摘要：全球气象是一个巨大的水和能量循环系统。如果一个系统内部有一个正反馈过程，系统就会不稳定甚至自行崩溃。青藏高原的虹吸效应将欧亚大陆中心的水分排到海洋，形成大气中一个正反馈过程，这样正反馈过程加剧了欧亚大陆变暖，消融了青藏高原的冰川，助长了中亚和中国北方的沙漠化过程。中国酝酿中的大西线工程若得以实施，将扭转这一危害性效应，有助于恢复中亚和中国北方生态平衡，缓解环球气候变暖过程。
关键词：南水北调；大西线；全球变暖；青藏高原；沙漠化
中图分类号：P463 文献标识码：A 文章编号：1672-1683（2007）01-0074-04
Siphon Effect of the Qinghai-Xizang Plateau on Water Cycle and Global Warming
GUO Xiao-ming
（Department of Physics and Computing ,Wilfrid Laurier University, Waterloo, Ontario N2L 3C5，Canada）
Abstract：
The global climate is a gigantic system cycling water and energy. A system is unstable and subject to breakdown if it evolves into a positive feedback. The Siphon Effect of the Qinghai-Xizang Plateau siphons water out of the center of the Eurasian continent and is a positive feedback process. If global warming is to be controlled, we have to collect moisture from the oceans, convert it into water and discharge it into the center of the Eurasian continent. To sustain the ecosystem, especially the biosphere of the continent, water has to complete the cycle from ocean back to the center of the continent, which is now prevented by the Siphon Effect of the Qinghai-Xizang Plateau. The conceived Grand West Route project in China is the most promising solution. It reduces global warming by cooling down the Eurasian landmass from the center and reverses a series of positive feedback.
Key words:South-to-Nouth Water Transfer; Grand West Route project; global warming Qinghai-Xizang Plateau
1 引 言
环球气候是一个在地球表面水循环和能量分配的系统。（剩余1553字）