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4/3/2019 SIX Maps
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Vegetation AssessmentNative vegetation in and around Lake Mulwala was the focus of a study undertaken by the Murray-Darling Freshwater Research Centre in 2004-2005.
The study was part of a broader Water Quality Study on Lake Mulwala which reviewed existing literature on the health of the lake, assessed current conditions and made recommendations for future monitoring.
The study found, apart from the Everglades region, vegetation around most of the lake consists of a narrow strip. This strip, known as the riparian zone, is stressed and in poor condition, due to human-induced activity in surrounding areas. The zone consists mostly of mature River Red Gums (Eucalyptus camaldulensis) and at the western end, exotic tree species such as Weeping Willow (Salix babylonica).
Healthy native vegetation is an essential component for healthy waterways. At Lake Mulwala it provides important ecosystem functions such as:
• Filtering runoff of sediments, nutrients and other pollutants to the lake;
• Habitat for native bird, animal and fish species; and
• Stabilising the lake bed and banks to prevent erosion.
Improved ecological health of Lake Mulwala is a key objective of the Lake Mulwala Land and On-Water Management Plan. The study provided a detailed baseline of information on the current state of vegetation. This will be used to enable better management and the development of an ongoing monitoring program.
This brochure is part two of a series outlining information on the vegetation assessment component of the study.
For the purpose of the study, the lake was divided into three main regions including the Main Basin at the western end of the lake, the Central Lake Region and the Upper Eastern Lake region known as the ‘Everglades’ where the River Murray meets the Lower Ovens River.
A Geographic Information System was used combined with on-ground assessment and sampling techniques to assess the health of the riparian and aquatic vegetation.
Assessments confirmed the Everglades region exhibits vegetation of high ecological value that requires careful management and protection. The high diversity (30 species recorded) and abundance, good condition and ongoing regeneration of in-channel vegetation provides healthy habitat for native animals.
The study found:
• About 400 ha of land at Lake Mulwala is vegetated, although more than a third of the lake’s edge is not vegetated;
• At least 33 different aquatic and riparian species were observed;
• Riparian vegetation is relatively healthy in the Everglades region but ecological value declines from east to west;
• In the Central Lake region, riparian vegetation mostly consists of a single row of trees. Although Kyffins Reserve takes in a large area of vegetation, including three ha of in-channel vegetation.
• In the western Main Basin region, only one third of the lake’s edge is vegetated, almost entirely with exotic species (99%) which are mostly Weeping Willows. In-channel vegetation is scarce with no aquatic species recorded.
• While 95% of the vegetated lake area is comprised of native species, this is predominantly remnant mature River Red Gum (Eucalyptus camaldulensis), with little evidence of regeneration.
• The spread of invasive Crack Willow trees, Dense Waterweed and Arrowhead are potential threats to the lake’s health. These species out-compete native vegetation and provide limited habitat for native species.
Only one extensive vegetation survey had been carried out prior to the 2004-2005 study, making it impossible to predict long-term trends.
However, using the baseline data gathered in this study, a comprehensive standardised monitoring program for vegetation at Lake Mulwala has been developed. The monitoring program will be repeated every five years, and will assess changes in abundance, composition, distribution and condition of riparian and aquatic vegetation.
Main Basin Central Region Everglades
ALL-ABILITIES ADVENTURE PLAY SPACE AT PURTLE PARK MULWALADRAFT LANDSCAPE CONCEPT PLAN CONTEXT AND THEMING
CONTEXT THEMES FOR EXPLORATION
INSPIRATION
THEMING
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EXISTING DESTINATION
FUTURE CONNECTION
STAGE 1 ADVENTURE PLAYSPACE
existing boat ramp removed
mooring inlet
FUTURE STAGE
Possible splash park
new ca
r par
king
new ca
r par
king
FUTURE STAGE
Possible community recreation
space
PARK ENTRY POINT
Existing picnic shelter & BBQ’s
Existing red gum
Proposed mooring inlet.
Proposed picnic shelter & BBQ
Upgraded toilet facilities
POSSIBLE LOCATION FOR FUTURE JETTY
POSSIBLE FUTURE STRUCTURE PLANTINGPOSSIBLE FUTURE LAKE EDGE PLANTING
POSSIBLE FUTURE BOARDWALK
SITE BOUNDARY.
EXTENT OF WORK FOR STAGE 1 (THIS PROJECT).
LEGEND
A natural landscape: before Lake Mulwala was constructed in 1941. The Murray River weaves through the red gum forest floodplain. source: www.ianluntecology.com
The Everglades Meandering wetlands and billabongs with high ecological values.
The Crooked Bridge
The Weir / Bridge
Central RegionHard edge to the water and iconic red gum trunks which provide important habitat.
Main BasinModified landscape of bridges, weir and channels.
A constructed landscape: Lake Mulwala today. The Murray and Ovens’ Rivers drain into the man-made lake. Water is diverted into the Mulwala and Yarrawonga channels and back into the Murray downstream of the weir. source: sixmaps
The varied landscape character types of Lake Mulwala. source:
Lake Mulwala Water Quality Study Vegetation Assessment
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The design explores how the Lake Mulwala landscape changes from natural to modified...
From the Murray and Ovens River systems of red gum forest and wetlands to the landscape of irrigated agriculture characterised by controlled water systems and weirs, lakes and channels at Mulwala. The lake’s history, ecology and its importance in supporting the food production economy are possible themes for interpretive and detail landscape elements.
Managing water for food production and river health.
Conserving and protecting biodiversity.
History of Lake Mulwala including saw-milling and construction of the channels,
weir and lake.
PROGRAM AND CIRCULATION
Three distinct use zones are proposed. The younger children’s playspace, including toilets and new picnic area, is fenced providing a secure and stress-free space for little ones and care-givers.
The older children’s playspace is part of the broader park landscape and leads to the more natural setting of the mooring inlet, existing red gums and secondary picnic area.
The design of playspace is inspired by the form of Lake Mulwala, and how the landscape character of the lake changes from natural to engineered from east to west.
The proposed mooring inlet and existing native trees reference the meandering watercourse’s and red gum forest of the Everglades. The main path takes inspiration from the original river path through the lake.
The forms of key iconic elements such as the bridge, weir and channels are referenced in play and other built elements.
p a s s i ve
mo d i f i
e d
n a t u r a la c t iv e
Unstructured nature play experiences.
Key feature.
Main path.
Secondary path.
Gate.
Older children’s play. Focus on challenging and unique play experiences.
Fenced younger children’s play. Focus on sensory experiences, nature and discovery.
Dwg 19003 LCP 01 ISSUE 09/05/19© Fiona Slade Landscape Architect ABN 68 437 343 209This Document is copyright protected and may only be used for the purpose for which it was commissioned. Unauthorised use prohibited. All dimensions and levels to be checked on the project before commencing any works or shop drawings. Drawings not to be scaled. CONCEPT DESIGN ONLY. NOT TO BE USED FOR CONSTRUCTION.
MELBO
URNE ST
REET
N
ALL-ABILITIES ADVENTURE PLAY SPACE AT PURTLE PARK MULWALADRAFT LANDSCAPE CONCEPT PLAN SITE PLAN
COLOURED CONCRETE TYPE 1
NATIVE TREE
CANOPY SHADE TREE
EXISTING TREE TO BE RETAINED
Mooring inlet
STEPSMain path
Gate
Gates
DISABLED PARKING
Pop-up food
outlets
Gate
Planting
Planting
‘Beach entry’ for mooring of small craft
Natural boulder edge
Existing picnic shelter, seating and
bbq’s
Future path connection
Tree to be removed
Future path connection
Fence set within planting
Secret path
+1.2m
+1.2m
+1.2m
+0.4m
+0.4m
+1.0m
+1.0m
+1.0m
Fence integrated with shelter
Fence set within planting
Existing car park to be removed and open grass area established
Existing boat ramp to be removed
MELBO
URNE ST
REET
LEGEND
COLOURED CONCRETE TYPE 2
COLOURED CONCRETE TYPE 3
RUBBER SOFTFALL TYPE 1
RUBBER SOFTFALL TYPE 2
RUBBER SOFTFALL TYPE 3
ORGANIC SOFTFALL
MULCH UNDER EXISTING TREES
WASHED PLAY SAND
WOODLAND PLANTING (SHRUBS, GROUNDCOVERS AND TUFTS)
CRUSHED COMPACTED GRANITE PAVING
LOW PLANTING (GROUNDCOVER AND TUFTS)
FEATURE WALLS
TODDLER PLAY. ROCKERS / SAND PLAY ELEMENTS IN SAND.
TODDLER PLAY. MOUND SLIDE AND CLIMBING ELEMENT.
WATER PLAY. PUMP, WEIRS AND OTHER ELEMENTS.
VERTICAL PLAY ELEMENTS TO WALL. MUSIC / SENSORY.
SPINNING ELEMENT.
ROPE PLAY FOR OLDER KIDS.
ENTRY WALL AND SIGN.
KEY PLAN nts
BASKET SWING. ENTRY FORECOURT WITH SEATS, BIKE RACK, DRINKING FOUNTAIN AND SIGNAGE.
‘WEIR’ SEAT WALL.THE PELICAN NEST HIDEAWAYS.
PROPOSED TOILET FACILITIES.FLYING FOX.
PICNIC SHELTER WITH TABLE SETTINGS AND BARBECUE.
NATUREPLAY: BALANCING.
NATUREPLAY: QUIET SPACES TO DISCOVER.
TREE TRUNK FENCE / PLAY EXPERIENCE.
‘THE CROOKED BRIDGE’ HERO ELEMENT. TOWERS, ENCLOSED ROPE BRIDGE AND SLIDE.
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Dwg 19003 LCP 02 ISSUE 09/05/19© Fiona Slade Landscape Architect ABN 68 437 343 209This Document is copyright protected and may only be used for the purpose for which it was commissioned. Unauthorised use prohibited. All dimensions and levels to be checked on the project before commencing any works or shop drawings. Drawings not to be scaled. CONCEPT DESIGN ONLY. NOT TO BE USED FOR CONSTRUCTION.
ALL-ABILITIES ADVENTURE PLAY SPACE AT PURTLE PARK MULWALADRAFT LANDSCAPE CONCEPT PLAN VIEWS
Dwg 19003 LCP 03 ISSUE 09/05/19© Fiona Slade Landscape Architect ABN 68 437 343 209This Document is copyright protected and may only be used for the purpose for which it was commissioned. Unauthorised use prohibited. All dimensions and levels to be checked on the project before commencing any works or shop drawings. Drawings not to be scaled. CONCEPT DESIGN ONLY. NOT TO BE USED FOR CONSTRUCTION.
TODDLER PLAY.Embankment slide to side of mound
and climbing equipment.
TODDLER PLAY.Rockers/ springers and in sand
sensory experiences. Nature play at a scale for little ones.
THE CROOKED BRIDGE.Hero element consisting of two towers connected by an enclosed rope bridge and including a slide.SPINNER.ROPE PLAY.(Behind Tree)
NATURE PLAYQuiet places to discover
TOILET
SHELTER
LAKE MULWALA
MELBOURNE STREET
EXISTING BBQ SHELTER
THE PELICAN NEST & HIDE AWAY FRAMES
BASKET SWING.
WATER PLAY.Pumps, weirs and other elements for
children to connect to the water.
FENCED PLAY AREA
VERTICAL PLAY.Musical instruments and sensory
play items to be incorporated into the playground wall.
RUBBER SOFTFALL MOUND
RUBBER SOFTFALL MOUND
REFERENCE IMAGE - HIDE AWAY FRAMES
REFERENCE IMAGE - BALANCE
REFERENCE IMAGE - INFORMAL NATURE PLAY
PLANTINGORGANIC SOFTFALL
CLIMBING EQUIPMENTEMBANKMENT SLIDETIMBER SOFTFALL
EXISTING TREE TO BE RETAINED
PROPOSED TOILET BLOCK
BALANCE, ROCKERS AND SAND PLAY
FLYING FOX.
BALANCE PLAY
MOORING INLET
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TODDLER PLAY.
WATER PLAY
ALL-ABILITIES ADVENTURE PLAY SPACE AT PURTLE PARK MULWALADRAFT LANDSCAPE CONCEPT PLAN MATERIALS AND ELEMENTS
Dwg 19003 LCP 04 ISSUE 09/05/19© Fiona Slade Landscape Architect ABN 68 437 343 209This Document is copyright protected and may only be used for the purpose for which it was commissioned. Unauthorised use prohibited. All dimensions and levels to be checked on the project before commencing any works or shop drawings. Drawings not to be scaled. CONCEPT DESIGN ONLY. NOT TO BE USED FOR CONSTRUCTION.
SOFTFALL TYPESACCESSIBLE PATHSCOLOURED EXPOSED CONCRETE MOORING INLET NATURAL EDGE TREATMENT
BULOKE FOREST SILVER WATTLE POA RIVER BOTTLEBRUSH
TOILETS SHELTER AND FENCE ARE INTEGRAL. OPEN VIEWS TO WATER.TREE TRUNK FOREST / FENCE
AN EXISTING AND FORMER LANDSCAPE OF RED GUM FOREST
MAN CONTROLLING NATURE. ENGINEERED STRUCTURES > STEEL, GIRDERS, HARD EDGES
MATERIALS
i n s p i r a t i o n
i n s p i r a t i o n
p o t e n t i a l e x p r e s s i o n
p o t e n t i a l e x p r e s s i o n
BUILT FORM
SURFACE FINISHES
STYLISED LOCAL PLANTINGS
Raw timber uprights evoke the red gums forest and wetland within the Everglades and the drowned trunks within the Central Region.