Floods In Shaanxi, China


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Floods In Shaanxi, China

  1. 1. Content: Causes of Floods Consequences Actions, Responses & Solutions Effectiveness of Solutions Group Name: The Anti-Earn Flood (De An Ti Ern Flood) Group Leader: Goh Wei Ling Diana (7) Group Members: Chiam Shunting Denise (1) Lee Suen Ern (13) Nur Qistina Bte Ahmad (23) Wong Jo-Anne (36) 1/P
  2. 2. Acknowledgement <ul><li>http://www.hi-performance-group.com/images/china_outline.gif </li></ul><ul><li>http://dictionary.reference.com/browse/flood </li></ul><ul><li>http://library.thinkquest.org/10136/floods/flootq.htm </li></ul><ul><li>http://www.houstontx.gov/oem/flood.html </li></ul><ul><li>http://library.thinkquest.org/05aug/01412/lite/naturaldisasters/flood/consequences.html </li></ul><ul><li>http://google.com </li></ul><ul><li>http://yahoo.com </li></ul>
  3. 3. Causes of Floods <ul><li>Natural: </li></ul><ul><li>Heavy downpours; The water level rises and flows over the river bank, causing dry land to flood. </li></ul><ul><li>Global warming; Evaporation takes place at a faster rate and water vapour accumulates and condenses to form clouds. When the cloud gets too heavy, it causes heavy downpours, which also lead to floods. </li></ul><ul><li>Seasonal weather conditions; E.g. When there is a winter snowstorm, a great amount of snow is piled up and when a sudden heat wave arrives, the snow melts and causes floods. </li></ul>
  4. 4. Cont’d <ul><li>Coastal floodings; Results in severe storms, ocean waves intensify and water surfaces become choppier. This causes large waves which crashes into the beach, causing floods. </li></ul><ul><li>Tsunami; Cannot be easily detected as its waves are large and fast. </li></ul>
  5. 5. Causes of Floods <ul><li>Man-made: </li></ul><ul><li>Deforestation; Many trees are cut down and less vegetation is left to protect the soil and the soil falls into rivers, causing water level to rise. </li></ul><ul><li>Over-grazing; When too many animals graze at one spot, there will be less vegetation cover and soil is washed into the rivers. </li></ul><ul><li>Poorly-built dams; They easily give way and burst, collapsing and resulting in large floods. </li></ul>
  6. 6. Consequences <ul><li>Floods can kill crops which may lead to shortage of food, and eventually lead to death. </li></ul><ul><li>Loss of many dear ones as high water level causes drowning. </li></ul><ul><li>Destruction of homes which leaves thousands of flood victims homeless. Also, when a large group of people stay together at a place, bacteria passes much faster and more people get sick. </li></ul><ul><li>A great amount of money and resources would have to be put in to fix the damage done. </li></ul>
  7. 7. Actions, Responses & Solutions <ul><li>Floods control measures are attempted along a river at its headwaters and low-lying floodplains. </li></ul><ul><li>Run-offs are detained by planting ground cover on slopes. </li></ul><ul><li>Terraces are built to increase soil infiltration and prevent soil erosion. </li></ul><ul><li>Small dams and retaining ponds are built to reduce the flow of water. </li></ul>
  8. 8. Cont’d <ul><li>The provincial branch immediately distributed food items (e.g. rice, wheat flour etc.), clothes, tents, water etc. to the people whose homes were destroyed during the floods. </li></ul><ul><li>They also raised funds and bought purification tablets for the water. </li></ul><ul><li>The Red Cross Society of China (RCSC) also chipped in to help raise funds for the expenses and cost of the food, clothing, and equipment needed to repair the wreckage. </li></ul>
  9. 9. Effectiveness of Solutions <ul><li>The victims’ lives have improved since the floods as they are now living in better built houses. </li></ul><ul><li>The dams have been repaired and made stronger to withstand large amounts of water pressure. </li></ul><ul><li>There are still floods occurring due to natural conditions but the number has been greatly reduced. The last major flood in Shaanxi was in July 2008. </li></ul><ul><li>This shows that the solutions are indeed effective in reducing the number of floods and improving the lives of the people. </li></ul>
  10. 10. Thank you for your attention!