Marine environment

Xem 1-20 trên 106 kết quả Marine environment
  • Lecture Marine environmental studies - Topic: Introduction. In this chapter, the following content will be discussed: Why study (marine) environmental studies? The marine environment, uses of the marine environment, what is marine pollution? Implicit in the definition,...

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  • Land-based pollution represents the single most important cause of marine pollution; the threat of land-based pollution to the marine environment is a serious one since it mainly affects coastal waters, which are sites of high biological productivity. In this chapter provides knowledge of land-based marine pollution.

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  • This third editon has been intensively augmented and revised to include the latest developments in this rapidly expanding field. The intensified search for oil and gas, the catastrophic flooding of coastal regions and the demands for transportation, bridges, submerged tunnels and waterways have led to the continuing innovation of new technology which isnowavailable for use on more conventional projects as well as those at the frontiers. This text is intended as a guide and reference for practicing engineers and constructors for use in the marine environment.

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  • Located at the interface of the geosphere, biosphere, hydrosphere and atmosphere, land is important for an understanding of both the natural environment process and those affected by human activities.

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  • The specific problems associated with concrete and concreting in hot environments have been recognised for some decades. This recognition has manifested itself over the years at a few symposia and in hundreds of papers where relevant research results and field observations were presented and discussed. In other publications the practical conclusions from these available data and experiences have been summarised in the form of guidelines for hot climate concreting.

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  • Private landowners or Federal Agencies responsible for cleaning up radiological environments are faced with the challenge of clearly defining the nature and extent of radiological contamination, implementing remedial alternatives, then statistically verifying that cleanup objectives have been met.

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  • Marine birds are equally at home on land, in the air, and in the water. While many organisms can go from land to water (amphibians, some reptiles, some insects), others generally live in only one medium during their lives. Marine birds switch from one to the other, often daily. Such flexibility requires unique physiological and morphological adaptations to the environment, a medium that has also exerted selective forces on the behavior, ecology, and demography of these birds.

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  • Lecture Marine environmental studies - Topic: Chemical aspects of the ocean. In this topic, the following content will be discussed: Effects of water on land, physical weathering, is there any difference between weathering and erosion? Biological characteristics of the ocean,...

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  • Lecture Marine environmental studies - Topic: Major marine pollutants. In this topic, the following content will be discussed: Oil, sewage, pesticides and other persistent organic chemicals, metals, radioactivity.

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  • Lecture Marine environmental studies, this topic provides knowledge of ocean dumping. In this chapter, the following content will be discussed: London Dumping Convention of 1972, what is dumping? Orientation, London protocol basic rules, current and future issues,...

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  • Lecture Marine environmental studies, this topic provides knowledge of MARPOL. The following will be discussed in this topic: Causes of major oil spills, history of MARPOL, Torrey Canyon, history of MARPOL 73, special areas for garbage,...

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  • Lecture Marine environmental studies - Topic: Environmental impact assessment. In this chapter, the following content will be discussed: EIA, what is EIA? Data used in EIA, secondary data analysis, the steps in an EIA, which projects require EIA?...

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  • Assessment of source of air, water, and land pollution - Part II : Approaches for consideration in formulating evironmantal control strategies.The environment is a combination of natural factors and social surrounds the outside of a certain system. They affect this system and identify trends and status of its existence. Environment can be seen as a set, in which the system is considered as a subset. Environment of a system is considered to be interactive with that system

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  • Monitoring the environment for metals has become a topic of considerable importance, not only to those industries emitting heavy metals but also to surveillance agencies and other organizations assessing the impact of metals on the environment. Our goal is to provide a comprehensive and easyto- read text for anyone working in the environmental analytical chemistry arena and to provide essential information to consultants and regulators about analytical and quality control procedures helpful in their evaluation and decision-making procedures.

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  • Importance of Coral Reefs: 0.2% of world’s ocean. Habitat for 1/3 of marine fishes. Habitat for tens of thousands of other animals. The rainforests of the oceans. Destruction of other ecosystems upon which coral reefs depend. Possible disruption of reproduction and recruitment.

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  • As a wetland of international importance located in China, the Poyang Lake Basin's incredible topographical and biological diversity has provided a congregating point for scientists from around the world to engage in cross-disciplinary research. In particular, the International Conference on Poyang Lake Complex Environment System was instrumental in bringing together scholars from China, North America, and Europe to explore the latest innovations in water resource science and watershed management.

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  • A compilation of the most important aerosol chemical processes involved in known scientific and technological disciplines, Aerosol Chemical Processes in the Environment serves as a handbook for aerosol chemistry. Aerosol science is interdisciplinary, interfacing with many environmental, biological and technological research fields. Aerosols and aerosol research play an important role in both basic and applied scientific and technological fields. Interdisciplinary cooperation is useful and necessary.

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  • The environment is key to sustaining human economic activity and well-being, for without a healthy environment, human quality of life is reduced. Most people would agree that there are also many reasons to protect the environment for its own inherent worth, and especially to leave a legacy of fully functioning natural resources. Sustainable land management refers to the activities of humans and implies that activity will continue in perpetuity. It is a term that attempts to balance the often conflicting ideals of economic growth and maintaining environmental quality and viability....

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  • Technological innovation prompted by the need to satisfy the changing needs of society, ever more effi ciently and economically, involves complex interactions between three basic systems: the production system, the economic system, and the ecosystem

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  • Statistical models are empirical. Although they are derived from observations, the relationship described must have a basis in our underlying understanding of processes if we are to have faith in the predictive capabilities of the model (National Research Council 2000).

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