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六十年代初期,研究我国历史时期气候变迁,并涉及河南历史时期气候问题者,大体分两派:一是气候日趋干寒说;二是气候脉动说。 气候日趋干寒说认为,古代气候较今日温暖湿润,以后日趋干寒。蒙文通、胡厚宣是这一说的代表。①他们认定,华北地区(包括河南)上古时代的气候,比今天温暖潮湿,与今天的长江流域,甚至更南的地区相似。以后渐趋干寒,最终演变成今天的状况。他们根据的,是殷圩卜辞和《禹贡》、《周礼》、《尔雅》等古代文献中有关自然
In the early 1960s, studying climate change in the historical period of our country and involving the climate problems in historical periods in Henan Province generally divided into two groups: one is that the climate is increasingly dry and cold; the other is the climatic fluctuation. Climate is getting drier that the ancient climate warmer and humid than today, after the increasingly dry and cold. Mongolian, Hu Houxuan is the representative of this. They concluded that the climate in ancient times in northern China (including Henan) was warmer and wetter than today, similar to today’s Yangtze River basin and even more southward. After getting dry and cold, and eventually evolved into today’s situation. They are based on the Yin Wei divination and “Yugong”, “Zhou Li”, “Ella” and other ancient literature on nature