Environment & Health >> Land & Natural Environment

Land & Natural Environment

Over 94% of the native vegetation in the local government area has been cleared. The remaining 6% exists in pockets and is threatened by isolation, grazing and weed invasion. The main areas of native vegetation remaining are on rocky ridgelines such as the McPherson Range, low lying areas such as black Box depressions and swamps and roadsides.

Less native vegetation usually indicates less native wildlife, as well as increased liklihood of salinity. Records show there are 29 threatened species, including frogs, bats and birds that are likely to occur in the local government area.

Council, Murrumbidgee Irrigation and Landcare Groups have been replanting native vegetation for a number of years within the region in an effort to manage salinity problems, provide a more beautiful environment, and care for our wildlife.

In the city area, planting of natives has been undertaken at recharge sites such as Scenic Hill (usually upslope, where rainfall sinks into the ground) and discharge sites such as Clifton Boulevarde (usually down slope, where groundwater rises to the surface). This program of planting will be continuing into the future.

Useful links:

NSW Department of Environment & Conservation
NSW Department of Planning
NSW Department of Natural Resources
NSW Department of Local Government
Local Government & Shires Association of NSW
Murrumbidgee Irrigation|
Native Vegetation Guide to the Riverina
NPWS Cocoparra National Park Profile
Charles Sturt University - Virtual Herbarium
Flora for Fauna
NSW NPWS Atlas of Wildlife
Queensland Fruit Fly Management Guide

Salinity

What is Salinity?

Salts are a natural part of the landscape in Australia and are found in the rocks, soil and shallow groundwater. Some salt is also carried within rain drops. Changes in land use over time have caused salts normally stored in soils and rocks to be dissolved in water and brought to the surface. When the water evaporates, the salts concentrate at or near the lands surface, and salinity can become a problem. It should be remembered though that whilst salt occurs naturally, the way we use and manage our land and water resources has a large impact on salinity.

Like many urban areas, Griffith and its villages are located in a salty landscape. Over watering of lawns, gardens and sporting fields can cause the groundwater to rise to the surface, bringing with it salts. Leaky pipes (stormwater, town water supply and sewage) and swimming pools can also cause water table levels to rise. Urban salinity can also be related to sub-surface water flows being impeded by structures such as roads and by poor drainage conditions. There may also be some influence to the mobility of salt and watertable depth locally, due to the use of water in the surrounding irrigation area.

Salinity damage shortens the life of urban infrastructure such as roads, buildings, paving, water and sewage pipes and can have detrimental effects on vegetation such as trees, gardens, lawns and playing fields. This leads to costly maintenance and repair by homeowners and councils.

To manage urban salinity the problem normally needs to be addressed at both the catchment (the surrounding rural and urban landscape) and local levels. This is because the groundwater responds to both catchment and local factors. Management practices within an urban centre alone are not normally sufficient.

At the local level, in the urban centre itself, there a number of management strategies that councils and residents could implement. These include:

For further information on Urban Salinity, click here to dowload Griffith City Council's Urban Salinity Pamphlet.