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Books > Earth & environment > The environment > Conservation of the environment
A burning mix of diesel fuel and gasoline drips from handheld canisters onto the ground. Slowly a line of fire begins to creep downhill. The flames are well behaved, almost hesitant. This is a backing fire, unlikely to attract media attention unless it escapes, like the disastrous Los Alamos Cerro Grande fire did in 2000. This book explores a century of controversy over prescribed burning--using fire as a tool--and fire suppression. For more than 100 years, America waged an all-out war against wildland fire. Decades of fire suppression caused fuels to build up at alarming levels in our forests, culminating in the increasingly severe, uncontrollable fires of the late 20th century--the fires in Yellowstone, the Oakland Hills, and Los Alamos and the fires in summers of 2000 (the second worst fire season in the nation's history) and 2001. Looking at these and earlier fires, Carle uses the voices of those who were involved, of those who were early advocates, and of today's proponents to examine the role of controlled burning. Early in the century, Harold Biswell, a pioneer in prescribed burning, dared to commit the heresy of questioning the dogma of fire suppression, despite professional controversy and opprobrium, he and a few other pioneers led the way. Their roles play an integral part in the story told here. In Biswell's words, fire is a natural part of the environment, about as important as rain and sunshine... . We must work more in harmony with nature, not so much against it. Can humanity, this book asks, learn to become a fire-adapted species?
This edited collection provides a cross-sectional review of environmental legislation and administration in the United States, with comparative chapters relating to Canada and New Zealand. The experts look at a variety of environmental issues that create policy problems, and while the book offers no blueprint or prognosis of environmental policy in the twenty-first century, it does offer insights into trends that will influence the future shape of that policy. The book is prefaced by an overview of the environment as a problem for policy by Lynton K. Caldwell, who has been credited with inventing the term environmental policy. Experts examine the role of risk analysis in policy making; the transnational issues associated with NAFTA and GATT are discussed; and the efforts of the Environmental Protection Agency to integrate policy and administration are described. The perspective of the authors is transnational, with several chapters focusing primarily on U.S. policy.
In this compelling book, Rien Fertel tells the story of humanity's complicated and often brutal relationship with the brown pelican over the past century. This beloved bird with the mythically bottomless belly-to say nothing of its prodigious pouch-has been deemed a living fossil and the most dinosaur-like of creatures. The pelican adorns the Louisiana state flag, serves as a religious icon of sacrifice, and stars in the famous parting shot of Jurassic Park, but, most significantly, spotlights our tenuous connection with the environment in which it flies, feeds, and roosts-the coastal United States. In 1903, Theodore Roosevelt inaugurated the first national wildlife refuge at Pelican Island, Florida, in order to rescue the brown pelican, among other species, from the plume trade. Despite such protections, the ubiquity of synthetic "agents of death," most notably DDT, in the mid-twentieth century sent the brown pelican to the list of endangered species. By the mid-1960s, not one viable pelican nest remained in all of Louisiana. Authorities declared the state bird locally extinct. Conservation efforts-including an outlandish but well-planned birdnapping-saved the brown pelican, generating one of the great success stories in animal preservation. However, the brown pelican is once again under threat, particularly along Louisiana's coast, due to land loss and rising seas. For centuries, artists and writers have portrayed the pelican as a bird that pierces its breast to feed its young, symbolizing saintly piety. Today, the brown pelican gives itself in other ways, sacrificed both by and for the environment as a bellwether bird-an indicator species portending potential disasters that await. Brown Pelican combines history and first-person narrative to complicate, deconstruct, and reassemble our vision of the bird, the natural world, and ourselves.
This synopsis covers evidence for the effects of conservation interventions for native farmland wildlife. It is restricted to evidence captured on the website www.conservationevidence.com. It includes papers published in the journal Conservation Evidence, evidence summarized on our database and systematic reviews collated by the Collaboration for Environmental Evidence. It is the thrid volume in the series Synopses of Conservation Evidence. Evidence was collected from all European countries west of Russia, but not those south of France, Switzerland, Austria, Hungary and Romania. A list of interventions to conserve wildlife on farmland was developed collaboratively by a team of thirteen experts. A number of interventions that are not currently agri-environment options were added during this process, such as 'Provide nest boxes for bees (solitary or bumblebees)' and 'Implement food labelling schemes relating to biodiversity-friendly farming'. Interventions relating to the creation or management of habitats not considered commercial farmland (such as lowland heath, salt marsh and farm woodland) were removed. The list of interventions was organized into categories based on the International Union for the Conservation of Nature (IUCN) classifications of direct threats and conservation actions. Interventions that fall under the threat category 'Agriculture' are grouped by farming system, with separate sections for interventions that apply to arable or livestock farms, or across all farming types.
Green management or management using environmentally sensible techniques is the next major challenge for American business managers. State-of-the-art green management practices are needed to reduce pollution and to improve competitiveness by conserving resources and using the resources in a responsible manner. Every functional area of the firm will participate. World class practices for planning and implementation of green strategies are provided for technical, production, marketing and general managers. Management and engineering techniques are integrated to help readers assimilate practices into their own companies. Green benchmarking, green value analysis, and life cycle assessment are included. This work is mainly written for practicing production managers, R&D managers, corporate managers, and marketing managers who are interested in learning about green management with methods of measurements of success and methods of implementation included. The work also should be of interest to scholars and students in business management.
Orchids are the most charismatic of flowering plants and the largest family with over 20,000 species. Many are naturally rare and others are thought to be endangered or extinct through habitat destruction and over-collecting. Orchids have a high profile in conservation but relatively little is known about their distribution and lifestyles. Author Harold Koopowitz gives the most up-to-date information on the biology, ecology, distribution, destruction and conservation of orchids that there is.
This book provides insights into various aspects of marine faunal communities in India, which are extremely diverse due to the geomorphologic and climatic variations along the Indian coasts. Consisting of 30 chapters by experts in their respective fields, it is divided into two parts: . Part I: Tropical Marine Faunal Communities . Part II: Ecology and Conservation Part I highlights the diversity and distribution of Foraminifera; sponges associated with seagrass; Polychaeta; Opisthobranchia; oysters; copepods; horseshoe and brachyuran crabs; echinoderms; ascidians; fishes; fish parasites; and sea mammals. Topics of Part II include the status and environmental parameters of benthos; the status of coral reefs; the invasion of snowflake coral; the recovery of bleached corals; the socioeconomics and management of dugong; marine biodiversity conservation and management in India; the assessment of the marine fauna of the Indian Wildlife Protection Act; and marine biodiversity protected areas in India. This book will serve as a valuable reference work for marine scientists, as well as for environmental managers and policy makers. "
This book focuses on the use of microorganisms in relation to agriculture, aquaculture and related fields, ranging from biofertilizers to poultry production. The latest innovations are also included to provide insights into the unlimited potentials of microorganisms in these areas.Individual chapters explore topics such as probiotics in poultry, biopurification of wastewater, converting agrowastes into value-added applications and products, rice cultivation, surfactants and bacteriocin as biopreservatives, bioplastics, crop productivity, biofloc, and the production of natural antibiotics. This volume will be of particular interest to scientists, policymakers and industrial practitioners working in the fields of agriculture, aquaculture and public health.
This book gathers papers presented and discussions held at the Conference on Wind Energy and Wildlife Impacts in Melbourne, Australia on 9th October 2012. The purpose of the conference was to bring together researchers, industry, consultants, regulators and Non-Government Organizations to share the results of studies into wind farm and wildlife investigations in Australia and New Zealand. The aim was to further networking and communication between these groups. The conference discussed key issues and areas for future investigation, with the intention of developing consistencies in research and management. Like the Conference, the book showcases current research and management in the field of wind farms and wildlife in Australia and New Zealand; establishes consistencies in research and management; and highlights areas in need of further examination. The papers in these Proceedings are presented in two session topics. The first covers "Investigations and assessment of new wind farms" and the second, "Monitoring, mitigation and offsets." The Proceedings then summarize the panel discussions held at the end of the conference. The themes include improving pre- and post-construction survey design; identifying key knowledge gaps and research priorities; uncertainties and errors in data sets and analysis; creating opportunities to share knowledge; and assessing cumulative impacts across multiple sites.
This book brings together scientific evidence and experience relevant to the practical conservation of bats. The authors worked with an international group of bat experts and conservationists to develop a global list of interventions that could benefit bats. For each intervention, the book summarises studies captured by the Conservation Evidence project, where that intervention has been tested and its effects on bats quantified. The result is a thorough guide to what is known, or not known, about the effectiveness of bat conservation actions throughout the world. Bat Conservation is the fifth in a series of Synopses that will cover different species groups and habitats, gradually building into a comprehensive summary of evidence on the effects of conservation interventions for all biodiversity throughout the world. By making evidence accessible in this way, we hope to enable a change in the practice of conservation, so it can become more evidence-based. We also aim to highlight where there are gaps in knowledge. Evidence from all around the world is included. If there appears to be a bias towards evidence from northern European or North American temperate environments, this reflects a current bias in the published research that is available to us. Conservation interventions are grouped primarily according to the relevant direct threats, as defined in the International Union for the Conservation of Nature (IUCN)'s Unified Classification of Direct Threats (www.iucnredlist.org/technical-documents/classification-schemes).
This book provides a snapshot of representative modeling analyses of coastal hypoxia and its effects. Hypoxia refers to conditions in the water column where dissolved oxygen falls below levels that can support most metazoan marine life (i.e., 2 mg O2 l-1). The number of hypoxic zones has been increasing at an exponential rate since the 1960s; there are currently more than 600 documented hypoxic zones in the estuarine and coastal waters worldwide. Hypoxia develops as a synergistic product of many physical and biological factors that affect the balance of dissolved oxygen in seawater, including temperature, solar radiation, wind, freshwater discharge, nutrient supply, and the production and decay of organic matter. A number of modeling approaches have been increasingly used in hypoxia research, along with the more traditional observational and experimental studies. Modeling is necessary because of rapidly changing coastal circulation and stratification patterns that affect hypoxia, the large spatial extent over which hypoxia develops, and limitations on our capabilities to directly measure hypoxia over large spatial and temporal scales. This book consists of 15 chapters that are broadly organized around three main topics: (1) Modeling of the physical controls on hypoxia, (2) Modeling of biogeochemical controls and feedbacks, and, (3) Modeling of the ecological effects of hypoxia. The final chapter is a synthesis chapter that draws generalities from the earlier chapters, highlights strengths and weaknesses of the current state-of-the-art modeling, and offers recommendations on future directions.
Awareness of eco-literature has recalled the central ideology of environmentalism - "to think globally and act locally." As this volume shows, various tags of contemporary discourse have emerged, including transnational, cosmopolitan, hybridity, diaspora, and generally cultural. These concerns highlight such global environmental problems as biodiversity, climate change, and developing new forms of interconnectedness with local and regional communities. In this context, contemporary discourse becomes of immediate concern in understanding the environmental crisis. In a way, reading different cultures and experiences can contribute to a contemporary discourse that can facilitate an environmental sensibility and develop a unique ecological approach.
This book focuses on the vegetation history of the cultural landscape in southwestern Slovakia, which was established and adopted by mankind and has since constantly evolved in response to ongoing changes (in environmental conditions, biodiversity, land use, etc.). The book analyses four dominant ecosystems typical for the cultural landscape and affected by humans: woodlands, wetlands, grasslands and agricultural land. Each ecosystem is discussed in separate chapters. The chapters include (a) basic information, general aspects, development processes, trends and interpretations, (b) a published or non-published case study based on the author's own research, and (c) an extensive bibliography. A set of maps on the vegetation history and indices of geographical names and plants names serve to round out the coverage. The work provides an essential point of departure for describing the typical regional characteristics of the cultural landscape, with an eye to its future preservatio n.
Longlisted for the Highland Book Prize 2021 In 1995 the National Trust for Scotland acquired Mar Lodge Estate in the heart of the Cairngorms. Home to over 5,000 species, this vast expanse of Caledonian woodlands, subarctic mountains, bogs, moors, roaring burns and frozen lochs could be a place where environmental conservation and Highland field sports would exist in harmony. The only problem was that due to centuries of abuse by human hands, the ancient Caledonian pinewoods were dying, and it would take radical measures to save them. After 25 years of extremely hard work, the pinewoods, bogs, moors and mountains are returning to their former glory. Regeneration is the story of this success, featuring not only the people who are protecting the land and quietly working to undo the wrongs of the past, but also the myriad creatures which inspire them to do so. In addition, it also tackles current controversies such as raptor persecution, deer management and rewilding and asks bigger questions about the nature of conservation itself: what do we see when we look at our wild places? What should we see?
The study of literature and the environment evokes and promotes this highly original eco-critical collection and its contributions to evaluating the preservation of nature and human attachment and to situate it at a local, communitarian, or bio-regional level. Revisiting eco-literature can aid our exploration of numerous global issues and challenges through a literary rendition of the natural world in poetry, fiction, and non-fiction. Reflecting on different works will prompt the readers to intensify their search for viable and effective choices and healthy alternatives in a confusing world.
"Empire forestry"-the broadly shared forest management practice that emerged in the West in the nineteenth century-may have originated in Europe, but it would eventually reshape the landscapes of colonies around the world. Melding the approaches of environmental history and political ecology, Colonial Seeds in African Soil unravels the complex ways this dynamic played out in twentieth-century colonial Sierra Leone. While giving careful attention to topics such as forest reservation and exploitation, the volume moves beyond conservation practices and discourses, attending to the overlapping social, economic, and political contexts that have shaped approaches to forest management over time.
Human degradation of the environment has been documented by scholars across a range of disciplines: the global temperature of the planet continues to rise, abandoned industrial sites stain once vibrant communities, and questions about the purity of our water and foods linger. In the shadow of these material conditions, concerned citizens have reacted by issuing critiques against careless consumerism and excessive lifestyles. Their hope is to illustrate and inspire alternative ways of living. As part of such efforts and activism, some have turned to performance as a means to investigate matters further, pose challenges and questions, and enact new ways of being and thinking in a globalized world. Performance on Behalf of the Environment is a collection of essays from a diverse group of scholars that explore critically the strengths, limitations, and processes of what can be termed environmental performances.
1 Aufgaben, Wirkungsweise und Bedeutung von Lagerungen.- 1.1 Funktionsweise.- 1.2 Geschichtlicher Ruckblick.- 1.3 Lagerarten.- 2 Tribologische Grundlagen und Kenngroessen der Schmierstoffe.- 2.1 Reibung und Verschleiss.- 2.1.1 Reibungsarten.- 2.1.2 Reibungszustande.- 2.1.3 Stribeck-Kurve.- 2.2 Schmierstoffe.- 2.2.1 Aufgaben und Einteilung der Schmierstoffe.- 2.2.1.1 Aufgaben.- 2.2.1.2 Einteilung.- 2.2.2 Kenngroessen von Schmierstoffen.- 2.2.2.1 Viskositat und Dichte.- 2.2.2.2 Thermische Kenngroessen von Schmierstoffen.- 2.2.3 Viskositatsklassifikation der Schmieroele.- 2.2.3.1 ISO-Normoele.- 2.2.3.2 SAE-Klassifikation.- 2.2.3.3 Weitere Motorenoel-Klassifikationen.- 2.2.4 Additive fur Motorenoele.- 2.2.5 Prufung von Motorenoelen, Gebrauchtoel-Eigenschaften.- 2.2.5.1 Motorenoelprufung.- 2.2.5.2 Veranderung von Motorenoelen im Gebrauch.- 3 Schmiersysteme von Verbrennungsmotoren.- 3.1 Funktion und Bestandteile von Schmiersystemen.- 3.2 Schmierstoffpumpen.- 3.3 Schmierstoffilter und Filtersysteme.- 3.3.1 Anforderungen.- 3.3.2 Filterbauarten.- 3.4 Schmieroelkuhlung.- 3.5 Steuerungs- und Sicherheitsbauteile.- 3.6 Schmiersysteme unterschiedlicher Motorentypen.- 3.6.1 PKW-Motoren.- 3.6.2 LKW- und kleinere Industrie-Motoren.- 3.6.3 Mittelschnell laufende Motoren.- 3.6.4 Motorradmotoren und schnell laufende Zweitaktmotoren.- 4 Die Lagerung von Verbrennungsmotoren und ihre Belastung.- 4.1 Dynamisch beanspruchte Gleitlager.- 4.2 Lager des Kurbeltriebes.- 4.2.1 Kolbenbolzenlager.- 4.2.2 Pleuellager.- 4.2.3 Grundlager.- 4.2.4 Weitere Lagerstellen.- 4.3 Kraftezerlegung.- 4.3.1 Kolbenbolzenlager.- 4.3.2 Pleuellager.- 4.3.3 Grundlager.- 4.4 Berechnungsmethoden bei Mehrzylindermotoren.- 5 Hydrodynamische Berechnung von Verbrennungsmotoren-Gleitlagern.- 5.1 Theoretische Grundlagen.- 5.1.1 Druckaufbau durch Tangentialbewegung (Keildruck).- 5.1.2 Druckaufbau durch Radialbewegung (Verdrangungsdruck).- 5.2 Berechnung der Wellenverlagerungsbahn.- 5.2.1 Ausgangspunkt und Berechnungsverfahren.- 5.2.2 Verfahren der uberlagerten Tragkrafte.- 5.3 Berechnung der Reibungsleistung.- 5.4 Berechnung der OEldurchsatzmenge.- 5.5 Warmebilanz.- 5.6 Maximaler Schmierfilmdruck.- 5.7 Umwandlung der raumfesten in koerperfeste Koordinaten.- 5.7.1 Grundlager.- 5.7.2 Pleuellager.- 5.7.3 Kolbenbolzenlager.- 5.8 Winkelgeschwindigkeiten der Lager eines Kurbeltriebes.- 5.9 EDV-Paket zur Auslegung dynamisch beanspruchter Radialgleitlager.- 5.10 Elastohydrodynamische Lagerberechnung - EHD.- 5.10.1 Vorteile und Aussagefahigkeit der elastohydrodynamischen Berechnung.- 5.10.2 Theoretische Grundlagen der EHD-Berechnungsmethode.- 5.10.3 Vergleich der Berechnungs- und Messergebnisse.- 6 Auslegung von Verbrennungsmotorenlagerungen.- 6.1 Auslegungskenngroessen und ihre Optimierung.- 6.1.1 Betriebszustand (Lagerbelastung).- 6.1.2 Lagerabmessungen.- 6.1.3 Schmierstoff und Schmierung.- 6.2 Optimierung der Einflussgroessen - Optimalauslegung.- 6.2.1 Bedeutung und Moeglichkeiten.- 6.2.2 Beurteilungsgroessen fur eine Optimalauslegung, ubliche Grenzwerte.- 6.2.3 Einfluss des relativen Lagerspieles.- 6.2.4 Einfluss von OElzufuhrungstemperatur und -druck.- 6.2.5 Art und Lage der Schmierstoffzufuhrung.- 6.2.6 Steifigkeit von Kurbelwelle, Lager und lagerumgebenden Bauteilen.- 6.2.7 Einfluss der Kurbelwellengestaltung (Massenausgleich).- 6.3 Schlussfolgerungen fur die Lagerauslegung aus der Anwendung von EDV-Programmpaketen.- 7 Konstruktive Gestaltung von Lagern.- 7.1 Lagerbauarten und konstruktive Details.- 7.1.1 Lagerbuchsen.- 7.1.2 Dunnwandige Lagerschalen mit und ohne Anlaufring.- 7.1.3 Schmierstoffzufuhrungselemente.- 7.1.4 Axiallager.- 7.2 Lagerschalenpresssitz.- 7.3 Grobgestaltung - Ruckwirkung der Lagerumgebung auf die Lagerparameter.- 7.4 Feingestaltung von Lagern.- 7.4.1 Kleines Pleuelauge.- 7.4.2 Kolbenbolzenaugen.- 7.4.3 Grosses Pleuelauge.- 7.4.4 Grundlager und Anordnung der OElbohrungen in den Kurbelwellen.- 7.4.5 Nockenwellenlager.- 7.4.6 Ausgleichswellenlager
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