The land resources of Cobourg Peninsula
by B. Wood and D. Sivertsen
Wood, B.; Sivertsen, D.; Conservation Commission of the Northern Territory
E-Publications; E-Books; PublicationNT
Made available via the Publications (Legal Deposit) Act 2004 (NT).; This report describes a land system survey over the Cobourg Peninsula broadly describing landform, soils and vegetation to assist the effective planning and management of the area as a National Park.
1. Introduction -- 2. Summary Descriptions -- 3. Land Systems -- 4. Soils -- 5. Vegetation -- Appendices -- Acknowledgements.
Land use -- Northern Territory -- Cobourg Peninsula; Vegetation mapping -- Northern Territory -- Cobourg Peninsula
Conservation Commission of the Northern Territory
iv, 80,  p. : col. ills. ; 30 cm.
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http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB77120E006B6E040CD9B0F274EFE; http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB77120E006B6E040CD9B0F274EFE [NTLIS Metadata Tool]
Grevi77ea angu7ata Gossypium cunninghamii Hovea 7ongifo7ia var pannosa Nypa fruticans (mangrove palm) and Acacia sp nov (un-described species) all of which are well represented on Cobourg Peninsula. A further function of a national park is to con?erve feat ures and species considered to be rare or threatened. Leigh et al (1981) list five specie,s in either of these categories which are found on the Peninsula, these are: Gronophy77um ramsayi Gossypium cunninghamii Nypa frut icans Breynia cernua and Habenaria hymenophy7 7 a. The Park al so contains exampl es of what are considered rare J , c omm un it ies. Two such commun it ies, the Nypa Frutic ans and Pisonia grandis ~orests are rare because of the rarity of the dominant species, whereas the Hydriaste7e wend7andiana Tall Closed Forest (see 6.3.4a) is rare because the requisite cond itions for its existence occur very infrequently. The conclusion to be drawn from the above is that the Cobourg Peninsula Aboriginal Land and Nationa,l Park is, botan ically, a very important conservation reserve. This importance 1 ies in its being representative at both the regional and sub regional level s and in its containing sever~l rare species and communities which are worthy of conservation. 5.5 Uses and Limitations of the Vegetation Map In any project which undet:takes to map the vegetation communit ies of a piece, of , land some 2,200 square kilometres in extent at a scal e of 1: 100, 000, theTe will be certa in inherent 1 imitat ions wh ich should be borne in mind. No such map ~an hope to represent the occurrence of small, iso lated communities, subtle cha,nges in the species composition of ,the upper stratum orJmost changes, whether they be subtle or dramatic, in the lower strata. This is the ca?e because the extrapolative mapping technique employed (see section 1.3) and the use of high level aerial - 45
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