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µ¶ÀÏÀÇ ÇÑ ¿¬±¸ÁøÀº ¼ö·Â¹ßÀüÀ» ÅëÇÑ Àü±â»ý»êÀÌ Áö¼Ó°¡´ÉÇÒ ¼ö ÀÖµµ·Ï ÀÇ»ç°áÁ¤À» Áö¿øÇÏ´Â »õ·Î¿î µ¥ÀÌÅͺ£À̽º¸¦ °³¹ßÇÏ¿´´Ù. ±×¸®°í ÀÌ µ¥ÀÌÅͺ£À̽º´Â ÄÚÆæÇÏ°Õ´ëÇÐ(University of Copenhagen)ÀÌ ÁÖ°üÇÏ´Â ±¹Á¦ Global Challenges: Achieving Sustainability ÃÑȸ¿¡¼­ ¼Ò°³µÇ¾ú´Ù. Àç»ý°¡´É ÀÚ¿øÀ¸·ÎºÎÅÍ »ý»êµÈ Àü±â¿¡ ´ëÇÑ °­·ÂÇÑ ¼ö¿ä·Î ÀÎÇØ ¼ö·Â¹ßÀü °³¹ßÀº »õ·Î¿î ½Ã´ë¸¦ ¸ÂÀÌÇÏ°í ÀÖ´Ù. ¼ö·Â¹ßÀüÀº ±× µ¿¾È Å« ¼ºÀåÀ» º¸¿©ÁÖÁö ¸øÇÏ¿´À¸³ª Àü·Ê¾ø´Â Àü±â»ý»ê¿ë ´ïÀÌ Àü¼¼°èÀûÀ¸·Î °Ç¼³ ÁßÀ̰ųª °èȹ Áß¿¡ ÀÖ´Ù.

ÀÌ·¯ÇÑ ºÕÀº ³²¹Ì, µ¿³² ¾Æ½Ã¾Æ, ¾ÆÇÁ¸®Ä«¿Í °°Àº °³¹ß µµ»ó±¹¿¡¼­ ¿ì¼±ÀûÀ¸·Î ¹ú¾îÁö°í ÀÖ´Ù. ±×¸®°í ÀÌ·¯ÇÑ Áö¿ªµéÀº ´ã¼ö¼º »ý¹°ÇÐÀû ´Ù¾ç¼º¿¡ ÀÖ¾î °¡Àå Áß¿äÇÑ Áö¿ª Áß ÇϳªÀ̱⵵ ÇÏ´Ù. µ¶ÀÏ Æ¢ºù°Õ ´ëÇÐ(Universitat Tubingen)ÀÇ Christiane Zarfl ±³¼ö´Â ¡°¼ö·Â¹ßÀüÀº Àç»ý°¡´É ¿¡³ÊÁö·ÎÀÇ Àüȯ¿¡ ÀÖ¾î ÅëÇÕ ºÎºÐÀÌÀÚ Àç»ý°¡´É Àü±â Áß °¡Àå Å« ºñÁßÀ» Â÷ÁöÇÏ°í ÀÖ´Ù. ±×·¯³ª ¼ö·Â¹ßÀü ´ïÀÌ ¹°ÀÇ È帧°ú ÅðÀû¹°ÀÇ º¯È­ ¹× ºØ±«¸¦ À¯¹ßÇÏ¿© Àü¼¼°è ´ã¼ö ½Ã½ºÅÛÀÇ »ý¹°´Ù¾ç¼º¿¡ »õ·Î¿î ¹®Á¦¸¦ ÀÏÀ¸Å°Áö ¾Êµµ·Ï ÇÏ´Â °ÍÀÌ Áß¿äÇÏ´Ù. µû¶ó¼­ ¹Ì·¡ ¼ö·Â¹ßÀü¿ë ´ï°ú °ü·ÃÇÏ¿© ¾î´À Àå¼Ò¿¡ ¾î¶»°Ô °Ç¼³ÇÏ°í, ¾î¶»°Ô Çϸé À̵éÀ» Áö¼Ó°¡´ÉÇÏ°Ô ¿î¿µÇÒ ¼ö ÀÖÀ» °ÍÀΰ¡¸¦ Æò°¡Çϱâ À§ÇÑ µ¥ÀÌÅͺ£À̽º¸¦ ÀÛ¼ºÇÏ¿´´Ù¡±°í ¼³¸íÇÏ¿´´Ù.

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IGBÀÇ Klement Tockner ¹Ú»ç´Â ¡°»õ·Î¿î ´ïÀÌ °Ç¼³µÇ¸é °­ À¯¿ª³»¿¡ ÀÖ´Â ´Ù¾çÇÑ ´ïµéÀÇ »ýÅÂÇÐÀû, »çȸÀû, °æÁ¦Àû ¿µÇâÀ» °í·ÁÇÒ ¼ö ÀÖ´Â Á¶Á÷ÀûÀÎ °ü¸® ¹æ¾ÈÀÌ Áß¿äÇÏ´Ù¡±°í ¹àÇû´Ù. Christiane Zarfl ¹Ú»ç´Â ¡°¿ì¸®´Â Àü¼¼°è ´ã¼öÈ­ »ý¹°´Ù¾ç¼ºÀ» À§ÇÑ Ç÷§ÆûÀÎ BioFresh¿¡ µ¥ÀÌÅͺ£À̽º°¡ °¡µ¿Çϱ⸦ ±â´ëÇÏ°í ÀÖ´Ù. ±×¸®°í °úÇÐÀÚ ¹× ÀÇ»ç°áÁ¤Àڵ鿡°Ô Áö¼Ó°¡´ÉÇÑ ¼ö·Â¹ßÀü °³¹ßÀ» ÇÒ ¼ö ÀÖµµ·Ï µµ¿òÀ» ÁÖ´Â °¡Ä¡ ÀÖ´Â ±â¹ÝÀÌ µÇ±â¸¦ ¹Ù¶õ´Ù¡±°í ¸»Çß´Ù.

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Global boom in hydropower expected this decade

An unprecedented boom in hydropower dam construction is underway, primarily in developing countries and emerging economies. While this is expected to double the global electricity production from hydropower, it could reduce the number of our last remaining large free-flowing rivers by about 20% and pose a serious threat to freshwater biodiversity.

A new database has been developed to support decision making on sustainable modes of electricity production. It is presented today at the international congress Global Challenges: Achieving Sustainability hosted by the University of Copenhagen.

The intensified demand for electricity from renewable sources has kick-started the hydropower development into a new era: Following a period of a flattening trend, an unprecedented number of dams for electricity production is currently under construction or planned worldwide. However, the boom occurs primarily in developing countries and emerging economies in South America, Southeast Asia and Africa, that also hold some of the world's most important sites for freshwater biodiversity.

"Hydropower is an integrated part of transitioning to renewable energy and currently the largest contributor of renewable electricity. However, it is vital that hydropower dams do not create a new problem for the biodiversity in the world's freshwater systems, due to fragmentation and the expected changes in the flow and sediment regime. That is why we have compiled available data on future expected hydropower dams - to form a key foundation for evaluating where and how to build the dams and how to operate them sustainably", says Prof. Dr. Christiane Zarfl (now Universität Tübingen) who, together with her colleagues, performed the study at the Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB) in Berlin. She is presenting the database today at the congress Global Challenges: Achieving Sustainability.

Hydropower may double in electricity capacity

Renewables account for 20% of the global electricity production today, with hydropower contributing 80% of the total share. An expected 3700 major dams may more than double the total electricity capacity of hydropower to 1,700 GW within the next two decades.

Given that all planned dams are realized, China will remain the global leader in hydropower dam construction although their share of total future global hydropower production will decline from currently 31% to 25%, due to increases in other parts of the world.

The Amazon and La Plata basins in Brazil will have the largest total number of new dams in South America, whereas the Ganges-Brahmaputra basin (mainly India and Nepal) and the Yangtze basin in China will face the highest dam construction in Asia.

"When building new dams, it is important to follow a systematic management approach that considers the ecological, social, and economic consequences of multiple dams within a river basin", says Prof. Dr. Klement Tockner, head of IGB, who is leading the Institute¢¥s research activities on sustainable hydropower development.

"We expect to launch the database in BioFresh, the platform for global freshwater biodiversity and hope to see our results as a valuable reference basis for scientists and decision makers in supporting sustainable hydropower development", says Prof. Dr. Christiane Zarfl.
 
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