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Our Catchment
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The Border Rivers-Gwydir Catchment occupies an area of approximately 50,000 square kilometres. The principal rivers that drain the inland slopes of the eastern highlands are the Dumaresq, Severn and Macintyre. The Gwydir River is located in the south west of the Catchment. The Border Rivers-Gwydir Catchment Management Authority services the entire Gwydir Catchment (approx 26,500km2) and the NSW portion of the Border Rivers Catchment (approx 24,000km2). Both of these catchments are located within the Murray-Darling Basin. They are bounded by the Queensland border in the north and west, the Great Dividing Range in the east and the Namoi Catchment in the south. |
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The Border Rivers-Gwydir Catchment covers a considerable region, as diverse in climate and land types as it is in use. The catchment has a temperate to sub-tropical climate, with a considerable gradient from east (cooler and wetter) to west (hotter and drier). It contains distinct landform types of tablelands, slopes and plains, and four bioregions - New England tablelands, Brigalow Belt South, Nandewar and Darling Riverine plains (see Quick Catchment Statistics below).
The vegetation varies from high altitude areas of the eastern catchment boundary, consisting of patches of extensively forested areas to the graduation west of more open forest, shrublands and grassy plains.
Grazing is the principal agricultural enterprise on the tablelands, with a shift to cropping on the slopes. Further west to the plains there is an increasing use of irrigation, which has led to an intensification of farming enterprises.
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Quick Catchment Statistics
| Area | 50,000 square kilometres |
|---|---|
| Population | 50,000 (approx.) |
| Climate | Temperate to sub-tropical |
| Rainfall | 600mm (west) to 1200mm (east) |
| Landforms | Tablelands, Slopes, Plains |
| Bioregions | New England Tablelands, Brigalow Belt South, Nandewar, Darling Riverine Plains - each document is 5MB in size |
| Vegetation | Forest to open forest, to shrublands and grassy plains |
| Agriculture | Grazing and Cropping |
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