【摘要】 冰川棘豆主要分布西藏阿里地区,该地区所处纬度较低,海拔高,气温低,气温日差较大,降水稀少,空气稀薄、太阳辐射角度大,能接受较多的阳光照射,获得丰富的光能和热量。草原以高寒草原为主,土壤质地粗,土壤养分、含水量低,抗灾能力差,容易引起草场退化,使抗逆性强的冰川棘豆等伴生草种滋生蔓延,成为优势种。更多还原

【Abstract】 Oxytropis. glacialis is distributed in the area of Ali, Tibet. Ali is a lower latitude and higher elevation region, has lower temperature, quite little rain, bigger temperature difference in a day, thinner air and bigger the sun radiation angle. For those reasons, the earth can accept more light and hot. The most grassland belongs to high cold grassland. The soil is coarse that contains little water. The grassland has lower ability to fight against natural calamities that causes the grassland deterioration. Oxytropis.glacialis has good adaptability that make it became superiorior species from accompanying species.更多还原