Author: Tennessee Valley AuthorityPublisher:
ISBN:
Category : Electric utilities
Languages : en
Pages : 136
Book Description
Power Annual Report
Author: Tennessee Valley AuthorityPublisher:
ISBN:
Category : Electric utilities
Languages : en
Pages : 136
Book Description
Wetland Plants
Author: Julie K. CronkPublisher: CRC Press
ISBN: 1420032925
Category : Nature
Languages : en
Pages : 484
Book Description
A detailed account of the biology and ecology of vascular wetland plants and their applications in wetland plant science, Wetland Plants: Biology and Ecology presents a synthesis of wetland plant studies and reviews from biology, physiology, evolution, genetics, community and population ecology, environmental science, and engineering. It provides a
Plant Aging
Author: Roberto RodríguezPublisher: Springer Science & Business Media
ISBN: 1468457608
Category : Science
Languages : en
Pages : 425
Book Description
For many, the terms aging, maturation and senescence are synonymous and used interchangeably, but they should not be. Whereas senescence represents an endogenously controlled degenerative programme leading to plant or organ death, genetiC aging encompasses a wide array of passive degenerative genetiC processes driven primarily by exogenous factors (Leopold, 1975). Aging is therefore considered a consequence of genetiC lesions that accumulate over time, but by themselves do not necessarily cause death. These lesions are probably made more severe by the increase in size and complexity in trees and their attendant physiology. Thus while the withering of flower petals following pollination can be considered senescence, the loss of viability of stored seeds more clearly represents aging (Norden, 1988). The very recent book "Senescence and Aging in Plants" does not discuss trees, the most dominant group of plants on the earth. Yet both angiospermic and gymnospermic trees also undergo the above phenomena but less is known about them. Do woody plants senesce or do they just age? What is phase change? Is this synonymous with maturation? While it is now becoming recognized that there is no programmed senescence in trees, senescence of their parts, even in gymnosperms (e. g. , needles of temperate conifers las t an average of 3. 5 years), is common; but aging is a readily acknowledged phenomenon. In theory, at least, in the absence of any programmed senescence trees should -live forever, but in practice they do not.
Enewetak Radiological Survey
Author: Publisher:
ISBN:
Category : Health risk assessment
Languages : en
Pages : 790
Book Description
Western Contractor
Author: Ecology of Central European Forests
Author: Christoph LeuschnerPublisher: Springer
ISBN: 3319430424
Category : Science
Languages : en
Pages : 998
Book Description
This handbook in two volumes synthesises our knowledge about the ecology of Central Europe’s plant cover with its 7000-yr history of human impact, covering Germany, Poland, the Netherlands, Belgium, Luxembourg, Switzerland, Austria, Czech Republic and Slovakia. Based on a thorough literature review with 5500 cited references and nearly 1000 figures and tables, the two books review in 26 chapters all major natural and man-made vegetation types with their climatic and edaphic influences, the structure and dynamics of their communities, the ecophysiology of important plant species, and key aspects of ecosystem functioning. Volume I deals with the forests and scrub vegetation and analyses the ecology of Central Europe’s tree flora, whilst Volume II is dedicated to the non-forest vegetation covering mires, grasslands, heaths, alpine habitats and urban vegetation. The consequences of over-use, pollution and recent climate change over the last century are explored and conservation issues addressed.
Apollo Mission Control
Author: Manfred "Dutch" von EhrenfriedPublisher: Springer
ISBN: 3319766848
Category : Technology & Engineering
Languages : en
Pages : 301
Book Description
This book describes the history of this now iconic room which represents America’s space program during the Gemini, Apollo, Skylab, Apollo-Soyuz and early Space Shuttle eras. It is now a National Historic Landmark and is being restored to a level which represents the day the flight control teams walked out after the last lunar landing missions. The book is dedicated to the estimated 3,000 men and women who supported the flights and tells the story from their perspective. It describes the rooms of people supporting this control center; those rooms of engineers, analysts and scientists most people never knew about. Some called it a “shrine” and some called it a “cathedral.” Now it will be restored to its former glory and soon thousands will be able to view the place where America flew to the moon.
Notification to EPA of Hazardous Waste Activities
Author: Phytolith Systematics
Author: Susan C. MulhollandPublisher: Springer Science & Business Media
ISBN: 1489911553
Category : Social Science
Languages : en
Pages : 378
Book Description
This volume is the first in theAdvances in Archaeological and Museum Science series sponsored by the Society for Archaeological Sciences. The purpose of this biennial series is to provide summaries of advances in closely defined topics in archaeometry, archaeological science, environmental archaeology, preservation technology and museum conservation. The Society for Archaeological Sciences (SAS) exists to encourage interdisci plinary collaboration between archaeologists and colleagues in the natural and physical sciences. SAS members are drawn from many disciplinary fields. However, they all share a common belief that physical science techniques and methods constitute an essential component of archaeological field and laboratory studies. The General Editors wish to express their appreciation to Renee S. Kra and Frances D. Moskovitz of Radiocarbon for their special expertise and assistance in the production of this volume. We also appreciate the contribution of the two reviewers for their excellent comments and suggestions. The General Editor responsible for undertaking the development of this volume was R. E. Taylor.
Author: