岱海湖盆未来10年环境演变趋势探讨

本文在野外考察的基础上，对岱海湖心作了介形类、化学元素分析，并采用统计分析手段，探讨了环境变化的准周期和未来１０年演变趋势。本区短尺度环境演变以气候为主导因素，其变化主要与地球的天体运动准周期有关，不同尺度周期的叠加干扰和影响使气候变化将向凉干方向发展，但是干燥化的趋势将有比较明显的缓解。未来１０年气候变化的自然趋势将受到温室效应的一定影响。

ATTEMPT TO PREDICT THE TREND OF ENVIRONMENTAL EVOLUTION IN THE FUTURE TEN YEARS IN DAIHAI LAKE BASIN

Besides field survey we have drilled at the center of Daihai Lake.We analysed the ostracodas and chemical elements of the core.Through statistics,we obtained the minorcycles of environmental evolution of this region and attemt to predict the change in the future 10 years.The dominant factor of short-term environmental evolution of this region is climate.Its variation is related to the vicissitudes of Earth's movement.It seems that the superposition and mutual interference of cysles of change of different magnitude have led the climate to become cool and dry recently,but the dessication trend is obviously diminished.The climate of future 10 years will be affected to a certain extent by the green-house effect of increase of CO 2 content in the atmosphere.