The Three Rivers Source area provides 25% of the waters ithe Yangtze River， 49% of the Yellow River， and 15% of the extra-boundary waters of the Lancang River， thereby earning for itself the name 'The Water Tower of China'. However， irecent decades， the ecological environment of the Three Rivers Source has suffered severe damage due to a binatioof natural and humanfactors. Determined to avert catastrophe， China has invested extensively ia series of projects iecologicai. protectioand reconstruction， elevating the initiatives to a nationwide campaign. Sustained by the support of central government， the Qinghai provincial government， and variouslevels of local governments， and by the joint actioof all ethnic groups ithe project area， the riversare ithe process of rediscovering their former glory.
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