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Groundwater overuse, climatic change threaten lives of 60 mln in Bangladesh expe

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2012-7-13
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2012-8-12
 楼主| 发表于 2012-7-14 16:28  ·  福建 | 显示全部楼层 |阅读模式
dhaka, jan. 16 (xinhua) -- unplanned restriction of groundwater and adverse impacts of climate alteration pose hazardous menace apt the lives plus maintenance of almost 60 million folk amid bangladesh, state-run newspaper agency bss reported monday, quoting leading water and environment experts.
water table of groundwater that declining fast due apt its extravagant use as irrigation among agri***ure sector,paul smith woman, which reasons salinity water intrusion,財布 ポールスミス, posing a solemn thereat to the ecosystem plus biodiversity of the southern chapter of the nation said md eftekharul alam, agri***ure, water and environment engineer of bangladesh agri***ural development corporation (badc).
he said in bangladesh, 80 percent of irrigation water and 98 percentage of drinking water namely collected from underground sources without appropriate learn and arranging.
"the groundwater namely the highest expensive natural resource of the nation if this resource namely dirty by saline water intrusion,ポールスミス 手帳, it will destabilize the edible security, the ecosystem and biodiversity of the southern part he added.
"over mining of groundwater of dhaka metropolis plus gazipur (a district beside the chief regions have accelerated the velocity of these intrusions. if depletion trend of groundwater of dhaka metropolis continues,ティンバーランド パーカー, it may be filled among by salt water plus thus cause the metropolis dwellers to migrate deserving to the shortage of fresh water,ティンバーランド ブラック," alam said.
according to dhaka water supply and sewerage authority (wasa), its absolute water production namely two,100 million liters per day for nearly 12.five million dhaka city dwellers of which 87.72 percent namely groundwater and 12.28 percentage namely surface water.
the wasa said groundwater desk is declining by 2-3 meters among dhaka metropolis each annual deserving apt overuse.
however, alam said sea water class namely increasing deserving to the prejudicial clash of climate alteration which that responsible for saline water intrusion amid coastal zones of the nation sea water is likewise accessing apt taint among coastal areas affable as water class of groundwater namely going down gradually, creating a negate clash aboard agri***ure sector, he added.
professor umme kulsum navera of department of water resources engineering of bangladesh university of engineering and technology (buet) said lack of affluent stream of surface water plus revise folk induced risks in coastal districts have additional the intensity of salinity aboard taint which has established a serious menace to the farming sector plus nature.
she said many countries including australia have stopped the use of groundwater as irrigation apt maintain ecological equilibrium"we ought diminish dependency aboard groundwater for both drinking plus irrigation to safeguard our nature plus agri***ure sector from anyone kind of destruction."
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