Threatened Species Management Plan for Kinglake National Park

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Threatened Species Management Plan for Kinglake National Park, – V 1.0, September 2001 2 Introduction In December 2009, Parks Victoria established a post-fire monitoring program across Kinglake National Park (the Park) and the Joey Creek, Stony Creek and Mt Disappointment Reference Areas (the study area). These areas were all variously affected by the February 2009 bushfire. Later in 2009 Parks Victoria requested that ABZECO assist with the project by re-assessing monitoring points, establishing new sites, undertaking flora survey and providing a set of management guidelines. These works were all undertaken in partnership with and under the guidance of members of Parks Victoria. This report provides a comprehensive assessment of the botanical values of the study area. It contains: Description of geology and landforms. Analysis of all flora species of local to national significance or interest (298 species). Sites of significance, including detailed discussion on all sites of state and national significance. Management guidelines to aid in post-fire recovery. An updated flora species list, including those recorded by the authors during the current survey period, previous records of the authors and records from other sources. Description of several new EVC’s recorded during the current survey period. The report also includes the results of flora surveys undertaken in the unburnt sections of the Park in the Goulburn Valley, where many significant species were recorded. 8
Threatened Species Management Plan for Kinglake National Park, – V 1.0, September 2001 3 Background 3.1 Study area The study area encompasses Kinglake National Park (21 600 ha) and three reference areas, including the Mt. Disappointment Reference Area (1090 ha), Stony Creek Reference Area (420 ha) and Joey Creek Reference Area (250 ha). These reserves occur between 60-70 kilometres to the north-east of Melbourne. The National Park is divided into three management units, including the Everard Block in the south-east, the Wombelano Block in the north and the Sugarloaf Block in the west. The management authority of these lands is Parks Victoria. The reference areas are managed by Parks Victoria in partnership with Melbourne Water. The Park boundary is an irregular shape and contains a high perimetre area ratio. It is surrounded by agricultural and residential lands and State forest (including Mt. Robertson State Forest to the north and Toolangi State Forest to the east). The study area occurs within two bioregions, with land on the southern side of the Divide occurring in the Highlands Southern Fall bioregion and land on the northern side occurring within the Highlands Northern Fall bioregion. The study area occurs within two Catchment Management Authority (CMA) regions, with land on the southern side of the Divide (Yarra River catchment) occurring within the Port Phillip CMA and land on the northern side (Goulburn River catchment) occurring within the Goulburn Broken CMA. The geographic positioning of Kinglake National Park at the western end of the Great Divide in south-central Victoria has created a significant juxtaposition of flora and fauna species. It is one of the few National Parks in the State to support elements of north, east, west and southern Victoria. The study area is depicted in Figure 1. 3.1.1 Physiography The Park occupies four major geological formations. These include Silurian mudstone/siltstone, Lower Devonian mudstone/siltstone, Devonian granodiorite and Quaternary recent stream alluvium. These formations are discussed below. Lower Devonian siltstone The land surface of the Park formed part of a marine sedimentary basin during the Devonian and Silurian periods, between 446 and 367 million years BP (Before Present). This surface was uplifted during the Cretaceous period (140-65 million years BP), which over time led to the formation of the current topography and drainage systems. Throughout most of the Park area the Silurian formation is overlain by the Devonian, except in parts of the Everard Block, Wombelano Blocks and at Mt. Disappointment. The Devonian surface includes a range of soil and vegetation types that vary in relation to aspect and rainfall. Silurian mudstone/siltstone Erosion of the overlying Devonian layers has led to exposure of older Silurian mudstone/siltstone in two narrow fingers running north-south through the Everard Block and a small section of the Wombelano Block. The first finger to the west extends from St. Andrews and runs directly one kilometre each side of the Heidelberg-Kinglake Road. The second finger to the east is approximately three kilometres wide and extends west of the township of Steels Creek to just north of Mountain Creek. This formation supports flora species and vegetation communities that are not found 9
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