Petrochemical;
College;
of;
Technology,;
Lanzhou,;
Gansu;
730060,;
China;
and;
Arid;
Regions;
Environmental;
and;
Engineering;
Research;
Institute,;
Chinese;
Academy;
of;
Sciences,;
Lanzhou,Gansu;
730060,;
China;
University;
of;
Science;
and;
Technology,;
Luoyang,;
Henan;
471003,;
China;
非结构性碳水化合物; 祁连圆柏; 青海云杉; 高海拔; 祁连山; 叶面; 中国; 植物响应;