气候变暖对青藏高原腹地高寒植被的影响

研究区高寒植被碳同位素组成的研究,表明气候环境对高原腹地植被具有明显的控制意义。在此基础上,通过对研究区植被样方的研究,对该区植被在高原气候暖干化过程中的变化趋势进行了探讨。提出暖干化的气候(环境是区域植被退化的主因,并对研究区植被退化速率进行了推算(14.2km/10a)。以样方数据分析为依托,重新拟定了研究区内干旱湿润区分界线,获得该区植物碳同位素值拟合干湿界限的支持。通过对年代间干湿分界线位置的比较,对高原气候暖干化模式下植被的退化趋势进行了模拟。

The effects of climate warming on the alpine vegetation of the Qinghai-Tibetan Plateau hinterland

There is growing evidence within the environmental science community that our planet has entered a potentially catastrophic phase of human-induced global climate warming. Climatic studies demonstrate that the Qinghai-Tibetan Plateau has also exhibited a warming and drying trend in recent decades. We studied an area on the Tibetan Plateau located in the transition zone between Alpine Meadow and Alpine Steppe regions. Such zones are highly sensitive to environmental change and the concomitant adjustment of ve...