Chapter 5
5 Information base for the
Chowilla Floodplain and Lindsay-Wallpolla Islands system
5.1
Introduction
Part A-Chowilla Floodplain
5.2
Value and condition of Chowilla
Floodplain
5.2.1
Conservation significance of Chowilla
Floodplain
5.2.2
Geomorphology and hydrology of Chowilla
Floodplain
5.2.3
Vegetation classifications used at
Chowilla Floodplain
5.2.4
Floodplain vegetation distribution and
hydrological regime
5.2.5
Health of floodplain
vegetation
5.2.6
Birds
5.2.7
Mammals
5.2.8
Reptiles and amphibians
5.2.9
Fish
5.2.10
Macroinvertebrates
5.2.11
Aquatic macrophytes
5.2.12
Permanent and Semi-permanent Wetlands,
including anabranch creeks
5.2.13
Geomorphology of River Murray channel in
the zone containing Chowilla Floodplain
5.2.14
River salinity
5.2.15
Human use values
5.2.16
Summary of knowledge of the condition of
Chowilla Floodplain
5.3
Factors impacting on environmental
values of Chowilla Floodplain
5.3.1
Degree of change to flows due to river
regulation
5.3.2
Influence of weirs
5.3.3
Salinity and Groundwater
5.3.4
Other factors
5.4
Opportunities to meet objectives for
this site-Chowilla Floodplain
5.4.1
Introduction
5.4.2
Integrated catchment and salinity
management
5.4.3
Enhancement of natural floods to
increase their peak or duration using water releases from
storages
5.4.4
Complementary structural and operational
measures
5.4.5
Links
between ecological objectives and management opportunities-
Chowilla Floodplain
5.5
Examples of implementation of
environmental flows
5.5.1
Experimental watering of River red gums
on the Monoman Island Horseshoe, Chowilla Floodplain
5.5.2
Flood peak enhancement, combined with
weir raising at Lock 5 (located downstream of Chowilla
Floodplain)
Part B -
Lindsay-Wallpolla Islands
5.6
Value and condition of Lindsay-Wallpolla
Islands
5.6.1
Conservation significance of
Lindsay-Wallpolla Islands
5.6.2
Regional hydrology, and flow paths
within Lindsay-Wallpolla Islands
5.6.3
Flow thresholds and flow capacity for
Lindsay-Wallpolla Islands and Lake Wallawalla
5.6.4
Vegetation distribution at Lindsay and
Wallpolla Islands
5.6.5
Floodplain vegetation distribution and
hydrological regime
5.6.6
Health of floodplain
vegetation
5.6.7
Wetlands
5.6.8
Waterbirds
5.6.9
Fish
5.6.10
Salinity
5.6.11
Human use values
5.6.12
Summary of knowledge of the condition of
Lindsay-Wallpolla Islands
5.7
Factors impacting on environmental
values of Lindsay-Wallpolla Islands
5.7.1
Degree of change to flows due to river
regulation
5.7.2
Changes in the frequency and duration of
flow events
5.7.3
Other factors
5.8
Opportunities to meet objectives for
this site-Lindsay-Wallpolla Islands
5.8.1
Introduction
5.8.2
Use of environmental water
5.8.3
Structural and operational
measures
5.8.4
Links between ecological objectives and
management opportunities- Lindsay-Wallpolla Islands