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Vegetation-radiation relationships in the wet-dry tropics: granite hills in northern Australia

✍ Scribed by J. B. Kirkpatrick; R. J. Fensham; M. Nunez; D. M. J. S. Bowman

Publisher: Springer Netherlands
Year: 1988
Tongue: English
Weight: 544 KB
Volume: 76
Category: Article
ISSN: 1385-0237
DOI: 10.1007/bf00045472

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✦ Synopsis

A model of direct and diffuse solar radiation on slopes of varying angle and aspect suggests that radiation differences within hilly terrain are maximized in the beginning of the dry season in the monsoon tropics. The differences between north and south facing slopes are greater than those found during the summer in the temperate zone. Within a study area near Mt. Bundey, Northern Territory, floristic and structural vegetational variability is closely related to June radiation as estimated by the model. However, the distribution patterns of monsoon thicket and eucalypt forest relate more to relative fire protection than to the effects of incident radiation on temporal patterns of moisture availability. Within both major formations, site rockiness is an important influence on vegetation floristics and structure, both for fire protection and through its influence on moisture availability.

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