Author: UnescoPublisher: paris
ISBN:
Category : Science
Languages : en
Pages : 510
Book Description
The Problems of the Arid Zone
Author: UnescoPublisher: paris
ISBN:
Category : Science
Languages : en
Pages : 510
Book Description
The Arid Zones
Author: Kenneth WaltonPublisher: Transaction Publishers
ISBN: 0202369471
Category :
Languages : en
Pages : 178
Book Description
The Arid Zones
Author: Hilton KramerPublisher: Routledge
ISBN: 135148589X
Category : Science
Languages : en
Pages : 175
Book Description
The hot and temperate deserts and their marginal steppe lands comprise one-third of the land surface of the world and are an increasingly critical area for the economic wellbeing of world populations. The remarkable mechanisms of floral, faunal, and human adaptation to the distinct and difficult environment of these arid zones, as well as the potential of modern technology for facilitating adaptation, are described and explained by Walton in the light of our most recent knowledge of the phenomena and processes involved.Beginning with a clarification of the definitions of arid and semi-arid regions and with the delineation of techniques for measuring the degree of aridity in these areas, the author shows that there is wide variation among the arid zones in landscape and climate and that there are numerous local and microclimates within any single arid region. The life cycles of the plants and animals of the arid zones are described and the water resources, including problems of salinity, mineral contamination, and the construction of reservoirs, are examined. Extensive treatment is given to potential agricultural adaptations and to pastoralism as the most widespread response to dry land. A final chapter summarizes attempts at adaptation to prevailing drought and discusses the kinds of future development that the author deems most likely in arid zones.Throughout the book emphasis is placed on specific, detailed analysis, with adequate tables and formulas for in-depth understanding of particular aspects of aridity. Examples from both Old and New Worlds are used to demonstrate the spheres in which progress is being made and to show the mistakes in past and present land use in arid areas. An essential supplement for courses in physical geography, the book will be useful in many area studies and in studies of economic development.
Arid Zone Research
Author: UnescoTechnical Report
Author: Proceedings
Author: Arid Lands
Author: Charles HutchinsonPublisher: Routledge
ISBN: 0429702027
Category : Social Science
Languages : en
Pages : 1456
Book Description
The international conference Arid Lands: Today and Tomorrow drew more than 400 participants from over 3 S countries to Tucson, Arizona, for one week in October of 19 8 S. The diversity of presenters, disciplines and subject matters addressed contributed to an interesting and informative conference. The papers presented in this volume represent the efforts of scientists and other individuals who, through their various disciplines, are addressing the problems of and opportunities presented by the arid lands of the world. A committee of five scientists reviewed for substance. relevance and their contribution to the conference the 284 abstracts that were submitted. They selected 146 for presentation at the conference and of those papers presented, 128 were received for inclusion in the proceedings.
Water Resources and Agricultural Development in the Tropics
Author: Christopher J. BarrowPublisher: Routledge
ISBN: 1317885201
Category : Science
Languages : en
Pages : 369
Book Description
First published in 1988. There are many excellent texts on water supply and irrigation engineering, irrigation economics, agricultural development and the problems which often plague such efforts. Few syntheses of such writings have been made, despite a clear need for them from people interested in water resources and agricultural development: students of geography, economics, development studies and agricultural management, administrators, planners and aid agency staff. This book attempts to provide a broad interdisciplinary introduction for such people.
A Lab for All Seasons
Author: Sharon E. KingslandPublisher: Yale University Press
ISBN: 0300271573
Category : Science
Languages : en
Pages : 400
Book Description
The first book to chronicle how innovation in laboratory designs for botanical research energized the emergence of physiological plant ecology as a vibrant subdiscipline Laboratory innovation since the mid-twentieth century has powered advances in the study of plant adaptation, evolution, and ecosystem function. The phytotron, an integrated complex of controlled-environment greenhouse and laboratory spaces, invented by Frits W. Went in the 1950s, set off a worldwide laboratory movement and transformed the plant sciences. Sharon Kingsland explores this revolution through a comparative study of work in the United States, France, Australia, Israel, the USSR, and Hungary. These advances in botanical research energized physiological plant ecology. Case studies explore the development of phytotron spinoffs such as mobile laboratories, rhizotrons, and ecotrons. Scientific problems include the significance of plant emissions of volatile organic compounds, symbiosis between plants and soil fungi, and the discovery of new pathways for photosynthesis as an adaptation to hot, dry climates. The advancement of knowledge through synthesis is a running theme: linking disciplines, combining laboratory and field research, and moving across ecological scales from leaf to ecosystem. The book also charts the history of modern scientific responses to the emerging crisis of food insecurity in the era of global warming.
Ecology of Halophytes
Author: Robert J. MoldPublisher: Elsevier
ISBN: 0323144373
Category : Science
Languages : en
Pages : 620
Book Description
Ecology of Halophytes documents the proceedings of a symposium on the ecology of halophytes sponsored by the Physiological Ecology section of the Ecological Society of America, and held as a portion of the American Institute of Biological Sciences meetings in August 1972. The book considers the fundamentals of distribution, anatomy, and physiology of halophytes. It provides an overview of the role of the halophyte in ecosystems in various parts of the world. A section on habitat associations of halophytes considers the relation of the plants to other fauna and flora in natural systems. A final section deals with recent applied research related to halophytes and quantification of the impact of man on the ecology of halophytes. This text will be useful for various disciplines working in saline wetlands ecosystems. It is intended to serve land use planners, federal and state natural resources and transportation interests, and real estate developers in providing a comprehensive summary of the ""state of the art"" in understanding halophytic ecosystems. With a better fundamental knowledge of the system, the above mentioned professionals should be better able to plan activities and uses compatible with the natural halophytic ecosystem and avoid some of the past errors man has made.