One of the World’s great environmental problems - Water The water problem is today one of the greatest problems the world faces. The UN calculates that if the present development continues the 2/3 of the world population will live with serious water scarcity or nearly without water by the year 2025. The UN calculates that one should have 100 litres of water pr day to manage. This is for everything - home consumption‚ agriculture‚ industry‚ etc. Many people today have less than 50 litres‚ and in
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EROSION VULNERABILITY ASSESSMENT IN MINNA‚ NIGER STATE By Adewuyi Babatunde CENTER FOR DISASTER RISK MANAGEMENT AND DEVELOPMENT STUDIES FEDERAL UNIVERSITY OF TECHNOLOGY‚ MINNA‚ NIGER STATE +234 8068166939 EMAIL: ADEX22NG@YAHOO.COM Abstract Natural events such as erosion can be hazardous to man. The disasters that natural hazards can cause are largely the result of actions by man that increase vulnerability‚ or lack of action to anticipate and mitigate the potential damage of these
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to rain-induced hazards in the form of flash flood‚ cloudburst or glacial lake outburst flood. Many Himalayan natural hazards are earthquakes‚ tsunamis‚ hurricanes‚ flooding‚ coastal erosion‚ etc. An earthquake is a process that results from a sudden release of stored energy that radiates shock waves. Coastal erosion is a physical process by which seashores in coastal areas around the world shift and change‚ primarily in response to waves and currents that can be influenced by tides. A flood results
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Narrabeen is a beachside suburb located on Sydney’s northern beaches with a population of just over 6000 people. It is known for its long stretch of beach‚ over 3 kilometres‚ with four beaches on this stretch: North Narrabeen‚ Narrabeen‚ South Narrabeen and Collaroy. The Narrabeen coastal environment consists of these beaches as well as the lagoon located at the north end of the beach. Surrounding areas are on a floodplain‚ meaning that high sea levels‚ large amounts of rain and runoff from nearby
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hill it is called a landslide. Landslides are caused by rain and melting snow that goes into cracks in the earth on top of a mountain or hill. Then the earth is weakened because the water makes the soil loose. Landslides can also be caused by erosion. Erosion is when things like a river or mining slowly eats away the bottom of a hill or slope. The top of the hill is no longer supported by the bottom. The loose soil can be set off by things like mine explosions‚ thunder‚ traffic noise‚ earthquakes
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state‚ the mineral salts may be washed away. 6. Burning: This kills soil organisms‚ destroys the texture and structure of the soil and finally reduces plant nutrients. 7. Erosion: This helps in washing away of soil nutrients from one place to another‚ and may occur under the influence of heavy rain or wind storm. Erosion Soil is a natural body consisting of layers of primarily mineral constituents‚ which differ from the parent materials in their texture‚ structure‚ consistence‚ color‚ chemical
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North-West China has more than 60% of China’s poor people living there. The environment and location there is suffering from many problems such as serious soil erosions and desertification of the land. One example is the Loess Plateau in the North of China which is a barren land filled with ravines and gullies everywhere. Therefore‚ I agree to a certain extent that the North-West China has been poor due to its location. As the region is nearer towards the West‚ the North-West region is arid and
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river’s long profile (15 MARKS) Upper - Erosion - Vertical - Weak Erosion but strong Velocity In the upper stage of the river’s long profile‚ there is mainly vertical erosion and by abrasion. Erosion occurs when there are high-energy conditions and discharge are high after heavy rain or ice melt. The rough channel from the high velocity causes turbulence and the large‚ angular bedload is dragged along the river bed‚ causing intense downwards (vertical) erosion. Mainly large particles such as boulders
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Soil erosion and management on the Loess Plateau 作者： 作者单位： 刊名： 英文刊名： 年，卷(期)： 被引用次数： CAI Qiang-guo Institute of Geographic Sciences and Natural Resources Research‚ CAS‚ 地理学报(英文版) JOURNAL OF GEOGRAPHICAL SCIENCES 2001‚11(1) 6次 参考文献(23条) 1.Chen Yongzong;Jing Ke;Cai Qiangguo Modern Erosion and Management 1988 2.Lal R Soil erosion by wind and water: problems and proposals 1988 3.Shi Nianhai Loess Plateau and evolution of its agro-forest distribution area 1981 4.Zhu Kezhen Preliminary study of climate
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P.E. Potter J. B. Maynard P. J. Depetris Mud and Mudstones Introduction and Overview With 261 Figures and 48 Tables !j~ Springer LIBRARY CONCORD UNtVERSITY ATHENS‚ WEST VIRGINIA ~ OS ~ Paul E. Potter University of Cincinnati Department of Geology Cincinnati 45221-0013 Ohio USA J. Barry Maynard University of Cincinnati Department of Geology Cincinnati 45221-0013 Ohio USA Pedro J. Depetris Centro de Investigaciones Geoquimicas y de Procesos de la Superficie (CIGeS)‚ FCEFyN
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