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Author : Stephen Thomas Trudgill
Release : 1977
Genre : Mineral cycle (Biogeochemistry).
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Soil and Vegetation Systems by : Stephen Thomas Trudgill
Download or read book Soil and Vegetation Systems written by Stephen Thomas Trudgill. This book was released on 1977. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Heinrich Walter
Release : 2012-12-06
Genre : Science
Kind : eBook
Book Rating : 687/5 ( reviews)
Book Synopsis Vegetation of the Earth and Ecological Systems of the Geo-biosphere by : Heinrich Walter
Download or read book Vegetation of the Earth and Ecological Systems of the Geo-biosphere written by Heinrich Walter. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Norman Uphoff
Release : 2006-03-03
Genre : Science
Kind : eBook
Book Rating : 11X/5 ( reviews)
Book Synopsis Biological Approaches to Sustainable Soil Systems by : Norman Uphoff
Download or read book Biological Approaches to Sustainable Soil Systems written by Norman Uphoff. This book was released on 2006-03-03. Available in PDF, EPUB and Kindle. Book excerpt: Global agriculture is now at the crossroads. The Green Revolution of the last century is losing momentum. Rates of growth in food production are now declining, with land and water resources becoming scarcer, while world population continues to grow. We need to continue to identify and share the knowledge that will support successful and sustainable
Author : Rolf Nieder
Release : 2003-09-15
Genre : Technology & Engineering
Kind : eBook
Book Rating : 155/5 ( reviews)
Book Synopsis Handbook of Processes and Modeling in the Soil-Plant System by : Rolf Nieder
Download or read book Handbook of Processes and Modeling in the Soil-Plant System written by Rolf Nieder. This book was released on 2003-09-15. Available in PDF, EPUB and Kindle. Book excerpt: Learn to create and use simulation models—the most reliable and cost-effective tools for predicting real-world results! The Handbook of Processes and Modeling in the Soil-Plant System is the first book to present a holistic view of the processes within the soil-plant-atmosphere continuum. Unlike other publications, which tend to be more specialized, this book covers nearly all of the processes in the soil-plant system, including the fundamental processes of soil formation, degradation, and the dynamics of water and matter. It also illustrates how simulation modeling can be used to understand and forecast multiple interactions among various processes and predict their environmental impact. This unique volume assembles information that until now was scattered among journals, bulletins, reports, and symposia proceedings to present models that simulate almost all of the processes occurring in the soil-plant system and explores the results that these models are capable of producing. With chapters authored by experts with years of research and teaching experience, the Handbook of Processes and Modeling in the Soil-Plant System examines: physical, chemical, and biological soil processes the soil formation and weathering process and its modeling the impact of radioactive fallout on the soil-plant system soil degradation processes and ways to control them water and matter dynamics in the soil-plant system growth and development of crops at various levels of production the potentials and limitations of using simulation models Students, educators, and professionals alike will find the Handbook of Processes and Modeling in the Soil-Plant System an invaluable reference on the soil-plant-atmosphere system and an ideal tool to help develop an effective decision support system.
Author : John A. Stanturf
Release : 2020-10-24
Genre : Science
Kind : eBook
Book Rating : 942/5 ( reviews)
Book Synopsis Soils and Landscape Restoration by : John A. Stanturf
Download or read book Soils and Landscape Restoration written by John A. Stanturf. This book was released on 2020-10-24. Available in PDF, EPUB and Kindle. Book excerpt: Soils and Landscape Restoration provides a multidisciplinary synthesis on the sustainable management and restoration of soils in various landscapes. The book presents applicable knowledge of above- and below-ground interactions and biome specific realizations along with in-depth investigations of particular soil degradation pathways. It focuses on severely degraded soils (e.g., eroded, salinized, mined) as well as the restoration of wetlands, grasslands and forests. The book addresses the need to bring together current perspectives on land degradation and restoration in soil science and restoration ecology to better incorporate soil-based information when restoration plans are formulated. Incudes a chapter on climate change and novel ecosystems, thus collating the perspective of soil scientists and ecologists on this consequential and controversial topic Connects science to international policy and practice Includes summaries at the end of each chapter to elucidate principles and key points
