Vegetation and land unit survey of Gregory National Park, Northern Territory (N.T.)
P. Brocklehurst, P. Rampant, D. Van Kerckhof and B. Edmeades
Brocklehurst, Peter S; Northern Territory. Dept. Of Lands, Planning And Environment. Resource Capability Assessment Branch; Rampant, P.; Van Kerckhof, D.; Edmeades, B.
E-Publications; E-Books; PublicationNT; Technical report / Resource Capability Assessment Branch, Department of Lands, Planning & Environment ; no. 31/1996
Made available via the Publications (Legal Deposit) Act 2004 (NT).
Surveying -- Northern Territory -- Gregory National Park; Vegetation surveys -- Northern Territory -- Gregory National Park
Dept. of Lands, Planning and Environment
Technical report / Resource Capability Assessment Branch, Department of Lands, Planning & Environment ; no. 31/1996
1 v. (various pagings) : col. ill., maps (some folded) ; 30 cm.
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Distribution and habitat notes: This community occurs in the Victoria River region and also the westem section of the Park, on low hills and rises. The soils are lithosols and often gravelly, with approximately 20% quartz sandstone rock outcrop. Associated Vegetation type: Ebrevifolia woodlands (community 25) is found alongside and' down the lower slopes of hills. E.dichromophloia (community 48) usually occurs towards the ridges. Similar to community 50. Community 57 Eucalyptus terminalis sparse low open-woodland/grassland with Triodia wiseana open hummock grassland. Structural formula(Specht): L 1 Z2 H3 Eucalyptus terminalis is the dominant tree species in the upper stratum, generally occurring as scattered individuals. Low shrubs such as Acacia leptophleba and Grewia orbifolia occur in the mid-layer. The ground vegetation conSists of a Triodia wiseana open hummock grassland. Sehima nervosum may also be present. Other common Species in Decreasing % Frequency: Middle stratum-(50%) Hakea arborescens, Hakea cunningham ii, Dolichandrone heterophylla. Lower stratum: forbs-(100%) Cleome viscosa; (50%) Evolvulus alsinoides, Tephrosia phaeosperma. graminoids-(100%) Enneapogon polyphyllus, Panicum sp. Number of Samples: 2 Land Unit: 4C,4d Geology: Pbu, Pbt Mean Structural Formation Strata Upper Middle Ground Mode Lifeform tree shrub grass Mean cover (%CC) 3(1-5) 16(5-26) 40 Mean height (m) 5.5(3-8) 1.25(1-1.5) 0.4(0.2-0.6) Distribution and habitat notes: Found on the rock platforms and rock terraces of hills and low hills in the Wickham River region. Soils are shallow lithosols with 20% rock outcrops. Associated Vegetation type: Generally found in Triodia steppe (community 69). Thick patches of Hakea arborescens and Terminalia.arostrata occur. Community 58 grassland. Eucalyptus pruinosalow open-woodland with Aristida hygrometrica tussock 71
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Northern Territory. Dept. Of Lands, Planning And Environment. Resource Capability Assessment Branch ;
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