Download or read book Food Needs and U S Agriculture in 1980 written by Earl Orel Heady and published by . This book was released on 1967 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agriculture Into the 1980s written by Economic Development Committee for the Agricultural Industry. Progress Group and published by . This book was released on 1978 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Papers Food needs and U S agriculture in 1980 by E O Heady and L V Mayer written by United States. National Advisory Commission on Food and Fiber and published by . This book was released on 1967 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Patterns and Trends in World Agricultural Land Use written by Francis S. Urban and published by . This book was released on 1984 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extract: Technological change will be essential in increasing crop production to meet the future world food needs because the world's population is increasing at a much faster rate than is the increase in usable agricultural land. Although only about half of the world's estimated 3 billion hectares of arable land is currently used for crop production, the remainder is generally believed to be only marginally productive. Cropland area has actually decreased in some regions of the world. This study measures agricultural land availability and trends and provides specific land constraints to world food production projections.
Download or read book Land Use and Forest Resources in a Changing Environment written by Gordon A. Bradley and published by University of Washington Press. This book was released on 1984 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Land Use Change on Atmospheric CO2 Concentrations written by Virginia H. Dale and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Roger C. Dahlman Environmental Sciences Division U.S. Department of Energy Washington, D.C. The potential for humans to alter Earth's atmosphere has been recognized since the end of the 19th century when Arrhenius estimated that a doubling of atmospheric carbon dioxide could alter the atmospheric radiation balance and raise average global temperature. Today, atmospheric CO concentrations play an important part in the 2 climate-change debate. Sources and sinks of CO associated with land use can be 2 significant determinants of the rate and magnitude of atmospheric CO change. 2 Combustion of fossil fuels and the deforestation associated with land-use change both contribute CO to the atmosphere; in contrast, biological processes on land create 2 potential sinks for the excess CO . Thus, land-use change and associated biological 2 processes become important elements in assessments of future atmospheric CO 2 increase; land-cover properties also affect the Earth's albedo, which is a climate feedback.
Download or read book Ground water Quality Beneath Irrigated Agriculture in the Central High Plains Aquifer 1999 2000 written by and published by . This book was released on 2003 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Land Cover and Land Use Changes in Eastern Europe after the Collapse of the Soviet Union in 1991 written by Garik Gutman and published by Springer. This book was released on 2016-11-14 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work analyzes the effects of one of the most dramatic changes of entire societies that the world has ever witnessed. It explores the collapse of socialist governance and management systems on land cover and land use in various parts of Eastern Europe. As readers will discover, this involved rapid and unprecedented changes such as widespread agricultural abandonment. Changes in the countries of the former Soviet block, former Soviet Union republics, and European Russia are compared and contrasted. Contributing authors cover topics such as the carbon cycle and the environment, effects of institutional changes on urban centers and agriculture, as well as changes in wildlife populations. The volume includes analysis of the drivers of agricultural land abandonment, forest changes in Black Sea region, an extreme drought event of 2010, impacts of fires on air quality and other land-cover/land-use issues in Eastern Europe. Satellite data used were mostly from optical sensors including night lights observations, with both coarse and medium spatial resolution. Ultimately, this work highlights the importance of understanding socioeconomic shocks: that is, those brief periods during which societies change rapidly resulting in significant impact on land use and the environment. Thus it shows that change is often abrupt rather than gradual and thereby much harder to predict. This book is a truly international and interdisciplinary effort, written by a team of scientists from the USA, Europe, and Russia. It will be of interest to a broad range of scientists at all levels within natural and social sciences, including those studying recent and ongoing changes in Europe. In particular, it will appeal to geographers, environmental scientists, remote sensing specialists, social scientists and agricultural scientists.
Download or read book U S Highway 18 151 Verona Wisconsin C T H G to C T H PD Dane County written by and published by . This book was released on 1991 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Land Use Historical Perspectives written by Y. P. Abrol and published by Allied Publishers. This book was released on 2002 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributed articles presented at a workshop.
Download or read book Outlook and Situation Report written by and published by . This book was released on 1984 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remedial Actions at the Former Vitro Chemical Company Site South Salt Lake Salt Lake County Utah written by and published by . This book was released on 1984 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Geological Survey Professional Paper written by and published by . This book was released on 1984 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Airports written by British Library and published by Walter de Gruyter. This book was released on 2012-05-21 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sustainable Agriculture and the Environment in the Humid Tropics written by National Research Council and published by National Academies Press. This book was released on 1993-02-01 with total page 721 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rainforests are rapidly being cleared in the humid tropics to keep pace with food demands, economic needs, and population growth. Without proper management, these forests and other natural resources will be seriously depleted within the next 50 years. Sustainable Agriculture and the Environment in the Humid Tropics provides critically needed direction for developing strategies that both mitigate land degradation, deforestation, and biological resource losses and help the economic status of tropical countries through promotion of sustainable agricultural practices. The book includes: A practical discussion of 12 major land use options for boosting food production and enhancing local economies while protecting the natural resource base. Recommendations for developing technologies needed for sustainable agriculture. A strategy for changing policies that discourage conserving and managing natural resources and biodiversity. Detailed reports on agriculture and deforestation in seven tropical countries.
Download or read book Department of Agriculture Appropriations for 1963 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Agriculture and Related Agencies Appropriations and published by . This book was released on 1962 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Department of Agriculture Appropriations written by United States. Congress. House. Committee on Appropriations and published by . This book was released on 1963 with total page 1166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
