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The Effect Of Hydrologic Pulses On Nitrogen Biogeochemistry In Created Riparian Wetlands In Midwestern Usa
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Book Synopsis The Effect of Hydrologic Pulses on Nitrogen Biogeochemistry in Created Riparian Wetlands in Midwestern USA by : Maria Elizabeth Hernandez
Download or read book The Effect of Hydrologic Pulses on Nitrogen Biogeochemistry in Created Riparian Wetlands in Midwestern USA written by Maria Elizabeth Hernandez and published by . This book was released on 2006 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The effect of hydrologic conditions on nitrogen biogeochemistry was investigated in two identical 1-ha surface-flow created riverine wetlands in Columbus, Ohio, USA. These wetlands, created in 1993-1994, are fed with water from Olentangy River. For two years (2003-2004), both wetlands experienced seasonal (winter-spring) controlled hydrologic flood pulses followed by one year (2005) in which they received a steady flow rate of water. Nitrogen gas flux measurements were made in plots distributed along a transverse gradient (edge plots and high marsh plots with alternate wet and dry conditions, and low marsh plots and open water plots with permanent flooding). Highest average N2O fluxes were observed in high marsh plots followed by edge plots, open water plots, and low marsh plots. In permanently flooded plots without vegetation, nitrous oxide fluxes were low, regardless of flood pulse conditions. N2O fluxes were higher in plots with vegetation than in plots without vegetation only when plots were inundated. Denitrification in all plots was significantly correlated with soil temperature and was significantly correlated with the nitrate concentration in the inflow surface water in the growing season in permanently flooded zones. Highest mean denitrification rates were observed in the low marsh and open water zones followed by high marsh and edge zones. In permanently flooded areas, denitrification rates were significantly higher near the inflow than near the outflow. Denitrification appeared to be nitrogen limited in low marsh, high marsh and edge plots, but both carbon and nitrogen limited in open water. NO2− + NO3− mass retention was similar under pulsing and steady flow conditions. Total nitrogen (TN) retention was lower under pulsing than steady flow conditions as a result of an export of organic nitrogen occurred under pulsing conditions. Aboveground biomass productivity in the pulsing year was significantly lower than in the steady-flow flow. Belowground biomass productivities were similar in both years. Nitrogen accumulation in plants represented 54- 44% of total nitrogen removed. Denitrification accounted for 8-12 % of nitrate removed. Less than 1% of the total nitrogen removed was converted to N2O, regardless of hydrologic conditions.
Book Synopsis Memoirs of an Environmental Science Professor by : William Mitsch
Download or read book Memoirs of an Environmental Science Professor written by William Mitsch and published by CRC Press. This book was released on 2023-07-31 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows, through real and current examples from the field of environmental and wetland science, that personal and professional success depends on persistence and a refusal to compromise on "doing the right thing" which for Professor Mitsch meant saving some of the world’s most important ecosystems, as well as educating future researchers and the general public along the way. Case studies described in this book illustrate that persistence pays off especially when the cause is motivated by something as important as improving our natural environment. They explain clearly that success is not easy, disasters and failures are part of the process, but having goals result in meaningful steps toward it. Features Emphasizes how it is possible to develop long-term goals and persistence for success both in the academic and environmental world. Offers examples set in universities across America and highlights important national wetlands such as the Florida Everglades, the Kankakee River Marshlands in the Great Lakes region, and Ohio’s Olentangy River Wetland Park, a Ramsar Wetland of International Importance. Speaks to scientists from across the country and the world. Discusses chronologically the developments and the achievements of environmental /wetland fields on a global scale. Explains how his personal achievements contributed to the growth of wetland and environmental sciences. Students and professionals in the physical and biological sciences, including chemistry, environmental science, ecological fields, and environmental policy, and especially environmental consultants such as scientists, managers, and engineers, will feel a sense of camaraderie with Professor Mitsch. His longstanding career and devotion to environmental and wetland sciences are an inspiration to all who currently work in the field, aspire to, or simply harbor a sense of appreciation about the natural world and want to learn more about steps that can be taken to manage and protect our planet and the environment.
Book Synopsis Official Meeting Program by : Ecological Society of America. Meeting
Download or read book Official Meeting Program written by Ecological Society of America. Meeting and published by . This book was released on 2005 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecological Society of America ... Annual Meeting Abstracts by : Ecological Society of America. Meeting
Download or read book Ecological Society of America ... Annual Meeting Abstracts written by Ecological Society of America. Meeting and published by . This book was released on 2005 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biogeochemistry of Newly Created Riparian Wetlands by : Robert W. Nairn
Download or read book Biogeochemistry of Newly Created Riparian Wetlands written by Robert W. Nairn and published by . This book was released on 1996 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inflow soluble reactive phosphorus (SRP) and total phosphorus (TP) concentrations (17±3 and 169±11 ug P/L) were significantly higher (p
Book Synopsis Biogeochemistry of Wetlands by : K. Ramesh Reddy
Download or read book Biogeochemistry of Wetlands written by K. Ramesh Reddy and published by CRC Press. This book was released on 2022-09-10 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: The globally important nature of wetland ecosystems has led to their increased protection and restoration as well as their use in engineered systems. Underpinning the beneficial functions of wetlands are a unique suite of physical, chemical, and biological processes that regulate elemental cycling in soils and the water column. This book provides an in-depth coverage of these wetland biogeochemical processes related to the cycling of macroelements including carbon, nitrogen, phosphorus, and sulfur, secondary and trace elements, and toxic organic compounds. In this synthesis, the authors combine more than 100 years of experience studying wetlands and biogeochemistry to look inside the black box of elemental transformations in wetland ecosystems. This new edition is updated throughout to include more topics and provide an integrated view of the coupled nature of biogeochemical cycles in wetland systems. The influence of the elemental cycles is discussed at a range of scales in the context of environmental change including climate, sea level rise, and water quality. Frequent examples of key methods and major case studies are also included to help the reader extend the basic theories for application in their own system. Some of the major topics discussed are: Flooded soil and sediment characteristics Aerobic-anaerobic interfaces Redox chemistry in flooded soil and sediment systems Anaerobic microbial metabolism Plant adaptations to reducing conditions Regulators of organic matter decomposition and accretion Major nutrient sources and sinks Greenhouse gas production and emission Elemental flux processes Remediation of contaminated soils and sediments Coupled C-N-P-S processes Consequences of environmental change in wetlands# The book provides the foundation for a basic understanding of key biogeochemical processes and its applications to solve real world problems. It is detailed, but also assists the reader with box inserts, artfully designed diagrams, and summary tables all supported by numerous current references. This book is an excellent resource for senior undergraduates and graduate students studying ecosystem biogeochemistry with a focus in wetlands and aquatic systems.
Book Synopsis Hydrologic Pulses of Agricultural Waters: Effects on Wetland Plants and Soils in the Greenhouse, Constructed Drainage Ditches, and Bottomland Hardwood Forests by : Melissa Boyce Koontz
Download or read book Hydrologic Pulses of Agricultural Waters: Effects on Wetland Plants and Soils in the Greenhouse, Constructed Drainage Ditches, and Bottomland Hardwood Forests written by Melissa Boyce Koontz and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Upstream water management affects downstream ecology, especially the wetland plants and soil. The primary goal of this dissertation was to quantify the dynamic responses of plants and soil to variable hydrologic inputs. Measurements were taken at different spatial scales, which were in the greenhouse, constructed drainage ditches, and bottomland hardwood forests. Wetland plants grown in greenhouse conditions were exposed to variable hydrology and aqueous nitrogen fertilization treatments. The study species was rice cutgrass, Leersia oryzoides. Individual plants were able to modify physiological responses, elemental tissue concentrations, and biomass allocation in order to withstand environmental stress. The plants grown in partially flooded conditions had the highest biomass measurements of the leaf, stem, and root components. Continuously flooded plants had the lowest rhizome biomass. A field study of L. oryzoides was conducted utilizing constructed drainage ditches. This species exhibited seasonal differences in internal allocation of nitrogen, phosphorus, and biomass. Higher concentrations of both nitrogen and phosphorus were measured in the shoots during spring and summer months. During the autumn and winter seasons, the roots had increased concentrations of both nitrogen and phosphorus. Following three months of growth, plants allocated more biomass to roots than to shoots with the highest total biomass measured in the autumn. Additional field studies evaluated landscape level effects in the Mississippi River floodplain following hydrological restoration to secondary channel complexes. Sites were established both upstream and downstream of the restoration project. The sites consisted of bottomland hardwood forests, both historically and presently dominated by black willow, Salix nigra. Soil nutrient concentrations had the greatest reduction at the site nearest the hydrological input compared to the downstream site. The restored hydrology enhanced the aboveground net primary productivity of the trees, including stem growth and leaf litter production. Data generated by these studies provide results that support the use of vegetated buffers in the aquatic/terrestrial transition zone to immobilize nutrients. Continued monitoring of vegetated drainage ditches and restored channel hydrology in the Mississippi River Basin is necessary in order to enhance the effectiveness of planning and managing projects directed toward improving nutrient cycling and water quality.
Book Synopsis Riparian Areas by : National Research Council
Download or read book Riparian Areas written by National Research Council and published by National Academies Press. This book was released on 2002-10-10 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.
Book Synopsis Wetland Carbon and Environmental Management by : Ken W. Krauss
Download or read book Wetland Carbon and Environmental Management written by Ken W. Krauss and published by John Wiley & Sons. This book was released on 2021-11-23 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores how the management of wetlands can influence carbon storage and fluxes. Wetlands are vital natural assets, including their ability to take-up atmospheric carbon and restrict subsequent carbon loss to facilitate long-term storage. They can be deliberately managed to provide a natural solution to mitigate climate change, as well as to help offset direct losses of wetlands from various land-use changes and natural drivers. Wetland Carbon and Environmental Management presents a collection of wetland research studies from around the world to demonstrate how environmental management can improve carbon sequestration while enhancing wetland health and function. Volume highlights include: Overview of carbon storage in the landscape Introduction to wetland management practices Comparisons of natural, managed, and converted wetlands Impact of wetland management on carbon storage or loss Techniques for scientific assessment of wetland carbon processes Case studies covering tropical, coastal, inland, and northern wetlands Primer for carbon offset trading programs and how wetlands might contribute The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity.Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals.
Book Synopsis Forest and Rangeland Soils of the United States Under Changing Conditions by : Richard V. Pouyat
Download or read book Forest and Rangeland Soils of the United States Under Changing Conditions written by Richard V. Pouyat and published by Springer Nature. This book was released on 2020-09-02 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book synthesizes leading-edge science and management information about forest and rangeland soils of the United States. It offers ways to better understand changing conditions and their impacts on soils, and explores directions that positively affect the future of forest and rangeland soil health. This book outlines soil processes and identifies the research needed to manage forest and rangeland soils in the United States. Chapters give an overview of the state of forest and rangeland soils research in the Nation, including multi-decadal programs (chapter 1), then summarizes various human-caused and natural impacts and their effects on soil carbon, hydrology, biogeochemistry, and biological diversity (chapters 2–5). Other chapters look at the effects of changing conditions on forest soils in wetland and urban settings (chapters 6–7). Impacts include: climate change, severe wildfires, invasive species, pests and diseases, pollution, and land use change. Chapter 8 considers approaches to maintaining or regaining forest and rangeland soil health in the face of these varied impacts. Mapping, monitoring, and data sharing are discussed in chapter 9 as ways to leverage scientific and human resources to address soil health at scales from the landscape to the individual parcel (monitoring networks, data sharing Web sites, and educational soils-centered programs are tabulated in appendix B). Chapter 10 highlights opportunities for deepening our understanding of soils and for sustaining long-term ecosystem health and appendix C summarizes research needs. Nine regional summaries (appendix A) offer a more detailed look at forest and rangeland soils in the United States and its Affiliates.
Book Synopsis Environmental Role of Wetlands in Headwaters by : Josef Krecek
Download or read book Environmental Role of Wetlands in Headwaters written by Josef Krecek and published by Springer Science & Business Media. This book was released on 2006-05-28 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internationally, the wetlands of headwater and upland regions provide many valuable environmental services. This book moves towards a more comprehensive inventory of the benefits and costs of headwater wetlands. It evaluates the research that tries to understand the tolerances, exchanges, checks and balances within headwater landscapes and the downstream impacts of changes in wetlands. It employs case studies and reviews from 21 nations spanning Europe, Africa, Asia and the Americas. It explores the new policy frameworks, changes in land husbandry, new systems for community education, participatory processes and technological interventions required for the effective management of headwater wetlands and the full integration of wetlands (including newly constructed wetlands) into environmental management and planning. In the past, most research dealt with wetlands as isolated features, this book examines wetlands in their watershed management context.
Book Synopsis National List of Plant Species that Occur in Wetlands by : Porter B. Reed
Download or read book National List of Plant Species that Occur in Wetlands written by Porter B. Reed and published by . This book was released on 1988 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nutrient Criteria Technical Guidance Manual by :
Download or read book Nutrient Criteria Technical Guidance Manual written by and published by . This book was released on 2000 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioindicators for Assessing Ecological Integrity of Prairie Wetlands by : Paul R. Adamus
Download or read book Bioindicators for Assessing Ecological Integrity of Prairie Wetlands written by Paul R. Adamus and published by . This book was released on 1996 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309467578 Total Pages :717 pages Book Rating :4.3/5 (94 download)
Book Synopsis Thriving on Our Changing Planet by : National Academies of Sciences, Engineering, and Medicine
Download or read book Thriving on Our Changing Planet written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-01-20 with total page 717 pages. Available in PDF, EPUB and Kindle. Book excerpt: We live on a dynamic Earth shaped by both natural processes and the impacts of humans on their environment. It is in our collective interest to observe and understand our planet, and to predict future behavior to the extent possible, in order to effectively manage resources, successfully respond to threats from natural and human-induced environmental change, and capitalize on the opportunities â€" social, economic, security, and more â€" that such knowledge can bring. By continuously monitoring and exploring Earth, developing a deep understanding of its evolving behavior, and characterizing the processes that shape and reshape the environment in which we live, we not only advance knowledge and basic discovery about our planet, but we further develop the foundation upon which benefits to society are built. Thriving on Our Changing Planet presents prioritized science, applications, and observations, along with related strategic and programmatic guidance, to support the U.S. civil space Earth observation program over the coming decade.
Book Synopsis The Riverine Ecosystem Synthesis by : James H. Thorp
Download or read book The Riverine Ecosystem Synthesis written by James H. Thorp and published by Elsevier. This book was released on 2010-07-27 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the most comprehensive model yet for describing the structure and functioning of running freshwater ecosystems. Riverine Ecosystems Synthesis (RES) is a result of combining several theories published in recent decades, dealing with aquatic and terrestrial systems. New analyses are fused with a variety of new perspectives on how river network ecosystems are structured and function, and how they change along longitudinal, lateral, and temporal dimensions. Among these novel perspectives is a dramatically new view of the role of hydrogeomorphic forces in forming functional process zones from headwaters to the mouths of great rivers. Designed as a useful tool for aquatic scientists worldwide whether they work on small streams or great rivers and in forested or semi-arid regions, this book will provide a means for scientists to understand the fundamental and applied aspects of rivers in general and includes a practical guide and protocols for analyzing individual rivers. Specific examples of rivers in at least four continents (Africa, Australia, Europe and North America) serve to illustrate the power and utility of the RES concept. - Develops the classic, seminal article in River Research and Applications, "A Model of Biocomplexity in River Networks Across Space and Time" which introduced the RES concept for the first time - A guide to the practical analysis of individual rivers, extending its use from pristine ecosystems to modern, human-modified rivers - An essential aid both to the study fundamental and applied aspects of rivers, such as rehabilitation, management, monitoring, assessment, and flow manipulation of networks
Book Synopsis Wetland Ecosystems by : William J. Mitsch
Download or read book Wetland Ecosystems written by William J. Mitsch and published by John Wiley & Sons. This book was released on 2009-04-13 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: New focused text introduces readers to wetland ecosystems and systems approaches to studying wetlands With its comprehensive coverage of wetland science, management, and restoration, Mitsch and Gosselink's Wetlands has been the premier reference on wetlands for more than two decades. Now, the coverage of specific wetland ecosystem types from earlier editions of this acclaimed work has been updated, revised, and supplemented with additional content in order to create this new text focusing exclusively on wetland ecosystems. This book now complements Wetlands, Fourth Edition. Following an introduction to ecosystems in general and wetland ecosystems in particular, Wetland Ecosystems examines the major types of wetlands found throughout the world: coastal wetlands, freshwater marshes and forested swamps, and peatlands. The final chapter reviews three fundamental systems approaches to studying wetlands: mesocosms, full-scale experimental ecosystems, and mathematical modeling. This new text features: Updated descriptions of the hydrology, biogeochemistry, and biology of the main types of wetlands found in the world New content introducing general ecosystems, wetland ecosystems, whole ecosystem and mesocosm experiments with wetlands, and systems ecology and modeling A detailed description of the ecosystem services provided by wetlands A broad international scope, including many examples of wetlands located outside North America Two new coauthors offering new perspectives and additional insights into the latest ecosystem and modeling techniques An abundance of illustrations helps readers understand how different biological communities and the abiotic environment in wetland ecosystems interact and function. Tables and text boxes provide at-a-glance summaries of key information. Lastly, each chapter concludes with a list of recommended readings. This text has been designed as an introduction for students and professionals in wetland ecology and management, general ecology, environmental science, and natural resource management.
