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。
The quality and productivity of sedge pasture in the alpine meadow area are determined by the moisture ana nutrient of the soil.
高寒草甸莎草科草地的土壤水分和营养决定着草地质量及其生产能力。
The result shows that there are five main ecoregion types in Lhasa area, namely valley agriculture zone, mountain steppe, alpine meadow, snow and ice and rock, and lake.
结果表明，拉萨地区的主要生态环境类型包括河谷农业类型、山地草原类型、高山草甸类型及高山裸岩及冰雪类型。
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