Coastal waters

Xem 1-20 trên 88 kết quả Coastal waters
  • The Baltic Sea is one of the most investigated water bodies in the world. For decades, the many highly industrialised nations around the Baltic have financed basic and applied investigations, as well as the building and development of research stations and vessels. After World War II, research in the Baltic Proper was intensified and investigations became much more international. The main goals of such investigations were analysis of the eutrophication and pollution of the Baltic Sea, and development of mitigating strategies (e.g. the HELCOM-Program).

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : Vertical migration of phytoplankton in coastal waters with different UVR transparency

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  • Society uses water to generate and sustain economic growth and prosperity, through activities such as farm- ing, commercial fi shing, energy production, manufactur- ing, transport and tourism. Water is important in deciding where we settle and how we use land. Water can also be a source of geo-political confl icts – in particular where water shortages occur. For our own well-being, not only clean drinking water but also clean water for hygiene and sanitation is crucial.

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  • This paper identifies five water environmental problems in the Delta that are the principal limiting factors of agricultural production and human health, i.e. (i) the salinity intrusion in the coastal areas, (ii) the effect of acid sulfate soils, (iii) the polluted water from human activities, (iv) the fresh water shortage in the dry season and (v) the flood in the rainy season. The discussion and conclusion present the people’s adaption strategies and water gorvernance issues in pursing sustainable management in the region.......

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  • Late in the year 1970, a major turning point occurred in my scientific career: I joined the staff of a federal fisheries research center at Sandy Hook, New Jersey. One of the principal programs of that center was to examine the effects of coastal pollution on productive systems of the oceans, especially effects on fish and shellfish resources.

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  • About 70% of the world’s population dwells in coastal zones. With the economic and population growth, the shortage in freshwater supply becomes increasingly acute. With surface water more and more depleted and polluted, coastal communities have turned to groundwater to make up for the shortfall. For domestic supply purposes, the percentage of groundwater use has increased to more than 40% on a worldwide basis.

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  • Water is an important natural resource which forms the core of the ecological system. Human use of water depends on ambient water quality and human alterations of the landuse have an extensive influence on water quality. Water is typically referred to as polluted when its quality is adversely affected by contaminants and undergoes a marked shift in its capability to support the biological communities. The book is written for research scholars, hydrologists and environmentalists and especially students....

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  • The main objective of the project is to develop and expand clam technology (production of seeds and livestock) to sustain the livelihoods of poor farmers in coastal North Central Province and develop a management strategy contributes sustainable water use clam aquaculture to improve the use of wastewater tomtrang camp. Significant progress has been made in this section. Key findings are listed below.

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  • The main objective of the project is to develop and expand technology clam (breeding and seed production) to maintain the livelihood of poor farmers in northern coastal The central provinces and develop a strategy to contribute sustainable fisheries environmental management by using clam aquaculture to improve shrimp farm effluent to use. In the first half of the second year, two production test clam (producing intertidal clam, clam production in the pond is crop rotation) and the parent test has been completed successfully....

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  • Water conservation encompasses the policies, strategies and activities to manage fresh water as a sustainable resource to protect the water environment and to meet current and future human demand. Population, household size and growth and affluence all affect how much water is used. Factors such as climate change will increase pressures on natural water resources especially in manufacturing and agricultural irrigation.

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  • Nitrogen contamination may come from a variety of sources: municipal sewage, animal manure, atmospheric deposition, biological N fixation, soil organic N, and/or nitrogen fertilizers. The consequences of contamination in a specific water body will depend upon the amount of contamination from all sources and characteristics of the receiving waters. Shallow rivers, wetlands, lakes, and reservoirs, have some capacity to remove nitrogen by microbial denitrification.

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  • This lab uses freshwater sponges as model organisms to examine the biological effects of water pollution. Specifically, the focus of this laboratory module is on the effects that chemicals of environmental concern (e.g., endocrine disrupters) have on sponge growth and development. Contamination of aquatic ecosystems is a serious issue in environmental science. Identifying which chemicals we should be concerned with, and determining the consequences of contamination by specific compounds, is a major area of current research.

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  • In 1972, the Clean Water Act (CWA) delineated the basic structure for regulating discharges of pollutants into waters and for establishing quality standards for surface waters under the authority of EPA [10]. Under the CWA’s National Pollutant Discharge Elimination System program, stormwater permits were required for sediment runoff from construction sites and discharges of pollutants into surface waters [11]. The permitting system requires adoption of technology-based and water quality-based effluent limits [11,12].

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  • The question of the origin of water on Earth, or the question of why there is clearly more water on the Earth than on the other planets of the Solar System, has not been clarified. There are several acknowledged theories as to how the world's oceans were formed over the past 4.6 billion years.

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  • The litho-hydrodynamic and environmental conditions in the Vietnamese coastal estuarine basin are significantly affected by the land-ocean-atmosphere interaction processes whish tide has a determining role. Application of the coupled 1D, 2D and 3D modeling system could resolve this complicated problem but it requires other solutions related with the boundary and coupling conditions.

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  • Cua Viet is the Thach Han river’s mouth. It is quite big estuary that is located in the central coastal province of Quang Tri. In which, Cua Viet port plays an important role for water transport and commerce of the province. In recent years, accretion and erosion have occurred increasingly in term of scale and intensity. In addition, estuarine access channels suffer severely from sedimentation.

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  • (Đánh giá chất lượng nước và các giải pháp tích hợp cho quản lý tài nguyên nước bền vững trên địa bàn tỉnh Sóc Trăng) This work aims to assess water resources for domestic and irrigation purposes in coastal areas of Soc Trang province- one of the most vulnerable regions in the Mekong Delta to climate change and sea level rise, especially along the coastal areas where is severely affecting by seawater intrusion.

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  • Phân tích những đặc điểm chính của chu trình sinh địa hóa vật chất trong vùng biển ven bờ Việt Nam trong đó thảo luận về sự biến đổi theo không gian và thời gian của các yếu tố hàm lượng sắc tố thực vật nổi năng suất sinh học dinh dưỡng nito và phospho

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  • If better management (BMP) was adopted in Vietnam there is evidence that the current trends and past environmental degradation can be stopped and even reversed, and shrimp production efficiency can be increased.

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  • The main objective of the project is to develop and expand clam technology (production of seeds and livestock) to sustain the livelihoods of poor farmers in coastal North Central Province and develop a management strategy contributes sustainable water use clam aquaculture farms to improve water use thai.Trong tomtrang six months, the focus of the project is focused in the following two aspects. (1) Prepare and create favorable conditions for the agreement between stakeholders and research organizations to carry out 'on farm trials.

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