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Lockyer Creek Catchment
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Catchment Facts |
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- Total area: 2,974km2
- Stream network length: 6,056km
- Local Councils: Crows Nest (pop. 12,643), Esk (pop. 15,165), Gatton (pop. 15,639), Ipswich (pop. 140,181), Laidley (pop. 14,481), Toowoomba (pop. 90,199)
- Dominant land uses: native bush, grazing, intensive agriculture, rural residential
- The upper catchment remains forested
- Mid and lower catchment has been largely cleared
- The catchment has the highest proportion of land used for intensive agriculture in SEQ; irrigation has regulated water flow and changed groundwater dynamics
- Numerous impoundments are present in the catchment
- Instability of stream banks and gully erosion due to degradation of the riparian vegetation
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Freshwater results |
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Lockyer Catchment |
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- Streams generally in poor condition
- Scores for the physical/chemical, ecosystem processes, aquatic macroinvertebrates and fish indicators all remained low
- An increase in the score for the nutrient cycling indicator was offset by decreases in the physical/chemical and ecosystem processes indicators
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