Hydrologic Effects from Urbanization of Forested Watersheds in the Northeast PDF Download
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Author: Howard William Lull Publisher: ISBN: Category : Forests and forestry Languages : en Pages : 38
Book Description
Urbanization of forest areas tends to reduce interception, reduce infiltration and increase overland flow, reduce soil-moisture storage, reduce evapotranspiration, increase runoff, increase peak flows, and reduce water quality. annual maximum peak flows, annual hydrologic responses, and annual runoff were found (from actural streamflow records) to increase with progressive urbanization. the percentage of summer rainfall that appeared as runoff and the hydrologic responses were greater for partially urbanized watersheds than for mostly forested ones.
Author: Howard William Lull Publisher: ISBN: Category : Forests and forestry Languages : en Pages : 38
Book Description
Urbanization of forest areas tends to reduce interception, reduce infiltration and increase overland flow, reduce soil-moisture storage, reduce evapotranspiration, increase runoff, increase peak flows, and reduce water quality. annual maximum peak flows, annual hydrologic responses, and annual runoff were found (from actural streamflow records) to increase with progressive urbanization. the percentage of summer rainfall that appeared as runoff and the hydrologic responses were greater for partially urbanized watersheds than for mostly forested ones.
Author: David N. Laband Publisher: John Wiley & Sons ISBN: 0891186158 Category : Technology & Engineering Languages : en Pages : 352
Book Description
What is the urban–rural interface? Is it a visual phenomenon, a place where country gives way to neighborhoods and shopping areas in a startling way? Is it a simple factor of population density? There is nothing simple about the urban–rural interface—editors David Laband, Graeme Lockaby, and Wayne Zipperer present the broad spectrum of interdisciplinary complexities at play. Organized into three sections on changing ecosystems, changing human dimensions, and the dynamic integration of human and natural systems, this book is a must read for anyone who works in the real world, where natural and human systems are joined. This is the new sustainability science, an emerging discipline that integrates social and economic values with the physical, chemical, and ecological functions of ecosystems. The goal is optimal management, since our human impact is often significant and far-reaching in both space and time.
Author: National Research Council Publisher: National Academies Press ISBN: 0309121086 Category : Science Languages : en Pages : 181
Book Description
Of all the outputs of forests, water may be the most important. Streamflow from forests provides two-thirds of the nation's clean water supply. Removing forest cover accelerates the rate that precipitation becomes streamflow; therefore, in some areas, cutting trees causes a temporary increase in the volume of water flowing downstream. This effect has spurred political pressure to cut trees to increase water supply, especially in western states where population is rising. However, cutting trees for water gains is not sustainable: increases in flow rate and volume are typically short-lived, and the practice can ultimately degrade water quality and increase vulnerability to flooding. Forest hydrology, the study of how water flows through forests, can help illuminate the connections between forests and water, but it must advance if it is to deal with today's complexities, including climate change, wildfires, and changing patterns of development and ownership. This book identifies actions that scientists, forest and water managers, and citizens can take to help sustain water resources from forests.
Author: Avril L. de la Cretaz Publisher: CRC Press ISBN: 9781420008722 Category : Science Languages : en Pages : 344
Book Description
Filling a long-standing need for a desk reference that synthesizes current research, Land Use Effects on Streamflow and Water Quality in the Northeastern United States reviews and discusses the impact of forest management, agriculture, and urbanization. The book provides a gateway to the diverse scientific literature that is urgently needed to understand and solve ubiquitous watershed management problems. The authors use an in-depth approach that focuses on the science behind sound management principles and practices. The book begins with a summary of the scientific principles and processes that define and govern the interactions between activities on land and conditions in streams, lakes, and estuaries. Building on these principles, later chapters progress from basic science to small-scale, controlled field experiments to landscape-scale studies and their watershed management implications. This nested format parallels the development of watershed management projects and solutions. The deliberate integration of land use history, ecology, hydrology, chemistry, and resource management avoids the artificial separation of inter-related watershed characteristics and tracks causes and effects over realistic time scales. The authors present the hydrologic and water quality principles on which to construct management plans for water supply watersheds across a wide range of sizes, configurations, and time scales. Rigorously reviewed by a distinguished panel of scientists and watershed managers, the book benefits from their collective experience across the full range of watershed science and management. It provides a diverse audience with the opportunity to update and expand their knowledge in critical areas of watershed science and management.
Author: Howard William Lull
Author: Howard William Lull
Author: Howard William Lull
Author: Vijay P. Singh
Author: William E. Sopper
Author: David N. Laband
Author: Luna Bergere Leopold
Author: Northeastern Forest Experiment Station (Radnor, Pa.)
Author: National Research Council
Author: Avril L. de la Cretaz
Author: