Willow coppice5/15/2023 In addition, since many of these crops are annuals, they require large energy inputs and fertilizer for establishment, growth and management, and thus in the end result in minimal energy gains. In particular, the use of these crops for bioenergy competes directly with their use as food. However, using food crops as a source of bioenergy raises serious issues related to food supply and costs, and consequently has been under increasing criticism from the scientific community and society. Most are traditional agricultural crops and are easy to introduce at the farm level since they do not require particularly cutting-edge technological equipment. These energy crops have the advantage of being relatively easy to grow. These crops may also be used to produce biogas, composed principally of methane and carbon dioxide produced by anaerobic digestion of biomass. For example, the starch in the grains of maize ( Zea mays L.), wheat (Triticum aestivum L.) and sorghum ( Sorghum bicolor (L.) Moench) can be converted to sugars and then to ethanol by traditional fermentation methods for use in transportation and other fuels ( e.g. Cereals and starch crops, whose main economical use is for food and fodder, can also be transformed to produce biofuels. Biodiesel is produced by chemically reacting a vegetable oil with an alcohol such as methanol or ethanol, a process called transesterification. Today, these crops primarily provide feedstock for biodiesel. Oilseed crops have long been grown in rotation with wheat and barley to produce oil for human, animal or industrial use. These crops can be divided into four main categories ( Table 1). Our analysis focuses on agricultural biofuel crops that can be grown in temperate regions. maize, sugar cane etc.), agricultural and forestry by-products (straws, stalks, sawdust, etc.) or from specifically-conceived fuel crops. īiofuels constitute a very broad category of materials that can be derived from sources including municipal by-products, food crops ( e.g. In addition, when properly managed, bioenergy can enhance both agricultural and rural development by increasing agricultural productivity, creating new opportunities for revenue and employment, and improving access to modern energy services in rural areas, both in developed and developing countries. On the other hand, biofuels from biomass grown on degraded and abandoned agricultural lands planted with perennials do not have a negative effect on carbon emissions. Converting forests, peatlands, or grasslands to production of food-crop based biofuels may release up to 400 times more CO 2 than the annual greenhouse gas (GHG) reductions that these biofuels would provide by displacing fossil fuels. Contrary to fossil fuels, bioenergy does not necessarily result in a net long-term increase in atmospheric greenhouse gases, particularly when production methods take this concern into account. bioenergy), either directly or through transformation, is one of the most promising alternative sources of sustainable energy. It does not store any personal data.The production of energy by burning biomass ( i.e. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is used to store the user consent for the cookies in the category "Other. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly.
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