Increased biofuel production in the coming decade: to what extent will it affect global freshwater resources?

Hoogeveen, J.; Faurès, Jean‐Marc; Giessen, Nick van de

doi:10.1002/ird.479

Cited by 46 publications

(42 citation statements)

References 14 publications

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“…Then the specific impact on available resources in a river basin according to the agrosystem (irrigated or not) concerned by bio-fuels in each country can be analysed. A recent FAO study proposes such an approach including the ratio of water for bio-fuels to the overall water demand for agriculture (Hoogeveen et al, 2009). Summarised results, not much different from those of previous studies (De Fraiture, 2008), are presented in Table III according to the methodology defined by the authors: world production of ethanol is expected to grow from 77 billion litres in 2008 to 127 billion litres in 2017 and is expected to represent by this date 7.6% of fuel consumption.…”

Section: Competition For Watermentioning

confidence: 97%

“…Compared to the total water demand for agriculture (2660 km 3 in 2000), the share of bio-fuels is expected to increase from 1 to 1.8% (Hoogeveen et al, 2009). This shows on the one hand that the production of ethanol, a bio-fuel only partially produced under irrigation, remains a small part of agricultural production, and on the other that it makes good use of the rainfall as it remains mostly rainfed with a 21% irrigation rate, largely below the 40% irrigation rate for food production.…”

Section: Competition For Watermentioning

confidence: 99%

“…Table IV. Some data on the relation between water for ethanol and for agriculture (Hoogeveen et al, 2009) Four contributions to the debate on the possible impacts of bio-energy production With respect to the possible impacts of bio-energy production, the following four recommendations are considered to be relevant to the debate:…”

Section: Environmental and Social Impacts Specific To Bio-fuelsmentioning

confidence: 99%

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Role of water management for global food production and poverty alleviation

Schultz

Tardieu

Vidal³

2009

Irrigation and Drainage

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In the coming 25-30 years global food production will have to be doubled in order to maintain food security at the global level. With respect to this to a certain extent the advantage is that food prices have increased over the past seven to eight years, and especially during the past two years. This may put farmers who are able to sell at least a certain part of their harvest in a better position, provided that the increase in production costs is at a lower level. On the other hand it puts the poor people in the cities of the emerging and least developed countries in an increasingly complicated situation as it will require more of them to remain able to purchase their food. In this paper we give a summarised overview of the role of water management for global food production and poverty alleviation. It turns out that to maintain food security in the near and medium-term future a substantially larger increase in production will be required than continuation of the present trend. While this is quite an effort, one may expect that at least for the near future the costs will remain at the present high level and that they may even increase further. Copyright RÉ SUMÉ D'ici 25 à 30 ans la production alimentaire mondiale devra doubler afin de maintenir la sécurité alimentaire au niveau mondial. Cet objectif est, dans une certaine mesure, facilité par l'augmentation des prix des produits alimentaires depuis sept à huit ans, en particulier au cours des deux dernières années. Cette situation est favorable à ceux des agriculteurs qui sont en mesure de vendre au moins une partie de leur récolte, à condition que l'augmentation des coûts de production reste plus faible que celle des prix. Mais c'est aussi une menace pour les pauvres des villes des pays émergents et les moins avancés car cela leur demande plus d'efforts pour acheter leur nourriture. Dans cet article nous donnons une vue d'ensemble du rôle de la gestion de l'eau pour la production alimentaire mondiale et la lutte contre la pauvreté. Il apparait que, pour maintenir la sécurité alimentaire à court et moyen terme, une croissance de la production est nécessaire, substantiellement plus importante que la croissance actuelle. Compte tenu de cet effort important, on doit s'attendre à ce que, au moins pour le proche avenir, les coûts restent au niveau élevé actuel et même continuent encore à augmenter.

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Section: Competition For Watermentioning

confidence: 97%

Section: Competition For Watermentioning

confidence: 99%

Section: Environmental and Social Impacts Specific To Bio-fuelsmentioning

confidence: 99%

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Role of water management for global food production and poverty alleviation

Schultz

Tardieu

Vidal³

2009

Irrigation and Drainage

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“…Indeed, despite the extensive work to date seeking to better understand the land use implications of biofuels, no attempt has been made to examine the role of irrigation in biofuel-induced cropland expansion. Nevertheless, some studies [26][27][28] have examined water implications of producing biofuels at regional and global levels. This paper expands the capability of the GTAP modeling framework, which has been extensively used in land use assessments of biofuels, to disaggregate irrigation activities.…”

Section: Introductionmentioning

confidence: 99%

The role of irrigation in determining the global land use impacts of biofuels

2013

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Background: Recent studies have evaluated the land use consequences of biofuel programs and the associated carbon fluxes. However, all of these studies have effectively ignored the distinction between rainfed and irrigated lands and neglected the facts that irrigated croplands typically have much higher yields than their rainfed counterparts in the same region and that expansion in irrigated crops are limited in some regions due to water scarcity and irrigation constraint. This paper shows that these omissions introduce systematic biases in the measurement of biofuel-induced land use change emissions.

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“…It is a largely carbon-free and stable source of (and way to store) energy, though release of methane gas may occur depending on the context, and in some cases susceptibility to drought can become a problem. Hydropower reservoirs provides storage which Source: Hoogeveen et al (2009) can also support the deployment of wind and solar energy in integrated systems. However, depending on climate, the technology used and their surface area, hydropower reservoirs can have significant evaporative losses.…”

mentioning

confidence: 99%

Land-Sparing Opportunities for Solar Energy Development in Agricultural Landscapes: A Case Study of the Great Central Valley, CA, United States

Hoffacker

Allen

Hernandez

2017

Environ. Sci. Technol.

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Land-cover change from energy development, including solar energy, presents trade-offs for land used for the production of food and the conservation of ecosystems. Solar energy plays a critical role in contributing to the alternative energy mix to mitigate climate change and meet policy milestones; however, the extent that solar energy development on nonconventional surfaces can mitigate land scarcity is understudied. Here, we evaluate the land sparing potential of solar energy development across four nonconventional land-cover types: the built environment, salt-affected land, contaminated land, and water reservoirs (as floatovoltaics), within the Great Central Valley (CV, CA), a globally significant agricultural region where land for food production, urban development, and conservation collide. Furthermore, we calculate the technical potential (TWh year–1) of these land sparing sites and test the degree to which projected electricity needs for the state of California can be met therein. In total, the CV encompasses 15% of CA, 8415 km2 of which was identified as potentially land-sparing for solar energy development. These areas comprise a capacity-based energy potential of at least 17 348 TWh year–1 for photovoltaic (PV) and 2213 TWh year–1 for concentrating solar power (CSP). Accounting for technology efficiencies, this exceeds California’s 2025 projected electricity demands up to 13 and 2 times for PV and CSP, respectively. Our study underscores the potential of strategic renewable energy siting to mitigate environmental trade-offs typically coupled with energy sprawl in agricultural landscapes.

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Increased biofuel production in the coming decade: to what extent will it affect global freshwater resources?

Cited by 46 publications

References 14 publications

Role of water management for global food production and poverty alleviation

Role of water management for global food production and poverty alleviation

The role of irrigation in determining the global land use impacts of biofuels

Land-Sparing Opportunities for Solar Energy Development in Agricultural Landscapes: A Case Study of the Great Central Valley, CA, United States

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