The problem of global environmental changes has been followed with great interest since 1986 When a program(IGBP)was scheduled by the International Council for Scientific Unions(ICSU). Palaeo-environmental research is...The problem of global environmental changes has been followed with great interest since 1986 When a program(IGBP)was scheduled by the International Council for Scientific Unions(ICSU). Palaeo-environmental research is to interpret the natural environment before literal historied time, which was beyond the observation of instruments and meters, in or-展开更多
The climatic change in the Quaternary period is characterized by the alternation of glacials and interglacials. Since the early 1970’s, the classic quadri-glaciation pattern has been gradually replaced by the concept...The climatic change in the Quaternary period is characterized by the alternation of glacials and interglacials. Since the early 1970’s, the classic quadri-glaciation pattern has been gradually replaced by the concept of multiple-glaciations. However, the problem of the total number of climatic cycles in the entire Quaternary still remains to be solved.展开更多
文摘The problem of global environmental changes has been followed with great interest since 1986 When a program(IGBP)was scheduled by the International Council for Scientific Unions(ICSU). Palaeo-environmental research is to interpret the natural environment before literal historied time, which was beyond the observation of instruments and meters, in or-
文摘The climatic change in the Quaternary period is characterized by the alternation of glacials and interglacials. Since the early 1970’s, the classic quadri-glaciation pattern has been gradually replaced by the concept of multiple-glaciations. However, the problem of the total number of climatic cycles in the entire Quaternary still remains to be solved.
