key;
Laboratory;
of;
Geographic;
Information;
Science,;
Ministry;
of;
Education,;
East;
China;
Normal;
University,;
Shanghai;
200062,;
China;
Key;
Laboratory;
of;
Desert;
and;
Oasis;
Ecology,;
Xinjiang;
Institute;
of;
Ecology;
and;
Geography,;
Chinese;
Academy;
of;
Sciences,;
Urumqi;
830011,;
China;
中国西北地区; 流域径流; 气候波动; 开都河; 河源区; 波动变化; 敏感性分析; 年降水量;