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Vegetation, soils and management of 'Zara': a sandhill remnant on the Riverine Plain

Vegetation, soils and management of 'Zara': a sandhill remnant on the Riverine Plain,M. J. Stafford,D. J. Eldridge

Vegetation, soils and management of 'Zara': a sandhill remnant on the Riverine Plain   (Citations: 1)
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soils and management of 'Zara': a sandhill remnant on the Riverine Plain. Cunninghamia 6(3): 717-746. The 'Zara' exclosure (approximately 35°10'21''S, 144°41'59''E) is on a source-bordering dune on the Riverine Plain north of Deniliquin. The vegetation of this sandhill closely represents the original vegetation that once covered sandhills of the south-west Riverina prior to European occupation. Three vegetation communities comprising six associated Map Units were defined by cluster analysis within the 60 ha exclosure. These were the Callitris Mixed Woodland (Map Units 1, 2, 3, and 6), the Black Box Woodland (Map Unit 5) and the White-top Grassland (Map Unit 4). Seventy-seven taxa were recorded during the survey, and the vegetation was dominated by species from the families Chenopodiaceae and Poaceae. Three shrubs, the exotic weed Lycium ferocissimum and the natives Rhagodia spinescens and Enchylaena tomentosa occurred at more than 75% of sites. The distribution of vegetation communities was strongly associated with attributes of the soil (e.g. soil texture and organic carbon) and plant and litter cover. Vegetation communities occupying remnant sandhills such as the 'Zara' exclosure are some of the most vulnerable communities on the Riverine Plain.
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    • ...Wahgunyah State Forest, Finley 90 SFNSW (1996) Cobar* 47 Eldridge (1999) ‘Zara’, Deniliquin 70 Stafford and Eldridge (2000) Tottenham–Bobadah area 150 Shelly (2001) MIA, Griffith 150 Eldridge (2002) Savernake and Native Dog, Finley 194 Freudenberger and Stol (2002) Northwestern NSW 160 DIPNR (unpubl...
    • ...Rabbit grazing is also highly damaging to young pine seedlings (Lacey 1973; Curby 1997; Nicholson 1997; Allen 1998; Allcock and Hik 2004), reducing regeneration of rosewood and belah (Casuarina cristata) seedlings and increasing the spread of exotic shrubs such as African boxthorn (Lycium ferocissium; Stafford and Eldridge 2000)...
    • ...Overriding pressures from agriculture and irrigation have resulted in substantial change to much of the original C. glaucophylla woodlands, with the result that remnant communities are generally found only on rocky ridges, isolated sandhills (Stafford and Eldridge 2000) or in State Forests (Eldridge 2002)...

    W. A. ThompsonAet al. White cypress pine ( Callitris glaucophylla ): a review of its roles i...

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