Download or read book Nutrient Dynamics in an Effluent Dominated Reservoir written by David Gilbert and published by . This book was released on 2001 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutrient Dynamics in Five Off stream Reservoirs in the Lower South Platte River Basin March September 1995 written by Lori A. Sprague and published by . This book was released on 2002 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intermittent Rivers and Ephemeral Streams written by Thibault Datry and published by Academic Press. This book was released on 2017-07-11 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intermittent Rivers and Ephemeral Streams: Ecology and Management takes an internationally broad approach, seeking to compare and contrast findings across multiple continents, climates, flow regimes, and land uses to provide a complete and integrated perspective on the ecology of these ecosystems. Coupled with this, users will find a discussion of management approaches applicable in different regions that are illustrated with relevant case studies. In a readable and technically accurate style, the book utilizes logically framed chapters authored by experts in the field, allowing managers and policymakers to readily grasp ecological concepts and their application to specific situations. Provides up-to-date reviews of research findings and management strategies using international examples Explores themes and parallels across diverse sub-disciplines in ecology and water resource management utilizing a multidisciplinary and integrative approach Reveals the relevance of this scientific understanding to managers and policymakers
Download or read book Nutrient Dynamics in the Arrow Reservoir written by Andreas Matzinger and published by . This book was released on 2000 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lake river Interactions written by Robert H. Kennedy and published by . This book was released on 1984 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Primary Productivity and Nutrient Dynamics of a New York Rural Water Supply Reservoir written by Jill Melcher and published by . This book was released on 1994 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutrient dynamics in a lowland stream impacted by sewage effluent written by W A. House and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecological Bases for Lake and Reservoir Management written by David M. Harper and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ecological Bases for Lake and Reservoir Management provides a state-of-the-art review of the range of ecologically-based techniques necessary for the holistic management of lakes and their catchments. Most of the methods, case studies and national policies reviewed are directed towards management of the largest problem - eutrophication - with the emphasis on the multiple-scale approach needed for successful management and restoration. Case studies come from the USA and ten European countries, and range from single lakes through to lake districts and national inventories. Several essays precede the practical chapters with thought-provoking comments on the political, social and economic climate of water management.
Download or read book Climate written by Igor Linkov and published by Springer. This book was released on 2011-08-31 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rising sea levels and altered weather patterns are expected to significantly alter coastal and inland environments for humans, infrastructure and ecosystems. Potential land-use changes and population increases, coupled with uncertain predictions for sea level rise and storm frequency/intensity represent a significant planning challenge. While efforts to mitigate climate change continue, plans must be made to adapt to the risks that climate change poses to humans, infrastructure, and ecosystems alike. This book addresses integrated environmental assessment and management as part of the nexus of climate change adaptation. Risk analysis has emerged as a useful approach to guide assessment, communication and management of security risks. However, with respect to climate change, an integrated, multi-criteria, multi-hazard, risk-informed decision framework is desirable for evaluating adaptation strategies. The papers in Part 1 summarize societal and political needs for climate change adaptation. Part 2 includes papers summarizing the state of the art in climate change adaptation. Three further parts cover: the process of change in coastal regions, in inland regions, and, finally, the potential challenges to homeland security for national governments. Each of these parts reviews achievements, identifies gaps in current knowledge, and suggests research priorities.
Download or read book Plankton Dynamics in Mesotrophic Highland Reservoirs of the Colorado River System Texas written by Mary Anne Wallace and published by . This book was released on 2011 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various ecological and limnological factors affect plankton dynamics and nutrient processing in clear, hard water subtropical reservoirs where temperature and light usually are conducive to year-round phytoplankton growth. Selected reservoirs in the Highland Lakes system that are currently under a point-source discharge ban, yet are slated for future wastewater discharges, were studied by collecting natural plankton assemblages from the surface-mixed layer at various uplake to near-dam sites in the larger reservoir, Lake Lyndon B. Johnson (LBJ), and from the near-dam sites in the two smaller reservoirs, Inks Lake and Lake Marble Falls. My questions were: how do the nutrients, nitrogen (N) and phosphorus (P), affect phytoplankton growth; and to what extent, seasonally, does zooplankton grazing impact phytoplankton, since phytoplankton mortality is a major loss factor of productivity and biomass from the photic zone? Nutrient bioassays were prepared by initially pre-sieving the water to remove adult zooplankton (>150 micron) and with the following treatments: control (no nutrients added); nitrogen (N); phosphorus (P); and N+P. The monthly bioassays were incubated 5-7 d in a growth chamber set at reservoir temperature and seasonal photoperiods. Phytoplankton growth was measured using daily in vivo fluorescence, and by initial and final extracted chlorophyll (Chl a). Phytoplankton growth rates differed statistically among treatments and generally were negligible in the controls and increased four-fold in the N+P treatments. In the single nutrient treatments (N or P), significant interactions occurred with N-limitation during the warmer, stratified months, and P-limitation during the cooler months when the vertical water column was fully mixed. Phytoplankton mortality due to zooplankton grazing was assessed seasonally with natural zooplankton assemblages that were collected by vertical net tows at the near-dam sites of each reservoir. Once in the lab, a density gradient was prepared by adding progressively higher numbers of zooplankton (grazers) to each treatment (0-3X) and incubated from 24-48 h with the ambient phytoplankton assemblages collected from the near-surface mixed layer at various reservoir sites. The 0X treatment had no grazers added to the water and served as a control to assess the phytoplankton growth rate in the absence of grazers. The 1X treatment had about 7-10 grazers, the 2x had about 20 grazers, and the 3X had about 30 grazers added to the ambient phytoplankton assemblages. The grazing rate was determined by the change in phytoplankton growth between 0 and 3X treatments, with phytoplankton growth rate plotted as a linear function of zooplankton density. N and P were added to all treatments at approximately half the concentration of the [NP] in the nutrient bioassays to allow for phytoplankton growth and to dampen the effects of nutrient regeneration by zooplankton. Phytoplankton mortality due to zooplankton grazing was significant by the reservoir copepod-dominated assemblages. In post-analysis, the phytoplankton growth rates in the controls were compared to the overall grazing rates to determine seasonal patterns of growth versus grazing, by season and site. In spring, phytoplankton growth exceeded zooplankton grazing from all sites except one site, and at all but two sites in the late summer. In the fall, winter, and early summer, zooplankton grazing rates were equal to or exceeded growth rates at most sites. Currently, the Highland Lakes' phytoplankton communities are constrained by both ambient nutrient limitation and zooplankton grazing. This study serves as an important assessment of primary producers and secondary consumers in subtropical reservoirs, prior to potential system eutrophication. The ecological and limnological processes studied here also may be useful as indicators to assess ecosystem health, climate, and anthropogenic changes within the context of aquatic food web ecology, limnology, and biogeochemical cycling.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2008 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wastewater Treatment Plant Dynamics and Management in Constructed and Natural Wetlands written by Jan Vymazal and published by Springer Science & Business Media. This book was released on 2008-04-22 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: At present, constructed wetlands for wastewater treatment are a widely used technology for treatment of various types of wastewaters. The International Water Association (then International Association on Water Pollution Research and Control) recognized wetlands as useful tools for wastewater treatment and est- lished the series of biennial conferences on the use of wetland systems for water pollution control in 1988. In about 1993, we decided to organize a workshop on nutrient cycling in natural and constructed wetlands with the major idea to bring together researchers working on constructed and also natural wetlands. It was not our intention to compete with IWA conferences, but the workshop should rather complement the series on treatment wetlands by IWA. We believed that the exchange of information obtained from natural and constructed wetlands would be beneficial for all participants. And the time showed that we were correct. The first workshop took place in 1995 at T?ebo? in South Bohemia and most of the papers dealt with constructed wetlands. Over the years we extended the topics on natural wetlands (such as role of wetlands in the landscape or wetland restoration and creation) and during the 6th workshop held at T?ebo? from May 30 to June 3, 2006, nearly half of 38 papers presented during the workshop dealt with natural wetlands. This workshop was attended by 39 participants from 19 countries from Europe, Asia, North and South Americas and Australia. The volume contains 29 peer-reviewed papers out of 38 papers which were presented during the workshop.
Download or read book Effects of Impoundment on the Oxygen and Nutrient Dynamics of Sub arctic Reservoirs written by Schallenberg, Marc and published by Montréal : North Wind Information Services. This book was released on 1993 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Impoundment on the Oxygen and Nutrient Dynamics of Sub artic Reservoirs written by Marc Schallenberg and published by . This book was released on 1993 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 1368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Studies at the Savannah River Plant and Immediate Environs written by U.S. Energy Research Development Administration and published by . This book was released on 1975 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
