Download or read book Preliminary Study of Phenological Temperature Requirements of a Few Varieties of Wheat Grown in the Northern Great Plains Region and in Some Agro climatically Analogous Areas in the Eastern Hemisphere Based on Wheat Phenology and Weather Records of Montana North Dakota Nebraska Wyoming and Some Areas of the USSR and Japan written by Michael Y. Nuttonson and published by . This book was released on 1966 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phenological Temperature Requirements of Some Winter Wheat Vari e ties Grown in the Southeastern Atlantic Region of the United States and in Several of Its Latitudinally Analogous Areas of the Eastern and Southern Hemispheres of Seasonally Similar Thermal Conditions written by Michael Y. Nuttonson and published by . This book was released on 1966 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Catalogue written by American Geographical Society of New York and published by . This book was released on 1972 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Union Catalog written by and published by . This book was released on 1973 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes entries for maps and atlases.
Download or read book Meteorological and Geoastrophysical Abstracts written by and published by . This book was released on 1967 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The National Union Catalogs 1963 written by and published by . This book was released on 1964 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The National union catalog 1968 1972 written by and published by . This book was released on 1973 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Agricultural Library Catalog written by National Agricultural Library (U.S.) and published by . This book was released on 1974 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Book Publishing Record Cumulative 1950 1977 written by R.R. Bowker Company and published by R. R. Bowker. This book was released on 1978 with total page 1436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Book Publishing Record Cumulative 1950 1977 Non Dewey decimal classified titles written by R.R. Bowker Company. Department of Bibliography and published by . This book was released on 1978 with total page 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Book Publishing Record written by and published by R. R. Bowker. This book was released on 1977-03-31 with total page 1448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here's quick access to more than 490,000 titles published from 1970 to 1984 arranged in Dewey sequence with sections for Adult and Juvenile Fiction. Author and Title indexes are included, and a Subject Guide correlates primary subjects with Dewey and LC classification numbers. These cumulative records are available in three separate sets.
Download or read book American Book Publishing Record Cumulative 1950 1977 written by R.R. Bowker Company. Department of Bibliography and published by . This book was released on 1978 with total page 1434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agriculture in Semi Arid Environments written by A.E. Hall and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: The semi-arid zones of the world are fragile ecosystems which are being sub stantially modified by the activities of mankind. Increasing human populations have resulted in greater demands on semi-arid zones for providing human susten ance and the possibility that this may enhance desertification is a grave concern. These zones are harsh habitats for humans. The famines that resulted from drought during the late 1960's and the 1970's in the African Sahel illustrated the unreliability of present agricultural systems in this zone. Large fluctuations in ag ricultural production have occurred in semi-arid zones of Australia, North Ameri ca, and the Soviet Union due to periodic droughts, even though considerable ag ricultural technology has been devoted to agricultural development in these zones. The challenge to mankind is to manage these different semi-arid zones so that pro ductivity is increased and stabilized, and environmental deterioration is decreased. Irrigation can be used to increase and stabilize agricultural production in semi-arid zones as discussed in Volume 5 of this series, Arid Zone Irrigation. The present volume, Agriculture in Semi-Arid Environments, focuses on dryland farming in semi-arid zones, and is relevant to the large areas of the world where rainfall is limiting and where water is not available for irrigation. This volume is designed to assist agricultural development in these areas and consists of reviews and analyses of available information by scientists working in Africa, Australia, and at the U ni versity of California.
Download or read book Climate and Conservation written by Jodi A. Hilty and published by Island Press. This book was released on 2012-05-29 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate and Conservation presents case studies from around the world of leading-edge projects focused on climate change adaptation-regional-scale endeavors where scientists, managers, and practitioners are working to protect biodiversity by protecting landscapes and seascapes in response to threats posed by climate change. The book begins with an introductory section that frames the issues and takes a systematic look at planning for climate change adaptation. The nineteen chapters that follow examine particular case studies in every part of the world, including landscapes and seascapes from equatorial, temperate, montane, polar, and marine and freshwater regions. Projects profiled range from North American grasslands to boreal forests to coral reefs to Alpine freshwater environments. Chapter authors have extensive experience in their respective regions and are actively engaged in working on climate-related issues. The result is a collection of geographical case studies that allows for effective cross-comparison while at the same time recognizing the uniqueness of each situation and locale. Climate and Conservation offers readers tangible, place-based examples of projects designed to protect large landscapes as a means of conserving biodiversity in the face of the looming threat of global climate change. It informs readers of how a diverse set of conservation actors have been responding to climate change at a scale that matches the problem, and is an essential contribution for anyone involved with large-scale biodiversity conservation.
Download or read book PRAIRIEMAP a GIS Database for Prairie Grassland Management in Western North America written by and published by . This book was released on 2003 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The PRAIRIEMAP web site (http://prairiemap.wr.usgs.gov) contains links to partners, documentation of the data, and a directory of GIS data that can be downloaded.
Download or read book Phenology An Integrative Environmental Science written by Mark D. Schwartz and published by Springer Science & Business Media. This book was released on 2011-04-28 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phenology is the study of plant and animal life cycle events, which are triggered by environmental changes, especially temperature. Wide ranges of phenomena are included, from first openings of leaf and flower buds, to insect hatchings and return of birds. Each one gives a ready measure of the environment as viewed by the associated organism. Thus, phenological events are ideal indicators of the impact of local and global changes in weather and climate on the earth's biosphere. Assessing our changing world is a complex task that requires close cooperation from experts in biology, climatology, ecology, geography, oceanography, remote sensing and other areas. This book is a synthesis of current phenological knowledge, designed as a primer on the field for global change and general scientists, students and interested members of the public. With contributions from a diverse group of over fifty phenological experts, covering data collection, current research, methods and applications, it demonstrates the accomplishments and potential of phenology as an integrative environmental science.
Download or read book Plant Associations of Region Two written by Barry C. Johnston and published by . This book was released on 1987 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
