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Proceedings
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Wastewater Treatment in Constructed Wetlands with Horizontal Sub-Surface Flow
Wetlands have been used for uncontrolled wastewater disposal for centuries. However, the change in attitude towards wetlands during the 1950s and 1960s caused the minimization of the use of natural wetlands for wastewater treatment (at least in developed countries). Constructed wetlands have been used for wastewater treatment for about forty years. Constructed wetland treatment systems are engineered systems that have been designed and constructed to utilize the natural processes for removal of pollutants. They are designed to take advantage of many of the same processes that occur in natural wetlands, but do so within a more controlled environment. The aim of this book is to summarize the k...
Proceedings for the Eight Biennial Southern Silvicultural Research Conference
Presents the research of 189 investigators studying the patterns & process of managed southern forests through 104 reported studies. These contributions emanate from scientists located at various universities, forestry industries, & public agencies. The conference began with a general session by 5 presenters on Silviculture -- A Pivotal Role in a Changing Profession.Ó The following papers were divided into specific topics: ecosystem management; vegetation management; pest management/natural disturbance; biometrics/economics; site productivity; site impacts; ecophysiology/genetics; regeneration; silvicultural systems; & stand development/intermediate management.
Restoration of Aquatic Ecosystems
Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressedâ€"restorationâ€"is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines: Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.
