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Jarrah Forest : ウィキペディア英語版 | Jarrah Forest
Jarrah Forest is an interim Australian bioregion located in Western Australia.〔(IBRA Version 6.1 ) data〕 This bioregion has been split into two subregions for ease of management and research; Northern Jarrah Forest (JAF01) and Southern Jarrah Forest (JAF02). == Location and description ==
The bioregion stands on the Yilgarn block inland plateau and includes wooded valleys such as those of Western Australia's Murray River and the Helena River near the city of Perth as they descend from the Darling Scarp that overlooks the west coast. On the west coast further south the jarrah forest region also covers the Leeuwin-Naturaliste Ridge. At the southern end of the plateau stands the Whicher Range and the lower Blackwood Plateau inland from there. The eastern interior of the region includes the peaks of the Stirling Range, now preserved within Stirling Range National Park. The name refers to the region's dominant ecosystem: jarrah forest; that is, a tall, open forest in which the dominant overstory tree is the jarrah (''Eucalyptus marginata''). Soils in the jarrah forest are fertile, but often salt laden. The area has a warm Mediterranean climate, with more annual rainfall () on the scarp than inland or to the north-east ().〔
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