Department of Environment and Science (DES)
Landscape Fragmentation and Connectivity (LFC) Tool version 1.7 LOGFILE
Process started at 27-08-2026 07:05:54 AM
Python version: 3.13.7 | packaged by Anaconda, Inc. | (main, Sep 11 2025, 16:13:29) [MSC v.1938 64 bit (AMD64)]
Arcpy version: 3.6.4
Username: tstringer

INPUT PARAMETERS
Output Workspace: R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\Arrow\OutputArrow
Threshold lookup table: R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\Arrow\LFC_data.gdb\tbl_Regional_frag_local_threshold
Remnant cover layer: R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\Arrow\LFC_data.gdb\ArrowRegVeg
Cover layer metadata title:Regulated vegetation management map - version 5.0
Remnant cover layer edited: True
Regional buffer extent: 20 kilometres
Local buffer will  be: 5 kilometres
Impact layer: R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\Disturbance\New File Geodatabase.gdb\Disturbance
layer projection: GDA2020
Raster cell resolution for analysis: 10 metres
Edge Width: 50 metres
(The distance from non-remnant landscapes through to the core ecosystem - the edge of remnant ecosystems)
Default projection: \\VDC12EUCFSX01.CH4.COM.AU\Apps\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\scripts_Toolbox\lfc_v2p01_arcpro\GDA 2020 Queensland AlbersOFFSET.prj


07:05:56  	Checking out the spatial analyst tool - required for LFC

07:05:56  	____________BEGINNING LANDSCAPE FRAGMENTATION AND CONNECTIVITY ANALYSIS___________

07:05:56  	This tool will categorise the landscape into: 
{0: 'non-rem', 1: 'patch', 2: 'edge', 3: 'perforated', 4: 'core (< 100 hectares)', 5: 'core (100-500 hectares)', 6: 'core (> 500 hectares)', 7: 'water'}

07:05:58  	R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\Arrow\OutputArrow\lyr_file does not exist, creating it now.
07:05:58  	Copying across impact site feature(s) and calculating area in hectares (AreaHA)
07:06:11  	Making a local copy of the impact site
07:06:43  	Preparing remnant cover layer for analysis
07:06:59  	Created regional scale buffer of 20 kilometres
07:07:12  	Created local scale buffer of 5 kilometres
07:07:44  	Clipped the remnant cover to the regional buffer extent
07:07:58  	Unioned the pre impact remnant layer with the impact site
07:08:14  	Attributed the impact area as cleared
07:08:14  	Area of RVM Cat B clearing is 42.1 hectares
07:08:14  	SQL selection used is RVM_CAT = 'B' and Landcover = 0 on shapefile 
R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\Arrow\OutputArrow\LFC_result.gdb\clip_remcover_post

07:08:14  	Categorised the cover attributes in clip_remcover_pre ready for raster conversion
07:08:58  	Converted clip_remcover_pre to raster

07:09:02  	Categorised the cover attributes in clip_remcover_post ready for raster conversion
07:09:52  	Converted clip_remcover_post to raster

07:09:52  	Run Landscape fragmentation analysis on the pre impact regional landscape

REGULATED VEGETATION TYPES BEING EXTRACTED FROM LAND COVER

IDENTIFYING OF CORE, PATCH, EDGE AND PERFORATIONS

COMBINING FRAGMENTATION CLASSES

CLASSIFYING CORE FOREST PATCHES BY AREA

COMPOSING FINAL FRAGMENTATION MAP

FINISHED: COMPOSING FINAL FRAGMENTATION MAP

(FRAGMENTATION CALCULATION TIME WAS 28.3 MINUTES)


07:39:52  	Run Landscape fragmentation analysis on the post impact regional landscape

REGULATED VEGETATION TYPES BEING EXTRACTED FROM LAND COVER

IDENTIFYING OF CORE, PATCH, EDGE AND PERFORATIONS

COMBINING FRAGMENTATION CLASSES

CLASSIFYING CORE FOREST PATCHES BY AREA

COMPOSING FINAL FRAGMENTATION MAP

FINISHED: COMPOSING FINAL FRAGMENTATION MAP

(FRAGMENTATION CALCULATION TIME WAS 29.8 MINUTES)


08:11:32  	Extracting a local subset of lfc_regional_pre_impact

08:12:30  	Extracting a local subset of lfc_regional_post_impact

08:13:23  	Collating pre and post impact statistics and trigger assessment

08:13:23  	Summarising area statistics for: lfc_local_pre_impact
08:13:23  	Summarising area statistics for: lfc_local_post_impact
08:13:24  	Summarising area statistics for: lfc_regional_pre_impact
08:13:27  	Summarising patch count for lfc_local_pre_impact
08:13:53  	Summarising patch count for lfc_local_post_impact

Analysing impact on Connectivity Areas

SIGNIFICANCE TEST ONE

The regional total area is 218793.86 
The regional extent of core remnant is 52338.02 
The regional extent of core remnant is 23.92 percent
This level of regional fragmentation sets a local impact threshold of: 5.0 percent

The table below lists the local impact thresholds for categories of regional core remnant extent:

REGIONAL CORE CATEGORY         LOCAL IMPACT THRESHOLD        
< 10                           2.0                           
10 - 30                        5.0                           
30 - 50                        10.0                          
50 - 70                        20.0                          
70 - 90                        30.0                          
>90                            50.0                          

Area of core at the local scale (pre impact): 9195.93
Area of core at the local scale (post impact): 9137.95
Percent change of core at the local scale (post impact): 0.63 percent

SIGNIFICANCE TEST TWO

The number of core remnant areas occurring on the site: 2
The number of core remnant areas remaining on the site post impact: 2
(Only core polygons greater than or equal to 1 hectare are included)


RESULT

08:15:14  	This analysis has determined any impact on connectivity areas is NOT significant
(A significant reduction in core remnant at the local scale is False OR a change from core to non-core remnant at the site scale is False)

The significance table has been written to: ..\main_output\lfc_significance_assessment.csv
The local scale summary table has been written to: ..\main_output\lfc_local_scale_summary.csv
The site scale summary table has been written to: ..\main_output\lfc_site_scale_summary.csv
GIS layer files copied into folder \lyr_file within the project folder.
View layers in ArcPro using..\R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\Arrow\OutputArrow\lyr_file\Connectivity Area Impact Assessment.lyrx

Please scrutinise the output tables and spatial layers to confirm the desktop modelling of connectivity area impact


This analysis used an edited version of the Regulated Vegetation layer.

08:22:07  	____________COMPLETED LANDSCAPE FRAGMENTATION AND CONNECTIVITY ANALYSIS___________