Vegetation of the Earth in Relation to Climate and the Eco-physiological Conditions PDF Download
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Author: Heinrich Walter
Publisher:
ISBN:
Category : Gardening
Languages : en
Pages : 256
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Book Description
Descriptions of kinds of zonal vegetation into which eco-physiological data must fit. Includes chapters on the arctic tundra, boreal coniferous forest, and alpine vegetation zones.
Author: Heinrich Walter
Publisher:
ISBN:
Category : Gardening
Languages : en
Pages : 256
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Book Description
Descriptions of kinds of zonal vegetation into which eco-physiological data must fit. Includes chapters on the arctic tundra, boreal coniferous forest, and alpine vegetation zones.
Author: H. Walter
Publisher:
ISBN:
Category :
Languages : en
Pages : 237
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Book Description
Author: Paul E. Lydolph
Publisher: Government Institutes
ISBN: 9780865981195
Category : Science
Languages : en
Pages : 416
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Book Description
To find more information about Rowman and Littlefield titles, please visit www.rowmanlittlefield.com.
Author: Heinrich Walter
Publisher: Springer Science & Business Media
ISBN: 1468404687
Category : Science
Languages : en
Pages : 295
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Book Description
Phytomass and Primary Production of the Various Vegetational Zones and of the Entire Biosphere The biosphere is that thin layer at the earth's surface in which living organisms exist and biological cycling takes place. It includes the upper horizons of the soil in which plants root, the atmosphere near the ground, (insofar as organisms penetrate this space), and all the surface waters. More than 99% of the earth's biomass is phytomass, to which we shall limit our discussion. Amounts of phytomass are distinctly related to vegeta tional zones. Because accurate determination of phytomass and primary production is difficult, only gross estimates have been available until recently. However, in 1970, Bazilevich et al. published (in Russian) more accurate calculations, based on the rapidly accumulating literature, for the various thermal zones and bioclimatic regions of the earth. These authors calculated mean phyto mass and mean annual primary production for the various regions as dry mass (in tons) per hectare. On the basis of measurements of the areas covered by the individual regions, excluding rivers, lakes, glaciers, and permanent snow, total phytomass and total annual primary production for the various regions were obtained (see table). The sum of these figures is the phytomass and annual production of the land surface of the earth. In addition, the table gives corresponding data for the waters of the earth. The values involved are potential i. e. , they are based on natural vegetation uninfluenced by man.
Author: David John Briggs
Publisher: Rowman & Littlefield
ISBN: 9780847675203
Category : Science
Languages : en
Pages : 570
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Book Description
This primary text, designed for undergraduate courses, provides a modern approach to the fundamentals of physical geography by linking process, form, and effect. The authors explore the natural world as a series of systems and consider the relationship between the different components of each. They examine, in turn, the atmosphere, hydrosphere, lithosphere, and biosphere, providing a thorough discussion of their composition and the ways in which their interaction forms our global environment. Throughout, the authors demonstrate the role of humanity in influencing the physical environment and the ways in which we are affected by our surroundings. Clearly written and lavishly illustrated with maps, drawings, photographs, and charts, Fundamentals of Physical Geography is an ideal text.
Author: Eugene Cittadino
Publisher: Cambridge University Press
ISBN: 9780521524865
Category : Science
Languages : en
Pages : 216
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Book Description
A 1990 account of the botanical reform movement and its pioneering contribution to ecological science.
Author: José Maria Cardoso da Silva
Publisher: Springer
ISBN: 331968339X
Category : Science
Languages : en
Pages : 487
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Book Description
This book provides in-depth information on Caatinga’s geographical boundaries and ecological systems, including plants, insects, fishes, amphibians, reptiles, birds, and mammals. It also discusses the major threats to the region’s socio-ecological systems and includes chapters on climate change and fast and large-scale land-use changes, as well as slow and small-scale changes, also known as chronic human disturbances. Subsequent chapters address sustainable agriculture, conservation systems, and sustainable development. Lastly, the book proposes 10 major actions that could enable the transformation of Caatinga into a place where people and nature can thrive together. “I consider this book an excellent example of how scientists worldwide can mobilize their efforts to propose sound solutions for one of the biggest challenges of modern times, i.e., how to protect the world’s natural ecosystems while improving human well-being. I am sure this book will inspire more research and conservation action in the region and perhaps encourage other groups of scientists to produce similar syntheses about their regions.” Russell Mittermeier, Ph.D. Executive Vice-Chair, Conservation International
Author: Gauthreaux
Publisher: Elsevier
ISBN: 0080918336
Category : Technology & Engineering
Languages : en
Pages : 402
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Book Description
Animal Migration, Orientation, and Navigation presents the various aspects of animal migration, including the evolution of migration, climatic and meteorological influences, and bioenergetics. This book discusses the physiological control, sensory systems, orientation and navigation, and biological clocks and phenology aspects of animal migration. Organized into five chapters, this book begins with an overview of the migration strategies of animals in the context of a space continuum. This text then explains the influence of short- and long-term climatic cycles on the spectrum of migratory patterns in nature. Other chapters consider the energetic requirements of different migration strategies and the energy stores of the migrants. This book discusses as well the physiological basis of animal migration, with emphasis on endocrinal findings on the timing and energetic aspects of different migration strategies. The final chapter deals with the mechanisms used in direction finding by migrating animals. This book is a valuable resource for biologists and ecologists.
Author: David N. Sen
Publisher: Springer Science & Business Media
ISBN: 940098037X
Category : Science
Languages : en
Pages : 273
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Book Description
The ecology of halophytes has a wide scope of interest, appealing to people of many disciplines. It covers widely different fields such as climatology, soil science, phytogeography, adaptive biology and agriculture. Ecologists study these specialized plants in relation to estuarine ecosystems, biology of dominant genera, germination ecology, water relations, salt secretion, and senescence. The present volume is divided into three parts and attempts to elucidate new aspects of the problems faced by this special group of plants. It tries to give the reader an overall view of saline environments and the ecology of plants found therein. In the first chapter of part one Zahran presents the halophytic vegetation of Egypt, which includes the inland and the littoral (Red Sea and Mediterranean Sea) salt marshes. The plants he describes have been classified as succulents, excretives and cumulatives, according to their adaptability to saline soils and according to their different life-forms. The second chapter throws light on the estuarine ecosystem ofIndia. The estuaries are described by Joshi, and Bhosale as being rich in diversity of mangrove species. Making varied use of estuarine ecosystems is not only possible, but also essential because they are the meeting point between terrestrial and marine life.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 402
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Book Description
