…The monthly average value was used of water hyacinth coefficient (K c ) which has been calculated by Meleha (2005) who estimated the monthly average of crop coefficient (K c ) for water hyacinth of the average value by many empirical formulas were 1.48, 1.54, 1.38, 1.42, 1.96, 2.27, 2.41, 2.31, 2.20, 1.97, 1.62, 1.34 and 1.30 in the months from Nov., 2004 till Nov., 2005 respectively. While, the monthly average was used of Common Reed and Torpedo Grass coefficient which has been calculated by (Rashed, 2014) who estimated the monthly average of crop coefficient (K c ) for each of the Common Reed and Torpedo grass to open water evaporation, values ranged between 1.19-1.33 and 1.25-1.35 mm/d respectively, during months from Nov. 2008 till Aug. 2009. It has been using Common Reed coefficient values that was recorded 1.08, 0.69, 0.60, 1.24, 1.27, 1.28, 1.98, 1.63 and 1.55, while Torpedo grass coefficient values was recorded 1.21, 0.80, 0.56, 1.28, 1.32, 1.32, 1.82, 1.71 and 1.65 for the months same of satellite images were used in this research.…”

Section: Crop Coefficient (K C )mentioning

confidence: 99%

Estimation of water losses through evapotranspiration of aquatic weeds in the Nile River (Case study: Rosetta Branch)

Ali

Khedr

2018

Water Science

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Aquatic weeds management and estimation of water losses from evapotranspiration must be taken into consideration in order to reduce water losses. The objective of this research is estimating the water losses through evapotranspiration of aquatic weeds in the Rosetta Branch in order to identify the quantities of water that could be saved when applying appropriate maintenance programs for aquatic weeds. To achieve the objective of this research, the research team identify areas of infection of the aquatic weeds using field visits, determine its coordinates using GPS and Satellite imagery (Landsat-8) and estimate of water losses through evapotranspiration of aquatic weeds by using the following evapotranspiration equation: ETc = ETo × Kc. The result for estimation of the average annual water losses through evapotranspiration of aquatic weeds in the Rosetta Branch during one year (from December 2015 to November 2016) were 21.3 million m 3 /year, 0.7 million m 3 /year and 1.1 million m 3 /year for water hyacinth, Common Reed and Torpedo grass, respectively.

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Crop coefficients of natural wetlands and riparian vegetation to compute ecosystem evapotranspiration and the water balance

Pereira,

Paredes,

Espírito-Santo

2024

Irrig Sci

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Wetlands, namely the riparian ones, play a major role in landscape and water resources functionalities and provide enormous opportunities for ecosystems services. However, their area at globe scale is continuously decreasing due to appropriation by the riverain communities or by allocation of water resources to other uses, namely irrigation, in prejudice of natural wetlands. Due to the high competition for water, namely for agricultural irrigation, the calculation of the vegetation evapotranspiration (ETc), i.e. the consumptive water use of the wetland ecosystems, is mandatory for determining water supply–demand balance at various scales. Providing for the basin and local levels the reason for this review study on ETc to be presented in an irrigation focused Journal. The review also aims to make available adequate Kc values relative to these ecosystems in an ongoing update of FAO guidelines on evapotranspiration. The review on ETc of natural wetlands focused on its computation adopting the classical FAO method, thus the product of the FAO-PM grass reference ETo by the vegetation specific Kc, i.e., ETc = Kc ETo. This approach is not only the most common in agriculture but is also well used in natural wetlands studies, with Kc values fully related with vegetation ecosystems characteristics. A distinction was made between riparian and non-riparian wetland ecosystems due to differences between main types of water sources and main vegetation types. The Kc values are tabulated through grouping wetlands according to the climate since the variability of Kc with vegetation, soil, and water availability would require data not commonly available from the selected studies. Tabulated values appear to be coherent and appropriate to support field estimation of Kc and ETc for use in wetlands water balance when not measured but weather data may be available to compute the grass reference ETo. ETc and the water balance could then be estimated since they are definitely required to further characterization and monitoring of wetlands, defining measures for their protection, and assessing ecosystems’ services.

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Assessment of aquatic plants evapotranspiration for secondary agriculture drains (case study: Edfina drain, Egypt)

Cited by 15 publications

References 10 publications

Estimation of Water Losses Through Evapotranspiration of Water Hyacinth (Eichhornia crassipes)

Estimation of Water Losses Through Evapotranspiration of Water Hyacinth (Eichhornia crassipes)

Estimation of water losses through evapotranspiration of aquatic weeds in the Nile River (Case study: Rosetta Branch)

Crop coefficients of natural wetlands and riparian vegetation to compute ecosystem evapotranspiration and the water balance

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