Energy and other inputs as constraints on food production
نویسندگان
چکیده
منابع مشابه
Energy and other inputs as constraints on food production.
The production and subsequent processing, packaging and distribution of food cannot be considered in isolation from the rest of the country's economy. The Input-Output Tables for the United Kingdom (Central Statistical Office, 1968) illustrate the complex interdependencies of all its industries and may indeed be used to quantify the importance of other industrial inputs in determining the outpu...
متن کاملEnergy Inputs in Food Crop Production in Developing and Developed Nations
Detailed energy outputs and inputs were assessed for the following crops, cultured in the U.S. and developing countries: corn, wheat, rice, soy, potato, cassava, tomato, citrus and apple. In addition, the labor input for each crop was analyzed.
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That marine ecological systems are tremendously productive of plant and animal life is an established fact. In assessing the potential for food production from the sea, however, marine scientists have produced quite a range of “estimates” of the sea’s productivity. In 1965 Schaefer (1) conservatively estimated that the world fishery production could be increased to 200 million tons “with no rad...
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Are we cutting down tropical forests too rapidly and too extensively? If so, why? Answers to both questions are obscured in some ways by insufficient and unreliable data on the economic worth of forest ecosystem services. It is clear, however, that rapid, excessive cutting of forests can irreversibly and substantively impair ecosystem functions, thereby endangering the flow of several socially ...
متن کاملLand as a constraint on food production.
The purpose of this paper is to consider the extent to which the area and quality of land limit the level of food production in the UK. As the population and its disposable income have increased so has the land area devoted to non-agricultural activities. In addition, the area of tree planting has been enlarged to replace the depleted reserves of forest. Simultaneously a great deal of research,...
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ژورنال
عنوان ژورنال: Proceedings of the Nutrition Society
سال: 1977
ISSN: 0029-6651,1475-2719
DOI: 10.1079/pns19770047