Bibliografías temáticas / Seawater irrigation

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Literatura académica sobre el tema "Seawater irrigation"

Autor: Grafiati

Publicado: 10 de marzo de 2023

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Artículos de revistas sobre el tema "Seawater irrigation"

Aznar-Sánchez, José, Luis Belmonte-Ureña, Juan Velasco-Muñoz y Diego Valera. "Aquifer Sustainability and the Use of Desalinated Seawater for Greenhouse Irrigation in the Campo de Níjar, Southeast Spain". International Journal of Environmental Research and Public Health 16, n.º 5 (12 de marzo de 2019): 898. http://dx.doi.org/10.3390/ijerph16050898.

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In the Campo de Níjar (southeast Spain), an intensive horticulture model under plastic has been developed based on the use of groundwater. For many years, aquifers have been overexploited, almost generating an environmental collapse. The construction of a desalination plant was planned to improve this situation and to achieve sustainable aquifer management. However, the aquifer is still being overexploited, since farmers scarcely use desalinated seawater for irrigation. In this paper, farmers irrigating with desalinated seawater are characterized, since they contribute to aquifer sustainability. The study aimed to identify the variables which condition the use of this water resource, as well as the kinds of incentives that encourage this option. For this purpose, a survey was undertaken within a sample of 110 farmers. A cluster analysis and a binary logistic regression were employed. The results from the cluster analysis allowed the characterization of farmers who use desalinated seawater for irrigation. Furthermore, the regression model showed the variables that determine a more intensive use of this irrigation source, such as crop diversification, availability of different water resources and the conductivity of aquifer water available for irrigation. The incentives promoting the use of desalinated seawater for irrigation that most encourage farmers are the implementation of tax relief, price reductions and the obligation to install rainwater collection systems.

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Liu, Menglong, Meng Yu, Yuxin Yao, Heng Zhai, Meiling Tang, Zhen Gao y Yuanpeng Du. "Effect of Seawater Irrigation on the Sugars, Organic Acids, and Volatiles in ‘Reliance’ Grape". Horticulturae 8, n.º 3 (15 de marzo de 2022): 248. http://dx.doi.org/10.3390/horticulturae8030248.

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Ongoing climate change in recent decades exacerbated the decline in agricultural water use, and seawater irrigation could feasibly alleviate the shortage of water resources, which restricts viticulture in some countries. However, studies on the effects of seawater irrigation on grape volatiles are limited. Herein, ‘Reliance’ grapevines were irrigated with diluted seawater (10% concentrations) in the field since the pea-size berry stage (S1), stage EL 32 (S2), and the pre-veraison period (S3) every seven days. Results showed irrigation with seawater significantly increased the sugar content and decreased the organic acids when compared with the control berries. Seawater irrigation did not induce secondary soil salinization, and it enhanced the volatiles in the fatty acid and isoprene pathways without affecting the amino acid pathway aroma. More terpenes were found in seawater-treated berries, including citronellol, β-myrcene, α-terpineol, and trans-rose oxide. Gene profiling by RT-qPCR analysis revealed that VvLOXA could be the primary gene in C6 volatile biosynthesis altered by the seawater. Moreover, seawater irrigation during the pea-size period had the best effect on fruit quality. This work adds to our understanding of the effect of seawater irrigation on grape aroma quality and provides a sufficient basis for the utilization of seawater in vineyards.

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Lyra, Aikaterini, Athanasios Loukas y Pantelis Sidiropoulos. "Impacts of irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality of the Almyros Basin, Greece". Water Supply 21, n.º 6 (2 de abril de 2021): 2748–59. http://dx.doi.org/10.2166/ws.2021.097.

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Abstract Irrigation and nitrate fertilization scenarios were combined and simulated for crop water irrigation demands and nitrogen applications based on experiments on crop cultivation practices. Two irrigation practices (deficit irrigation and rainfed conditions) were applied to the main crop types of the Almyros Basin, a coastal basin located in Thessaly, Greece. The Almyros groundwater system suffers from progressive water balance deficit, nitrate contamination and seawater intrusion due to groundwater abstractions for agricultural irrigation to cover crop water demands in the dry season. The impacts of the irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality were simulated using an Integrated Modelling System consisting of models of surface hydrology (UTHBAL), groundwater hydrology (MODFLOW), crop growth/nitrate leaching (REPIC), contaminant transport (MT3DMS), and seawater intrusion (SEAWAT), for the historical period of 1991–2018. The results of the scenarios were evaluated with the indicators of Crop Water Productivity (CWP) for crop yields and irrigation water, Partial Factor Productivity (PFP) for Nitrogen Use Efficiency, and Economic Water Productivity (EWP) for the gross profits of the irrigation water.

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Martinez-Alvarez, Victoriano, Asher Bar-Tal, Francisco Javier Diaz Peña y Jose F. Maestre-Valero. "Desalination of Seawater for Agricultural Irrigation". Water 12, n.º 6 (16 de junio de 2020): 1712. http://dx.doi.org/10.3390/w12061712.

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Food security concerns, climate change impacts, and increased pressure on conventional water resources have encouraged the agricultural use of nonconventional water resources in the last decade. As a result, desalinated seawater (DSW) has already consolidated its position as an alternative source to increase the supply for crop irrigation in Spain and Israel, where farmers’ acceptance is progressively on the rise. The first experiences in these regions highlighted that DSW agricultural use involves new agronomic, economic, and environmental challenges which require innovative research approaches and imply novel water management strategies. In this Special Issue, eight high-quality papers which present current research trials and study cases, covering a wide range of topics that are relevant when irrigating with DSW, have been selected. The papers came from the three regions of the world that currently have a massive agricultural DSW supply: Southeastern Spain, Israel, and the Canary Islands.

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Taşan, Mehmet, Yusuf Demir y Sevda Taşan. "Groundwater quality assessment using principal component analysis and hierarchical cluster analysis in Alaçam, Turkey". Water Supply 22, n.º 3 (17 de noviembre de 2021): 3431–47. http://dx.doi.org/10.2166/ws.2021.390.

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Abstract This study assessed groundwater quality in Alaçam, where irrigations are performed solely with groundwaters and samples were taken from 35 groundwater wells at pre and post irrigation seasons in 2014. Samples were analyzed for 18 water quality parameters. SAR, RSC and %Na values were calculated to examine the suitability of groundwater for irrigation. Hierarchical cluster analysis and principal component analysis were used to assess the groundwater quality parameters. The average EC value of groundwater in the pre-irrigation period was 1.21 dS/m and 1.30 dS/m after irrigation in the study area. It was determined that there were problems in two wells pre-irrigation and one well post-irrigation in terms of RSC, while there was no problem in the wells in terms of SAR. Piper diagram and cluster analysis showed that most groundwaters had CaHCO3 type water characteristics and only 3% had NaCl- as the predominant type. Seawater intrusion was identified as the primary factor influencing groundwater quality. Multivariate statistical analyses to evaluate polluting sources revealed that groundwater quality is affected by seawater intrusion, ion exchange, mineral dissolution and anthropogenic factors. The use of multivariate statistical methods and geographic information systems to manage water resources will be beneficial for both planners and decision-makers.

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Ntoulas, Nikolaos y Ioannis Varsamos. "Performance of Two Seashore Paspalum (Paspalum vaginatum Sw.) Varieties Growing in Shallow Green Roof Substrate Depths and Irrigated with Seawater". Agronomy 11, n.º 2 (29 de enero de 2021): 250. http://dx.doi.org/10.3390/agronomy11020250.

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The continuing decline in global drinking water reserves necessitates finding alternative water sources for turfgrass irrigation, especially in southern semi-arid Mediterranean countries. The aim of the present study was to evaluate the potential of using seawater for irrigating two varieties of seashore paspalum (Paspalum vaginatum Sw.), “Marina” and “Platinum ΤΕ”, growing in shallow green roof substrates, and to determine their recuperative capacity after the termination of the salt stress period. The greenhouse study comprised of 48 lysimeters equipped with extensive green roof layering. Treatments included: (i) two substrate depths (7.5 cm or 15 cm) and (ii) three seawater irrigation regimes (7 mm, 15 mm, or 45 mm every two days). Measurements included the determination of green turf cover (GTC) as well as the leaching fraction (LF) and leachate electrical conductivity (ECL) draining from the lysimeters. It was found that during the 46-d salt stress period, none of the seawater irrigation regimes managed to maintain acceptable GTC levels for both seashore paspalum varieties. Increasing the green roof substrate depth from 7.5 cm to 15 cm resulted in GTC improvement. During the recovery period, the use of potable water as irrigation source improved GTC levels. After 40 d the recovery was complete since GTC exceeded 90% in all treatments for both varieties. Regression curves correlating GTC response to ECL can be used to estimate the leaching requirements of turfgrasses grown in shallow green roof systems when irrigated with saline water.

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Hu, Yuanhong y David Lindo-Atichati. "Experimental equations of seawater salinity and desalination capacity to assess seawater irrigation". Science of The Total Environment 651 (febrero de 2019): 807–12. http://dx.doi.org/10.1016/j.scitotenv.2018.09.221.

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Maestre-Valero, Jose F., Victoriano Martínez-Alvarez, Francisco J. Jódar-Conesa, Jose A. Acosta, Bernardo Martin-Gorriz, Juan M. Robles, Juan G. Pérez-Pérez y Josefa M. Navarro. "Short-Term Response of Young Mandarin Trees to Desalinated Seawater Irrigation". Water 12, n.º 1 (4 de enero de 2020): 159. http://dx.doi.org/10.3390/w12010159.

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Water deficit and increasing pressure on water resources in semi-arid regions has led to the spread of irrigation with non-conventional water resources, such as desalinated seawater (DSW). The few existent studies to date, mainly carried out in Israel and Spain, have shown that suitable management of irrigation with DSW must be performed to avoid agronomic problems and reductions in crop productivity and fruit quality in the mid-long term. To the best of our knowledge, in the case of citrus, fruit production, and quality, information on the effects of DSW irrigation is not available. In this study, we evaluated the short-term agronomic and economic effects of irrigating a mandarin orchard during two crop cycles (2017–2019) with (i) fresh water (FW), (ii) desalinated seawater (DSW), and (iii) a mix of water composed of 50% FW and 50% DSW. Stem water potential (Ψs < −1 MPa) and gas exchange parameters (net photosynthesis; A > 6.5 µmol/m2/s and stomatal conductance; gs > 65 mmol/m2/s) indicated that trees were well irrigated throughout the experiment. The concentration of Na+ and B3+ in the DSW always exceeded the maximum thresholds for irrigation water proposed in the literature for citrus, and the concentration of Na+ in the leaves exceeded the maximum threshold in summer 2018. Nonetheless, symptoms of toxicity were not observed. Significant differences among treatments were not observed for Ψstem, A, gs, Na+, Cl−, and B3+ in leaves (except in the summer months), yield components, fruit quality, or the economic assessment. The lack of such differences was explained by the large standard deviations caused by the youth of the trees, with figures that on occasion could represent more than 100% of the mean value. These results may justify the agronomic and economic viability of the irrigation of young trees with DSW in the short-term, but further research, considering the effects on adult trees in the long term is still needed.

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Pereira, C. S., I. Lopes, I. Abrantes, J. P. Sousa y S. Chelinho. "Salinization effects on coastal ecosystems: a terrestrial model ecosystem approach". Philosophical Transactions of the Royal Society B: Biological Sciences 374, n.º 1764 (3 de diciembre de 2018): 20180251. http://dx.doi.org/10.1098/rstb.2018.0251.

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In coastal areas, intrusion/irrigation with seawater can threaten biodiversity along with crop yields, and the leaching of salts from areas affected by these processes can increase the salinity of water bodies nearby. The aims of this study were to evaluate the effects of salinization on coastal soil ecosystems due to saline intrusion/irrigation. Terrestrial model ecosystems were used to simulate two soil salinization scenarios: (i) seawater intrusion and irrigation with distilled water and (ii) seawater intrusion and irrigation with saline water. Three sampling periods were established: T0—after acclimation period; T1—salinization effects; and T2—populations' recovery. In each sampling period, the abundance of nematodes, enchytraeids, springtails, mites and earthworms, and plant biomass were measured. Immediate negative effects on enchytraeid abundance were detected, especially at the higher level of saltwater via intrusion+irrigation. Eight weeks after the cessation of saline irrigation, the abundance of enchytraeids fully recovered, and some delayed effects were observed in earthworm abundance and plant biomass, especially at the higher soil conductivity level. The observed low capacity of soil to retain salts suggests that, particularly at high soil conductivities, nearby freshwater bodies can also be endangered. Under saline conditions similar to the ones assayed, survival of some soil communities can be threatened, leading to the loss of biodiversity. This article is part of the theme issue ‘Salt in freshwaters: causes, ecological consequences and future prospects’.

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Ong, Poh Yin y Zalena Abdul Aziz. "Seawater as Renewable Energy in Air Conditioning and Plumbing Systems for Coastal Development". International Journal for Innovation Education and Research 9, n.º 9 (1 de septiembre de 2021): 541–54. http://dx.doi.org/10.31686/ijier.vol9.iss9.3394.

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Seawater is deemed as renewable energy and supplemental water source in coastal development. Utilizing seawater resources in air conditioning and plumbing system involves implementation of innovative technology such as seawater air conditioning (SWAC), seawater heat pump (SWHP), landscape irrigation system, potable water and greywater recycling. The research aims to demonstrate seawater usage as water efficiency option to reduce energy consumption, save freshwater and environment. The research had adopted systematic literature review (SLR) method to analyze the application of seawater building air conditioning and plumbing system on current publications and papers, and conclude with summary of benefits and challenges.

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Más fuentes

Tesis sobre el tema "Seawater irrigation"

ATZORI, GIULIA. "Seawater use in agriculture: a possible answer to reduce agricultural products' water footprint". Doctoral thesis, 2017. http://hdl.handle.net/2158/1082218.

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Agriculture is at the center of global efforts of adaptation to climate change because of two main reasons: it is essential for our food supply and it depends directly on natural resources, which are inextricably linked to climate. Available freshwater represents about 1% of water on Earth, yet food production requires on average 70% of such a small freshwater share, reaching up to 90% in the Middle-East and North Africa (MENA) regions. Furthermore, a remarkable increase in food production is forecast because of the growing population, increasing even further the human pressure on the water resource. On the other hand, seawater represents 97% of total water on the planet, and its specific composition constitutes a very well balanced ionic environment for plants: with the exception of its very high chloride content, seawater is rich in all nutritive elements needed by plants, including the necessary trace elements and micro-organisms, living or dead. As production is still competitive by replacing a part of freshwater with seawater, its use in agriculture can represent an answer to limit the use of freshwater and, in the meanwhile, to exploit seawater as a nutrient supply for plants growth. New sustainable agricultural systems are in fact necessary to adapt to current or expected climate changes, minimizing their negative effects and possibly taking advantage of the opportunities created. Accordingly, saline agriculture can represent a climate change adaptation strategy.

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Capítulos de libros sobre el tema "Seawater irrigation"

Sleimi, Noomène y Chedly Abdelly. "Growth and mineral nutrition of some halophytes under seawater irrigation". En Tasks for vegetation science, 403–10. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-0067-2_41.

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Lieth, Helmut y Armin Lieth. "Seawater irrigation studies in the United Arab Emirates — an introduction to the Al Ain Conference". En Towards the rational use of high salinity tolerant plants, 1–10. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1858-3_1.

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Harrouni, M. C., S. Daoud y H. W. Koyro. "Effect of seawater irrigation on biomass production and ion composition of seven halophytic species in Morocco". En Cash Crop Halophytes: Recent Studies, 59–70. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0211-9_6.

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Böer, Benno, M. Ajmal Khan, Hans-Werner Koyro y Kenneth B. Marcum. "Prospects of Environmentally Friendly Farms for Food Security in Hot and Dry Coastal Areas Based on Seawater Irrigation and Wasteproducts – An Inspirational Proposal". En Sabkha Ecosystems, 1–10. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-27093-7_1.

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"Seawater and Seawater- Blended Irrigation Water". En Turfgrass and Landscape Irrigation Water Quality, 143–62. CRC Press, 2008. http://dx.doi.org/10.1201/9781420081947-13.

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"Seawater and Seawater- Blended Irrigation Water". En Turfgrass and Landscape Irrigation Water Quality, 121–40. CRC Press, 2008. http://dx.doi.org/10.1201/9781420081947.ch7.

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Daghari, Issam. "Desalination and Agriculture". En Pathways and Challenges for Efficient Desalination. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.100197.

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In arid countries like Tunisia, the need to find new sources of water for irrigation has become imminent. Desalination of seawater can be an alternative to irrigation. Water desalination is a process that makes it possible to obtain freshwater (drinking water or, more rarely, due to the cost, usable for irrigation) from brackish or saltwater (seawater in particular). In this article, we take a look at the leading food companies specializing in desalination of irrigation around the world and the prospects for the solar energy desalination potential for irrigation in Tunisia. We have noticed that several companies invest money to desalinate water for agricultural purposes. However, the cost of a cubic meter of water sometimes remains high to go forward with this new technology.

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Daghari, Issam. "Desalination and Agriculture". En Pathways and Challenges for Efficient Desalination. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.100197.

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Martínez-Alvarez, Victoriano, Manuel J. González-Ortega, Bernardo Martin-Gorriz, Mariano Soto-García y Jose F. Maestre-Valero. "Seawater desalination for crop irrigation—Current status and perspectives". En Emerging Technologies for Sustainable Desalination Handbook, 461–92. Elsevier, 2018. http://dx.doi.org/10.1016/b978-0-12-815818-0.00014-x.

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Janani, E. Srie Vidhya y A. Rehash Rushmi Pavitra. "Cost Effective Smart Farming With FARS-Based Underwater Wireless Sensor Networks". En Handbook of Research on Implementation and Deployment of IoT Projects in Smart Cities, 296–316. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-9199-3.ch018.

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Smart farming is a key to develop sustainable agriculture, involving a wide range of information and communication technologies comprising machinery, equipment, and sensors at different levels. Seawater, which is available in huge volumes across the planet, should find its optimal way through irrigation purposes. On the other hand, underwater wireless sensor networks (UWSNs) finds its way actively in current researches where sensors are deployed for examining discrete activities such as tactical surveillance, ocean monitoring, offshore analysis, and instrument observing. All these activities are based on a radically new type of sensors deployed in ocean for data collection and communication. A lightweight Hydro probe II sensor quantifies the soil moisture and water flow level at an acknowledged wavelength. The freshwater absorption repository system (FARS) is matured based on the mechanics of UWSNs comprised of SBE 39 and pressure sensor for analyzing atmospheric pressure and temperature. This necessitates further exploration of FARS to complement smart farming. Discrete routing protocols have been designed for data collection in both compatible and divergent networks. Clustering is an effective approach to increase energy efficient data transmission, which is crucial for underwater networks. Furthermore, the chapter attempts to facilitate seawater irrigation to the farm lands through reverse osmosis (RO) process. Also, the proposed irrigation pattern exploits residual water from the RO process which is identified to be one among the suitable growing conditions for salicornia seeds and mangrove trees. Ultimately, the cost-effective technology-enabled irrigation methodology suggested offers farm-related services through mobile phones that increase flexibility across the overall smart farming framework.

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Actas de conferencias sobre el tema "Seawater irrigation"

Grubert, Emily, Carey W. King y Michael E. Webber. "Water for Biomass-Based Energy on Maui, Hawaii". En ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63199.

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Biomass-based energy has characteristics that could help Maui Island meet multiple long-term goals, including decreasing reliance on oil for electricity and transportation fuels, increasing use of local resources that do not need to be shipped long distances, and diversifying the island economy beyond tourism by preserving agriculture. Biomass can be used for liquid fuel production and for electricity production. On Maui, sugarcane has been grown at plantation scale for over a century. Accordingly, sugarcane-derived ethanol and combustible sugarcane bagasse have long been of interest as energy sources for the island. State and county level focus on increasing renewable energy utilization on Maui have renewed study of potential crops and available land, with a special emphasis on sugarcane. However, there is some concern about the water requirements associated with biomass-based energy. A primary motivation for using local, renewable energy sources is that Maui is an island with limited resources, fresh water among them: thus, exploring ways to increase energy sustainability without compromising water availability is of interest to many. This work examines the water needs associated with growing sugarcane for ethanol and combustible biomass on Maui Island. Virtually all sugarcane on Maui is irrigated because soil and sunlight resources do not generally coincide with natural precipitation patterns. Growing sugarcane for energy represents a large water demand that is limiting under certain development scenarios on Maui, such as a scenario where environmental streamflows are highly prioritized. By comparing the irrigation demand of Maui’s currently grown sugarcane with published figures for ethanol yield from cane, this work finds that 700 to 1,500 gallons (gal) of irrigation water are needed per gallon of sugarcane-based ethanol (from fermentable sugars and fiber; 0.7 to 1.5 cubic meters, m3, per liter, L). More water is needed for processing. However, combustible waste streams could provide additional energy return per unit of water. This paper discusses how water demand for sugarcane-based energy interacts with other island water demands, given that about 37,000 acres (150 km2) of sugarcane land are potentially available for bioenergy production. Though seawater cannot be successfully directly used for irrigation, sugarcane can tolerate some salinity and other contamination, so this paper also considers brackish water and treated wastewater — for which there is little other demand — as potential irrigation resources. Notably, the range of tolerable water quality expands significantly when sugarcane is not intended for human ingestion or when biomass yield, not sugar content, is targeted (as for cellulosic ethanol or combustible biomass production).

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