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Books > Earth & environment > Earth sciences > The hydrosphere > Hydrology (freshwater)
This book presents the phylogeny, taxonomy and biogeography of freshwater red algae. Its content is divided into five chapters. The first chapter provides a brief history of freshwater red algal research, habits and collecting methods, general biogeographic trends and an overview of the taxonomic/phylogenetic placement of freshwater taxa. The other four chapters are taxonomic treatments of non-marine red algae based on taxonomic levels, i.e. classes within the phylum Rhodophyta, orders within each class, families within each order, and genera within each family. Descriptions, phylogenetic data (including numerous trees), geographic range (maps for most species) and dichotomous keys for identification are presented. Comprehensive data are provided for more than 220 species.
The lands and waters of the Mid-Atlantic Region (MAR) have changed significantly since before the 16th century when the Susquehannock lived in the area. Much has changed since Captain John Smith penetrated the estuaries and rivers during the early 17th century; since the surveying of the Mason-Dixon Line to settle border disputes among Maryland, Pennsylvania, and Delaware during the middle of the 18th century; and since J. Thomas Scharf described the physiographic setting of Baltimore County in the late 19th century. As early as 1881, Scharf provides us with an assessment of the condition of the aquatic ecosystems of the region, albeit in narrative form, and already changes are taking place - the conversion of forests to fields, the founding of towns and cities, and the depletion of natural resources. We have always conducted our work with the premise that "man" is part of, and not apart from, this ecosystem and landscape. This premise, and the historical changes in our landscape, provide the foundation for our overarching research question: how do human activities impact the functioning of aquatic ecosystems and the ecosystem services that they provide, and how can we optimize this relationship?
The increasingly widespread production of toxins by marine and freshwater microalgae raises serious concerns regarding seafood and drinking water safety. This book compiles studies on the influence of climate change on the spreading of toxin-producing species in aquatic systems. The chemistry and biology of toxin production is revised and an outlook on control and prevention of the toxins' impact on human and animal health is given.
This book provides a comprehensive and systematic analysis of the morphodynamic process of the Changjiang River from upstream to estuary in the Anthropocene. As the longest river in China, the Changjiang River has nurtured Chinese civilization with ample natural resources for thousands of years. Evidence highlights that the Changjiang River has experienced intensive human interference and indicated dramatic changes in the Anthropocene, including "no flood in flood season, no dry in dry season" in discharge; "less flood in flood season, more dry in dry season" in sediment; riverbed shifts from accretion to erosion; lakes in the middle-lower reach turn from sediment sink to source; estuarine tidal flat exhibits self-organization characteristics and maintains the current accretion state; estuarine branches that connect to the sea show district morphodynamic patterns; and depocenters of the submerged delta indicate periodic shifts. The book stresses that dam construction upstream, practically the Three Gorges Dam, the world's largest hydraulic engineering project, has significant influences on the hydrology and geomorphology of the middle-lower reach but has a slight effect on estuarine delta development. The geomorphological structure of the estuarine channel is dominated by local land reclamation, navigation, and dredging. This book clarifies the river-estuary morphodynamics of the Changjiang River and indicates the general features of global mega rivers under human interference as well as their own response mechanisms. This book also exhibits the potential risk of river-estuary deltas in the future, as both material and dynamics are experiencing acceleration adjustment.
This book introduces readers to basic approaches in and principles of marine nuclear power design, including overall reactor design, in-core design, coolant systems and devices, I&C system design, safety system design, and dynamic analysis assessment. It comprehensively reviews both the fundamentals of and latest trends in nuclear-powered devices, covering their entire lifespan, from design and testing to operation and decommissioning. Further, it explores in detail various real-world conditions in the marine context - such as insufficient space for equipment deployment and frequently changing operating conditions as well as swinging and tilting. Offering extensive information on the design and operation of marine nuclear power systems, the book is a valuable resource for researchers and professionals in the area of marine science and nuclear engineering, and graduate students intending to embark on a career in the field.
This book presents a comprehensive selection of applications employed in environmental remote sensing using optical and thermal infrared satellite-sensors aiming to map natural resources, crops, groundwater, surface water, aquatic ecosystem, land degradation, air quality, renewable energy, regional resources, and climate-related geophysical processes. The technologies presented in this book also include satellite images, space-borne radar sensors focusing on the most versatile one, data from synthetic aperture radar (SAR), scatterometers and radar altimeters in Egypt. This volume also presents a thorough explanation of the remote sensing role showing physical fundamentals of the climate change phenomenon including gas emissions, and the impact on resources concerning the sustainable development of Egypt. Besides, the book includes an analysis of oil pollution in both Mediterranean and Red Seas This book is intended for environmental policymakers working in Egypt as well as scientists working with remote sensing technologies in highly populated arid regions.
Stretching along 156 miles of Florida's East Coast, the Indian River Lagoon contains the St. Lucie estuary, the Mosquito Lagoon, Banana River Lagoon, and the Indian River. Nineteen canals and five man-made inlets have dramatically reshaped the region in the past two centuries, challenging the most biologically diverse estuarine system in the United States. Indian River Lagoon traces the winding story of the waterway, showing how humans have altered the area to fit their needs and also how the lagoon has influenced the cultures along its shores. Now stuck in transition between a place of labor and a place of recreation, the lagoon has become a chief focus of public concern. This book provides a much-needed bigger picture as debates continue over how best to restore this natural resource.
The question of how to deal with fractured rock domains has always been on the agenda of geohydrologists. Are Darcy's law and the theory of flow through porous media applicable to fractured rock aquifiers, at least when the flow is assumed to be in the laminar flow range? Is the continuum approach applicable? This subject has also been investigated by reservoir engineers because many important petroleum reservoirs are in fractured rock formations. Of special interest are reservoirs composed of fractured porous rocks, in which the blocks surrounded by the network of fractures are porous. The permeability of such blocks is often rather low, but the porosity, and hence the storage capacity for fluids, is very high. This "double porosity" model for fractured porous rock domains was first introduced in the field of reservoir engineering.;In the past two or three decades, fractured rock domains have received increasing attention not only in reservoir engineering and hydrology, but also in connection with geological isolation of radioactive waste. Locations in both the saturated and unsaturated zones have been under consideration because such repositories are sources of heat and potential
This book discusses how aquatic microbial communities develop interactive metabolic coordination both within and between species to optimize their energetics. It explains that microbial community structuration often includes functional stratification among a multitude of organisms that variously exist either suspended in the water, lodged in sediments, or bound to one another as biofilms on solid surfaces. The authors describe techniques that can be used for preparing and distributing microbiologically safe drinking water, which presents the challenge of successfully removing the pathogenic members of the aquatic microbial community and then safely delivering that water to consumers. Drinking water distribution systems have their own microbial ecology, which we must both understand and control in order to maintain the safety of the water supply. Since studying aquatic microorganisms often entails identifying them, the book also discusses techniques for successfully isolating and cultivating bacteria. As such, it appeals to microbiologists, microbial ecologists and water quality scientists.
This book presents the proceedings of CIDIN and COPINAVAL. The papers present the development of the navy, maritime and riverine industry, contributing to the scientific and technological progress and development in the sector. In 2019 the congresses occurred in Cartagena, Colombia, a reference for science and technology innovation for Latin-American naval industry.
First explored by naturalist William Bartram in the 1760s, the St. Johns River stretches 310 miles along Florida's east coast, making it the longest river in the state. The first "highway" through the once wild interior of Florida, the St. Johns may appear ordinary, but within its banks are some of the most fascinating natural phenomena and historic mysteries in the state. The river, no longer the commercial resource it once was, is now largely ignored by Florida's residents and visitors alike. In the first contemporary book about this American Heritage River, Bill Belleville describes his journey down the length of the St. Johns, kayaking, boating, hiking its riverbanks, diving its springs, and exploring its underwater caves. He rediscovers the natural Florida and establishes his connection with a place once loved for its untamed beauty. Belleville involves scientists, environmentalists, fishermen, cave divers, and folk historians in his journey, soliciting their companionship and their expertise. River of Lakes weaves together the biological, cultural, anthropological, archaeological, and ecological aspects of the St. Johns, capturing the essence of its remarkable history and intrinsic value as a natural wonder.
Understanding and protecting our environment is a key component of
environmental development, yet access to a wide range of
high-quality information is currently based on very limited data
due to lack of the exchange of data between source and recipient.
The main focus of this book is the transport mechanics of sediment particles coated with microbial biofilm, which is called bio-sediment. The book also addresses the question of how to measure and simulate the considerable variation in the properties of natural sediment associated with microbial biofilm, ranging from the micro-scale surface morphology to the macro-scale sediment transport. Nowadays most studies to elucidate the mechanisms of sediment transport have concentrated on physical-chemical sediment properties, little work explicitly coupled sediment dynamics and the environmental effects under the influence of micro-ecosystem, thus leaving a serious gap in water and sediment sciences as well as water ecological research. With respect to physical-chemical sediment properties, this book has been undertaken to evaluate and quantify the effect of biological factors - biofilm on sediment transport mechanics. The chapters cover topics including development of bio-sediment and its properties; model of biofilm growth on sediment substratum; bedform and flow resistance of bio-sediment bed; incipient velocity and settling velocity of bio-sediment; bedload and suspended load transport for bio-sediment; numerical simulation of bio-sediment transport. Besides, the measurement technology, analysis method and expression approach introduced in this book combine the characteristics of hydraulic, environmental and microbial research, having more immediate innovation. This book will be of interest to researchers, managers, practitioners, policy and decision makers, international institutions, governmental and non-governmental organizations, educators, as well as graduate and undergraduate students in the field of hydraulics and river dynamics. It will help to understand the relevance of sediment transport and biofilm growth under the role of aqueous micro-ecosystem, to introduce better tools for the simulation and prediction of bio-sediment transport, and to provide a scientific basis and application foundation for the research of interaction between sediment particles and ecological and environmental factors.
This book focuses on understanding the characteristics of the marine environment; overall characteristic of the marine resources (especially the marine new energy) and their current utilization; important routes, channels, and ports; and the Maritime Silk Road from the perspective of international law. It also discusses the significance and opportunities of the Maritime Silk Road initiative, analyzes the challenges involved in the construction of the Maritime Silk Road and provides corresponding countermeasures. Based on the above research, this book also proposes to construct a comprehensive application platform for the Maritime Silk Road that will be a practical tool for decision-making. This book is one of the series publications on the 21st century Maritime Silk Road (shortened as "Maritime Silk Road"). This series publications cover the characteristics of the marine environment and marine new energy, remote islands and reefs construction, climate change, early warning of wave disasters, legal escort, marine environment and energy big data construction, etc. contributing to the safe and efficient construction of the Maritime Silk Road. It aims to improve our knowledge of the ocean, thus to improve the capacity for marine construction, enhance the viability of remote islands and reefs, ease the energy crisis and protect the ecological environment, improve the quality of life of residents along the Maritime Silk Road, and protect the rights, interests of the countries and regions participating in the construction of the Maritime Silk Road. It will be a valuable reference for decision-makers, researchers, and marine engineers working in the related fields.
This book contains a selection of papers arising from an international conference, held in Maratea, Italy, June 26-28, 1991. It comprises six sections encompassing a range of the major aspects of entropy-based developments in water resources. Each section normally starts with an invited, state-of-the-art paper, followed by contributed papers. Section one presents a discussion on the perspectives of entropy and energy dissipation. The applications of entropy and hydrology are considered in section two, water resources in chapter three and hydraulics in section four. Sections five and six deal with the applications of energy principles in, respectively, hydrology and hydraulics. This book should interest reseachers as well as those engaged in civil engineering, agricultural engineering, environmental engineering, hydrology, water resources, earth resources, forestry, geography and climatology. Graduate students, as well as those wishing to conduct research on entropy or its applications, should find this book useful.
This book focuses on water pollution, water management and water structures. Presenting contributions on water quality and quantity issues from the engineering point of view, it discusses a variety of issues, from storm water management in urban areas and water quantity, to hydraulic structures, hydrodynamic modeling and flood protection. The book also provides state-of-the-art insights, which that can be used to effectively solve a variety of problems in integrated water resources management, and introduces the latest research advances. Edited and authored by pioneers in the field who have been at the forefront of water management development in the Czech Republic, this book is a valuable resource for environmental professionals, including scientists and policymakers, interested in water-related issues both in the Czech Republic and elsewhere.
Stochastic hydrology is an essential base of water resources systems analysis, due to the inherent randomness of the input, and consequently of the results. These results have to be incorporated in a decision-making process regarding the planning and management of water systems. It is through this application that stochastic hydrology finds its true meaning, otherwise it becomes merely an academic exercise. A set of well known specialists from both stochastic hydrology and water resources systems present a synthesis of the actual knowledge currently used in real-world planning and management. The book is intended for both practitioners and researchers who are willing to apply advanced approaches for incorporating hydrological randomness and uncertainty into the simulation and optimization of water resources systems.
The BIOGEOMON conference, held in Prague, September 1993, was dedicated to the use of geochemistry and biology in the elucidation of biogeochemical processes in the context of research on small catchments, which are natural systems that lend themselves to the study of environmental problems at the ecosystem level. Biogeochemical Monitoring in Small Catchments, which contains reviewed papers from the conference, includes long-term studies of nutrient cycling in forested catchments, effects of anthropogenic action on streamwater chemistry, stable isotope studies for tracing biogeochemical processes, determination of the process rates, and mathematical modelling of ecosystem behaviour and mass fluxes. For research scientists and students of ecology, biology, hydrology and geochemistry as well as professionals in natural resources management.
This book is open access under a CC BY-NC 4.0 license. It explores the diverse phenomena which are challenging the international law of the sea today, using the unique perspective of a simultaneous analysis of the national, individual and common interests at stake. This perspective, which all the contributors bear in mind when treating their own topic, also constitutes a useful element in the effort to bring today's legal complexity and fragmentation to a homogenous vision of the sustainable use of the marine environment and of its resources, and also of the international and national response to maritime crimes.The volume analyzes the relevant legal frameworks and recent developments, focusing on the competing interests which have influenced State jurisdiction and other regulatory processes. An analysis of the competing interests and their developments allows us to identify actors and relevant legal and institutional contexts, retracing how and when these elements have changed over time.
This book offers a comprehensive review of the landscapes and ecosystems of the Upper Yellow River. It focuses on landscapes as a platform for considering environmental values and issues across the region. The book is based on extensive field-based analyses, applications, and photographs. |
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