Abstract:
The objective of this study was to investigate the adaptability of lianas to different light environments in subtropical evergreen broad-leaved forest of Ailao Mountains, Yunnan province, China. 2-year-old liana seedlings of 6 heliophile lianas (
Rosa longicuspis,
Actinidia callosa,
Celastrus angulatus,
Holboellia latifolia,
Kadsura coccinea,
Parthenocissus himalayana) and 5 skiophyte lianas (
Euonymus vagans,
Jasminum urophyllum,
Hydrangea anomala,
Heterosmilax japonica,
Embelia procumbens) were grown in different light environments (filed, forest edge, forest interior) with the photosynthetic characteristics of each species being studied. The results showed that from field, edge to the forest interior, the
Pn, WUE,
Tr,
Pmax, LSP, LCP and
Rd of all 11 species liana showed a downward trend,
Ci, AQY,
Amax,
Rp and CE showed an upward trend, besides the measured values of the 6 sun-adapted taxa was greater than that of other 5 shade-adapted taxa. On the basis of the photosynthetic characteristics, the adaptability to full light of
Parthenocissus himalayana,
Rosa longicuspis,
Actinidia callosa and
Celastrus angulatus were the strongest among 11 species of liana. The adaptability to weak light of
Embelia procumbens,
Euonymus vagans and
Hydrangea anomala were the strongest.
Kadsura coccinea,
Holboellia latifolia,
Heterosmilax japonica and
Jasminum urophyllum were in the middle of them.