Pinaceae

Abies kawakamii (Hayata) T.Itô

A subtropical alpine fir restricted to a few areas in Taiwan. Climate change is likely to have a significant impact on this species. Currently it is assessed as Near Threatened

Distribution

A high mountain species, occurring between 2,400 m and 3,800 m a.s.l. in the central high mountains of Taiwan. The extent of occurrence is approximately 2,900 km² while the actual area of Abies dominated forest is estimated to be 20,000 ha (Shih et al. 2007). It is known from seven locations. At elevations above 3,000 m this species is the dominant tree and can form large stands.

Habitat and Ecology

Grows on montane slopes in grey brown podzolized soils and also on mountain yellow earth, both acid and usually rocky. The climate is temperate, super humid: above humid subtropical foothills the annual precipitation exceeds 4,000 mm, with maxima up to 10,000 mm, making the Taiwanese central high mountains one of the wettest mountain ranges in the world. There are some pure forests on the N and NE slopes at these high elevations (3,200 m to 3,600 m a.s.l.), or the species occurs mixed with scattered Pinus armandii var. mastersiana, Tsuga chinensis var. chinensis, Picea morrisonicola, and with Juniperus squamata var. morrisonicola at the upper limit of Abies. At lower elevations the forest becomes progressively more mixed with broad-leaved trees, e.g. Acer insulare, Trochodendron aralioides, Quercus semecarpifolia subsp. glabra, Ilex bioritsensis, and Eurya spp. Other conifers in this belt are Tsuga chinensis var. chinensis, which becomes more abundant than Abies kawakamii between 2,400 m and 3,000 m a.s.l., Pseudotsuga sinensis, and Chamaecyparis obtusa var. formosana, which is more abundant below 2,400 m.

Human Uses

The timber of this species was formerly exported to Japan, where it was used for general carpentry. It is little used for this purpose today in Taiwan.