Flowering phenology on altitudinal gradient in the Himalaya.

摘要

This paper presents the results of an attempt to assess the effect of altitude on flowering phenology of plants, particularly in 'high altitude,' such as the Himalaya. The paper establishes that at lower and mid-altitude, flowering phenology is a two-peak phenomenon; flowering peaks at lower altitude involve low percentage of species, but a higher altitude it involves higher number of species; and with increasing altitude monsoon season peak becomes more and more pronounced. Further, the paper suggests that an increase in altitude or latitude has a similar effect, to great extent, on the number of species contributing to peak flowering in high-altitude areas, though the effect of altitude can elevate peak flowering to 100% at 30-31 degrees N latitude in the Himalaya.