Author: Wayne T. SwankPublisher:
ISBN:
Category : Biogeochemical cycles
Languages : en
Pages : 76
Book Description
The Seasonal and Annual Flux of Cations for Forested Ecosystems in the Appalachian Highlands
Author: Wayne T. SwankPublisher:
ISBN:
Category : Biogeochemical cycles
Languages : en
Pages : 76
Book Description
Clean Coastal Waters
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309069483
Category : Science
Languages : en
Pages : 422
Book Description
Environmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and scientists predict worsening problems in the years ahead. Clean Coastal Waters explains technical aspects of nutrient over-enrichment and proposes both immediate local action by coastal managers and a longer-term national strategy incorporating policy design, classification of affected sites, law and regulation, coordination, and communication. Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and other cases, the book explains how nutrients work in the environment, why nitrogen is important, how enrichment turns into over-enrichment, and why some environments are especially susceptible. Economic as well as ecological impacts are examined. In addressing abatement strategies, the committee discusses the importance of monitoring sites, developing useful models of over-enrichment, and setting water quality goals. The book also reviews voluntary programs, mandatory controls, tax incentives, and other policy options for reducing the flow of nutrients from agricultural operations and other sources.
Selected Water Resources Abstracts
Author: General Technical Report NC.
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 458
Book Description
Bulletin
Author: Ecology and Management of Central Hardwood Forests
Author: Ray R. HicksPublisher: John Wiley & Sons
ISBN: 9780471137580
Category : Nature
Languages : en
Pages : 436
Book Description
A comprehensive guide to effective hardwood forest management Extending 235,000 square miles from New York to Georgia and fromVirginia to Missouri, the Central Hardwoods Region harbors the mostextensive concentration of deciduous hardwoods in the world. Asharvests in the Pacific Northwest decline and timber prices rise,the maturing stands of mixed species in this central U.S. regionare a rich and valuable resource that is increasingly vulnerable toexploitation. This timely book examines all of the key ecological,social, and economic management considerations essential to utilizeand sustain these vital woodlands effectively. First, it develops the background necessary to understand whatmakes the hardwood eco-system function, with a thorough examinationof the physiography, geology, soils, and climate of the region anda historical overview of its evolution and development frompre-European settlement to the present. Then, species by species,the book details the silvical characteristics of 34 important treespecies. Next, it offers expert recommendations for effectiveforest treatment and management, from specific concerns such astimber production, pollution, and financial planning to broaderissues, including the role of the natural resource manager and thebiological potential of the entire region. Generously supplemented with graphs and photos, Ecology andManagement of Central Hardwood Forests is important reading forforesters, natural resource managers, regional planners,environmental scientists, governmental officials--everyone with astake in the future of this critical living resource.
Long-Term Response of a Forest Watershed Ecosystem
Author: Wayne T. SwankPublisher: Oxford University Press
ISBN: 0195370155
Category : Nature
Languages : en
Pages : 274
Book Description
A long-term study of the effects of clearcutting on forest and stream ecosystems.
Eighth Workshop on Seedling Physiology and Growth Problems in Oak Plantings
Author: Bulletin - West Virginia University Agricultural and Forestry Experiment Station
Author: West Virginia University. Agricultural and Forestry Experiment StationPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 40
Book Description
Research Paper NE.
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 268
Book Description