School;
of;
Geography,;
Beijing;
Normal;
University,;
Beijing;
100875,;
China;
School;
of;
Life;
and;
Geographic;
Science,;
Qinghai;
Normal;
University,;
Xining;
810008,;
China;
Institute;
of;
Geographic;
Sciences;
and;
Natural;
Resources;
Research,;
CAS,;
Beijing;
100101,;
China;
Key;
Laboratory;
of;
Western;
China's;
Environmental;
Systems;
(Ministry;
of;
Education),;
Lanzhou;
University,;
Lanzhou;
730000,;
China;
新石器时代文化; 气候变化; 晚全新世; 青海地区; 甘肃;