The efficiency of energy conversion of PAR is 0.58% more or less in plant community of Haibei alpine meadow area.
同时计算表明，海北高寒草甸地区植物群落对PAR的光能利用率为0 .5 8%左右。
2
Grass production of Alpine Meadow is highly negatively correlated with winter-spring air temperature of Haibei at Qilian mountain.
祁连山海北地区冬春气温与高寒草甸牧草产量具有很高的反相关关系。
3
Cyclic sampling design was used to investigate leaf area index(LAI)in flux contributing source of eddy covariance flux tower swamp ecosystems of Haibei.