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À̸§ °ü¸®ÀÚ waterindustry@hanmail.net ÀÛ¼ºÀÏ 2023.12.06 Á¶È¸¼ö 355
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¡ºEnvironmental Research Letters¡»10¿ù 26ÀÏÀÚ¿¡ ¿¬±¸³í¹® ¹ßÇ¥



»çÁøÀº Åػ罺ÁÖ ºê¶óÁ¶½º °­ À¯¿ª ¸ð½À. [»çÁøÃâó(Photo source) = Tulane University]

 ¡ºÈ¯°æ ¿¬±¸ ȸº¸(Environmental Research Letters)¡» 10¿ù 26ÀÏÀÚ¿¡ ¹ßÇ¥µÈ Åø·¹ÀÎ ´ëÇб³(Tulane University)ÀÇ »õ·Î¿î ¿¬±¸¿¡ µû¸£¸é, ¿©·¯ °³ÀÇ ¼Ò±Ô¸ð ½ÀÁö¸¦ Á¶¼ºÇÏ´Â °ÍÀº Àú¼öÁöÀÇ È«¼öÁ¶Àý ´É·ÂÀ» °­È­ÇÒ ¼ö ÀÖ´Ù.  »çÁøÀº Åػ罺ÁÖ ºê¶óÁ¶½º °­ À¯¿ª ¸ð½À. [»çÁøÃâó(Photo source) = Tulane University]


 ¡ºÈ¯°æ ¿¬±¸ ȸº¸(Environmental Research Letters)¡» 10¿ù 26ÀÏÀÚ¿¡ ¹ßÇ¥µÈ Åø·¹ÀÎ ´ëÇб³(Tulane University)ÀÇ »õ·Î¿î ¿¬±¸¿¡ µû¸£¸é, ¿©·¯ °³ÀÇ ¼Ò±Ô¸ð ½ÀÁö¸¦ Á¶¼ºÇÏ´Â °ÍÀº Àú¼öÁöÀÇ È«¼öÁ¶Àý ´É·ÂÀ» °­È­ÇÒ ¼ö ÀÖ´Ù. 


Åػ罺 ºê¶óÁ¶½º °­(Brazos River) À¯¿ªÀÇ »ç·Ê ¿¬±¸¸¦ ÅëÇØ, ¿¬±¸¿øµéÀº 140°³ ÀÌ»óÀÇ ½ÀÁö ½Ã³ª¸®¿À¸¦ ¸ðµ¨¸µÇÏ°í, ±âÁ¸ ´ï°ú ¼º´ÉÀ» ºñ±³Çß´Ù. ±×µéÀº ÀÏ·ÃÀÇ ºÐ»êµÈ ½ÀÁö°¡ »ó´çÇÑ È«¼ö °¨¼Ò¿Í Ãß°¡ÀûÀÎ ÀúÀå·®À» Á¦°øÇÑ´Ù´Â °ÍÀ» ¹ß°ßÇß´Ù.


¸®ÆÈ »þ(Reepal Shah) Åø·¹ÀÎ ´ëÇб³ ¹ÙÀÌ¿öÅÍ ¿¬±¸¼ÒÀÇ ¼ö¼® ¿¬±¸¿øÀº ¡°¿ì¸®ÀÇ ºÐ¼®Àº ±âÁ¸ ÀÎÇÁ¶óÀÇ È¿À²À» °³¼±Çϱâ À§ÇØ ÀÚ¿¬ ±â¹Ý ¼Ö·ç¼ÇÀ» À̿롤¼³°èÇÏ´Â ¹æ¹ýÀ» Á¦°øÇÑ´Ù¡±°í ¸»Çß´Ù. ±×´Â ¡°ÀûÀýÇÏ°Ô ºÐ»êµÈ ½ÀÁö´Â ÀúÀå·®º°·Î ºñ½ÁÇÑ È«¼ö ¿ÏÈ­ È¿°ú¸¦ Á¦°øÇÑ´Ù¡±°í µ¡ºÙ¿´´Ù.


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Á¸ »çº¸(John Sabo) ¹ÙÀÌ¿öÅÍ ÀνºÆ¼Æ©Æ®(Bywater Institute)ÀÇ °øµ¿ ÀúÀÚÀÌÀÚ ÀÌ»ç´Â ¡°½ÀÁö Á¶¼ºÀÌ Àü·«ÀûÀ¸·Î ¼öÇàµÈ´Ù¸é ³ëÈÄÈ­µÈ Àú¼öÁö ½Ã½ºÅÛÀ» º¸¿ÏÇÒ ¼ö ÀÖ´Ù¡±¶ó¸ç ¡°°úÇÐ ±â¹Ý µµ±¸´Â ÀúÀå ÀáÀç·ÂÀÌ Å« ½ÀÁö¸¦ ½Äº°ÇÏ°í, ¼ø¼­¸¦ ÁöÁ¤ÇØ ÀÌÀÍÀ» ±Ø´ëÈ­ ÇÏ´Â µ¥ µµ¿òÀÌ µÉ ¼ö ÀÖ´Ù¡±°í µ¡ºÙ¿´´Ù. 


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[¿ø¹®º¸±â]


Study: Wetlands offer greater cumulative benefit for flood control


 

Adding multiple smaller wetlands to the landscape can make large reservoirs more effective at flood control, according to a new study from Tulane University published in Environmental Research Letters.


Using the Brazos River basin in Texas as a case study, researchers modeled more than 140 wetland scenarios and compared performance against existing dams. They found a series of decentralized wetlands provide significant cumulative flood reduction and additional storage.


¡°Our analysis provides science on how to plan nature-based solutions to improve efficiency of built infrastructure,¡± said lead investigator Reepal Shah, a research scientist at Tulane University¡¯s Bywater Institute. ¡°Properly sited wetland portfolios can provide comparable flood mitigation on a per-storage basis.¡±


Key findings of the study include:


• Multiple small wetlands offer greater cumulative benefit than a single large wetland of the same total area, highlighting the value of distributed natural infrastructure.


• Wetlands ranked by flood storage capacity and sequentially added to portfolios provide diminishing returns after approximately 30 sites, indicating not all wetlands perform equally.


• The top 18 wetlands could expand the basin's flood pool by 10% of the largest reservoir's capacity, showcasing wetlands' potential as complementary storage.


• An index comparing impact per unit storage found well-designed wetlands efficacy is comparable to existing dams in flood control efficacy.


"This suggests wetland construction may relieve pressure on aging reservoir systems if done strategically," said John Sabo, co-author and director of the Bywater Institute. "The findings can help practitioners identify robust wetland portfolios to sequence implementation and maximize gains."


The modeling framework couples established land surface and hydrodynamic models to assess flood mitigation outcomes under different wetland scenarios. The researchers plan to further refine the approach and engage stakeholders on utilizing natural infrastructure to improve basin flood resilience.


The findings have important implications for flood management strategies globally. By incorporating strategically placed wetlands into existing infrastructure, communities can enhance their resilience to flooding events. This approach not only provides additional flood storage capacity but also promotes the preservation and restoration of natural ecosystems.


[Ãâó = Åø·¹ÀÎ ´ëÇб³(Tulane University)(https://sse.tulane.edu/study-wetlands-offer-greater-cumulative-benefit-flood-control) / 2023³â 11¿ù 27ÀÏ]


[¿¬±¸³í¹® Ãâó = ¡ºEnvironmental Research Letters¡»(https://iopscience.iop.org/article/10.1088/1748-9326/acfdba) / 2023³â 10¿ù 26ÀÏ]

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