Cost effectiveness assessment .......................................................................................................... 92
Roads and Drains Water Quality Monitoring Project ........................................................................ 94 Additional outcomes from the LDC Project ............................................................................................... 97 Informing future priorities and design .................................................................................................... 101 Sub-catchment load contributions and ‘ hot spots ’ ......................................................................... 101 Guidance for prioritising landscape remediation activities ............................................................ 106 Recommendations for BBB project design and implementation .................................................... 108 Ongoing water quality monitoring and evaluation ......................................................................... 110
References ............................................................................................................................................... 111 Appendix 1 : LDC practice change and incentive type overview ...................................................................... 113
Appendix 2 : Overview of the Paddock to Reef Program Source Catchment Modelling to support the Landholders Driving Change Project ............................................................................................................... 115
Table 1 . Recommended monitoring guide for the LDC Project , as of October 2018 .. ...................................... 18 Table 2 . Estimated sediment reductions ( tonnes ) from projects completed in the LDC Project to date . ........ 22 Table 3 . Summary of outcomes reported to date for the activities in the LDC Project .. .................................. 30 Table 4 . Summary of the treatment history and water quality outcomes measured in the LDC Project . ........ 36 Table 5 . Summary of the Source Catchments catchment modelling cycle in the BBB . ................................... 38 Table 6 . Modelled fine sediment reductions at the scale of the Burdekin basin for projects completed through to June 2020 from all investment schemes . Note that there was no model run in 2017 , resulting in a combined 2017 and 2018 Report Card released in 2019 . ................................................................................. 41 Table 7 . Bowen-Broken-Bogie regional contribution to the Burdekin catchment ( end of valley ) fine sediment , particulate nitrogen and phosphorus load reductions ( tonnes / year of load reduction ), from all BBB investment stream projects completed through to June 2020 . ........................................................................ 41 Table 8 . Predicted fine sediment savings at the sub-catchment scale as a result of projects initiated by the LDC Project across all years of reportable practice change 2019 – 2021 . ........................................................ 43 Table 9 . Predicted fine sediment savings at the sub-catchment scale because of projects initiated by the LDC Project across all years of reportable practice change 2019 – 2021 . ................................................................ 44 Table 10 . A , B , C , D Land condition results for Mt Wickham . ............................................................................ 56 Table 11 . Summary of monitoring outcomes for the 2017-18 , 2018-19 , 2019-20 and 2020-21 wet seasons at the Mt Wickham treatment and control sites .. ................................................................................................. 57 Table 12 . Summary of monitoring outcomes for the 2019-20 and 2020-21 wet seasons at the Mt Pleasant treatment and control sites .. ............................................................................................................................. 67 Table 13 . Summary of monitoring outcomes for the 2018-19 , 2019-20 and 2020-21 wet seasons at the Mt Pleasant treatment and control sites .. .............................................................................................................. 72 Table 14 . Adoption rates of large grazing properties in the BBB before and after LDC Project implementation . Derived from project data collated by NQDT . ................................................................................................... 98 Table 15 . BBB sub-catchment fine sediment , particulate nitrogen and phosphorus yields ( t / ha / y ) from the Source Catchments model estimates . ............................................................................................................. 102 Table 16 . BBB sub-catchment contributions (%) to regional fine sediment , particulate nitrogen and phosphorus export ( at Burdekin end of catchment ) from the Source Catchments model estimates . ........... 103 Table 17 . Summary of sub-catchment characteristics that may assist in future prioritisation of investment in the BBB catchments . ....................................................................................................................................... 105
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