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介绍了ＩＧＢＰＳＡＣⅣ会议概况，特别是围绕ＩＧＢＰ的发展方向与现状评价作了具体阐述。
This paper introduces the general situation of IGBPSAC Ⅳ conference, especially elaborating on the development direction and status quo evaluation of IGBP.