Key Localities Gully Remediation (NESP TWQ 5.9, CSIRO)

Brief description

Seven paired Control/Treatment gully sites on commercial grazing properties in the Burdekin are presented here as part of the monitoring project NESP TWQ Project 5.9 - Gully Remediation Effectiveness as an extension to the NESP TWQ Project 2.1.4 - Demonstration and evaluation of gully remediation on downstream water quality and agricultural production in GBR rangelands (Bartley et al., 2018). Five sites were funded as part of NESP TWQ, with two of these five including Reef Trust 2 Partnership funding, and an additional 2 sites included here are funded by Landholders Driving Change (LDC). The key question being asked is “is there measurable improvement in the erosion and water quality leaving remediated gully sites compared to sites left untreated?” The monitoring approach uses a modified BACI (Before after control impact) design. There are two sites in the Upper Burdekin sites (Virginia Park and Meadowvale) which capitalize on previous research investments looking at rangeland management and water quality response. The Bogie (Strathbogie) and Don (Minnievale) sites are Reef Trust 2 partnership projects. Mt Wickham is a new site that is part of the Burdekin Landholders Driving Change (LDC) project and then NESP funding. Glen Bowen and Mt Pleasant received funding from Landholders Driving Change (LDC). This dataset includes key Gully monitoring localities (headcuts and monitoring instrumentation) and outlines of the properties within which they are located. Methods: Key Gully Localities were extracted from the 2017 or 2018 RTK GPS surveys for each gully site (see Site_Configuration_and_Survey dataset). Property Boundaries were generated by extracting polygons from the 2016 Digital Cadastre Database (DCDB) and simplifying to a single polygon. Area in hectares was calculated and appended to polygon attributes. KMZ’s are exported version of the original ArcGIS shapefiles Format: This data collection consists of two shapefiles (zipped) and two equivalent KMZ files with the following names: NESP_Gully_Key_localities: Key gully localities include the RTK GP location of the instrumentation and the RTK GPS location of the nickpoint in the gully headcut rim. NESP_Gully_Property_Boundaries: Boundaries for the properties on which the paired control/treatment gullies are located. Data Dictionary: Attributes for Property_Boundaries.shp include property NAME and the area in hectares (AREA_HA). Attributes for Key Locations include X,Y (MGA94 Z55) and Z (AHD) Timestamp associated when RTK surveyed Type- HEADCUT, INSTR Survey – type of survey and year, APPROX is best guess from Lidar or GoogleEarth Site_Code – short form code for sites where MIV = Minnievale MV = Meadowvale MW = Mount Wickham SB = Strathbogie VP = Virginia Park MTP = Mount Pleasant GLB = Glen Bowen - Treatment/Control Property – Full name of property Treat_type – Treatment or control References: Bartley, R., Hawdon, A., Henderson, A., Wilkinson, S., Goodwin, N., Abbott, B., Baker, B., Matthews, M., Boadle, D., Telfer, D., Smith, B., Jarihani, B. and Burkin, G., 2017. Quantifying the effectiveness of gully remediation on offsite water quality: preliminary results from demonstration sites in the Burdekin catchment. Project 2.1.4. Report to the National Environmental Science Programme. Reef and Rainforest Research Centre Limited, Cairns (76pp.). Bartley, R., Hawdon, A., Henderson, A., Abbott, B., Wilkinson, S., Goodwin, N. and Ahwang, K. (2020) Quantifying the effectiveness of gully rehabilitation on water quality: results from demonstration sites in the Burdekin catchment. Report to the National Environmental Science Program. Reef and Rainforest Research Centre Limited, Cairns (146pp.). eAtlas Processing: The data were received as a shapefile and KMZ file, and were published with no changes to the underlying data. Minor changes to the metadata description was made on revision of the metadata collection (11-Oct-2023) to reduce ambiguity around data collected under this project and the earlier 2.1.4 project. Site codes for MTP and GLB were added for reference in the Data Dictionary, and final report citation (5.9) eAtlas processing notes were added to summarise the provenance of the record. Data Location: This dataset is filed in the eAtlas enduring data repository at: data\nesp5\5.9-Gully-remediation-effectiveness