苏联正在规划中的“北水南调”,即将苏联欧洲部分流入北方海域的一些河流(简称北坡水系)和西伯利亚鄂毕河的水调往苏联欧洲部份的南部地区(简称南坡)、中央草原地带和中亚地区,规模宏大,十分复杂。设想的远景调水量为450～850亿立米/年;调水距离几千公里,跨越几个不同的自然区和生态区,涉及地域达百万平方公里;还有里海、咸海和亚 The Soviet Union is planning a “north-south water diversion project” in which some of the rivers flowing into the northern waters of the Soviet Union (the northern slope) and the water of the Siberia o-river are transferred to the southern part of the Soviet Union (south slope) Central Plains and Central Asia, large-scale, very complicated. It is envisaged that the long-term water diversion volume will be 450-850 billion cubic meters / year; the water diversion distance will be several thousand kilometers spanning several different natural and ecological zones covering a million square kilometers; and the Caspian Sea, Aral Sea and Asia