Stand dynamics during a 12 year period in an old-growth,cool temperate forest in northern Japan |
| |
Authors: | Kanji Namikawa |
| |
Institution: | (1) Biological Laboratory, Sapporo College, Hokkaido University of Education, OO2 Sapporo, Japan |
| |
Abstract: | In 1979 and 1991, trees over 2.0 m high were measured and mapped together with their crown projections to clarify stand dynamics
and shifts in canopy dominants during this period, in a permanent plot of 0.525 ha in an old-growth, cool temperate mixed
forest of Mt Moiwa, Central Hokkaido, northern Japan. During this period, an abundant recruitment of trees was observed after
some canopy trees were felled by a typhoon in 1981 leaving gaps in the canopy. Vigorous recruitment was observed forTilia japonica, Acer mono andPrunus ssiori. These species had different regeneration sites in relation to canopy state. NeitherUlmus japonica norKalopanax pictus had any recruits during the 12 year period even in gaps. The equilibrium composition of tree species projected from transition
probability analysis also implied the above shift of dominant species during the 12 year period in the plot and suggested
that the present forest is not in an equilibrium state. |
| |
Keywords: | canopy state non-equilibrium community old-growth cool temperate forest permanent plot transition probability analysis |
本文献已被 SpringerLink 等数据库收录! |
|