Classification of Taiwan forest vegetation

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Classification of Taiwan forest vegetation
出版類型SCI(Sciences Citation Index)
AuthorsSheng-Zehn Yang, 楊勝任
出版日期2013 / 1

Aim: We identify the main forest vegetation types in Taiwan, provide their
formal definitions and describe their species composition, habitat affinities and
Location: Taiwan.
Methods: A data set of 9822 vegetation plots with environmental characteristics
recorded in the field or derived from digital maps in GIS was compiled from
historical literature and an extensive field survey. Using expert knowledge,
6574 of these plots were used to build a classification into broad vegetation
types. The units of the resulting classification were formally defined using a
Cocktail determination key, which can be used for the automatic assignment of
newvegetation plots to these vegetation types.
Results: Twelve vegetation types of zonal forests and nine types of azonal forests
were distinguished. Zonal types in the subtropical region, from high mountains
to foothills, are Juniperus subalpine coniferous woodland, Abies–Tsuga
upper-montane coniferous forest, Chamaecyparis montane mixed cloud forest,
Fagusmontane deciduous broad-leaved cloud forest, Quercus montane evergreen
broad-leaved cloud forest, Machilus–Castanopsis sub-montane evergreen broadleaved
forest, Phoebe–Machilus sub-montane evergreen broad-leaved forest and
Ficus–Machilus semi-evergreen foothill forest. Zonal types in the tropical region,
from high mountains to foothills, are Pasania–Elaeocarpus montane evergreen
broad-leaved cloud forest, Drypetes–Helicia sub-montane evergreen broad-leaved
forest, Dysoxylum–Machilus foothill evergreen broad-leaved forest and Aglaia–
Ficus foothill evergreen broad-leaved forest. Azonal types are Illicium–Cyclobalanopsis
tropical winter monsoon forest, Pyrenaria–Machilus subtropical winter
monsoon forest, Diospyros–Champereia tropical rock-outcrop forest, Zelkova–Quercus
subtropical rock-outcrop forest, Pinus successional woodland, Alnus successional
woodland, Trema–Mallotus successional woodland, Scaevola–Hibiscus
seashore woodland and Kandeliamangrove.
Conclusions: The diversity of forest vegetation in Taiwan is strongly structured
by the temperature andmoisture gradient. Along the temperature gradient, five
altitudinal zones can be recognized. Azonal forest types develop at sites affected
by the winter monsoon, on steep slopes, rocky soils, in seashore saline habitats
and in places disturbed by fire, landslides and human activities. Zonal vegetation
contains a higher ratio of endemic and Pacific species and occurs in wetter habitats,
whereas azonal vegetation contains co-existing species from different
regions and usually occurs in drier habitats.

期刊名稱Applied Vegetation Science
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