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随着70年代世界各地严重干旱及洪涝灾害的不断发生,气候变化问题越来越受到各国政府的普遍关注。人们迫切要求了解各历史时期的气候变化情况及规律,并进一步根据历史气候的变化规律,预测出未来10年、50年的气候演变趋势。然而,目前对影响气候变化的各种天文因子的定量作用及相互制约的反馈影响尚未完全清楚,但其综合影响,却毫无保留地反映在某区长期的历史气候变化之中。因此,要
With the serious drought and flooding in the world in the 1970s, the issue of climate change has drawn more and more attention from all governments. People are urgently required to understand the climate change and laws in each historical period and to further predict the climate evolution in the next 10 years and 50 years based on the changing laws of historical climate. However, the quantitative effects of the various astronomical factors influencing climate change and the feedback effects of mutual restraint are not yet fully understood. However, their combined effects are unreservedly reflected in long-term historical and climate changes in a certain area. So, want