Department of Environment and Heritage Protection (DEHP)
Landscape Fragmentation and Connectivity (LFC) Tool version 1.4 LOGFILE
Process started at 21-01-2025 05:47:24 AM
Python version: 2.7.18 (v2.7.18:8d21aa21f2, Apr 20 2020, 13:19:08) [MSC v.1500 32 bit (Intel)]
Arcpy version: 10.8.1
Username: tstringer

INPUT PARAMETERS
Output Workspace: R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\Gov\OutputGov
Threshold lookup table: R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\scripts\lfc_v1p06_catalog\LFC_data.gdb\tbl_Regional_frag_local_threshold
Remnant cover layer: R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\Gov\LFC_data.gdb\GovRegVeg
Remnant cover layer edited: False
Regional buffer extent: 20 kilometres
Local buffer extent: 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: R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\GDA 2020 Queensland AlbersOFFSET.prj


05:47:25  	Checking out the spatial analyst tool - required for LFC

05:47:25  	____________BEGINNING LANDSCAPE FRAGMENTATION AND CONNECTIVITY ANALYSIS___________

05:47:25  	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'}

05:47:38  	R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\Gov\OutputGov\lyr_file does not exist, creating it now.
05:47:38  	Copying across impact site feature(s) and calculating area in hectares (AreaHA)
05:47:45  	Making a local copy of the impact site
05:47:53  	Preparing remnant cover layer for analysis
05:47:56  	Created regional scale buffer of 20 kilometres
05:47:59  	Created local scale buffer of 5 kilometres
05:48:15  	Clipped the remnant cover to the regional buffer extent
05:48:18  	Unioned the pre impact remnant layer with the impact site
05:48:24  	Attributed the impact area as not RVM Cat B
05:48:24  	Area of RVM Cat B clearing is 214.09 hectares
05:48:24  	SQL selection used is "RVM_CAT" = 'B' and "Cover" = 'Not RVM Cat B' on shapefile 
R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\Gov\OutputGov\main_output\clip_remcover_post.shp

05:48:28  	Categorised the cover attributes in clip_remcover_pre.shp ready for raster conversion
05:49:26  	Converted clip_remcover_pre.shp to raster

05:49:30  	Categorised the cover attributes in clip_remcover_post.shp ready for raster conversion
05:50:29  	Converted clip_remcover_post.shp to raster

05:50:29  	Run Landscape fragmentation analysis on the pre impact regional landscape

REGULATED VEGETATION TYPES BEING EXTRACTED FROM LAND COVER
IDENTIFICATION OF CORE, PATCH, EDGE AND PERFORATIONS 
COMBINING FRAGMENTATION CLASSES
CLASSIFYING CORE FOREST PATCHES BY AREA
COMPOSING FINAL FRAGMENTATION MAP
COMPOSING FINAL FRAGMENTATION MAP
(FRAGMENTATION CALCULATION TIME WAS 20.6 MINUTES)

06:11:05  	Run Landscape fragmentation analysis on the post impact regional landscape

REGULATED VEGETATION TYPES BEING EXTRACTED FROM LAND COVER
IDENTIFICATION OF CORE, PATCH, EDGE AND PERFORATIONS 
COMBINING FRAGMENTATION CLASSES
CLASSIFYING CORE FOREST PATCHES BY AREA
COMPOSING FINAL FRAGMENTATION MAP
COMPOSING FINAL FRAGMENTATION MAP
(FRAGMENTATION CALCULATION TIME WAS 20.1 MINUTES)

Extracting a local subset of lfc_regional_pre_impact
Extracting a local subset of lfc_regional_post_impact

Collating pre and post impact statistics and trigger assessment
06:32:26  	Summarising area statistics for: lfc_localmsk_pre_impact
06:32:26  	Summarising area statistics for: lfc_localmsk_post_impact
06:32:27  	Summarising area statistics for: lfc_regional_pre_impact
06:32:30  	Summarising patch count for lfc_localmsk_pre_impact
06:32:52  	Summarising patch count for lfc_localmsk_post_impact

Analysing impact on Connectivity Areas

SIGNIFICANCE TEST ONE

The regional total area is 382890.40 
The regional extent of core remnant is 126316.15 
The regional extent of core remnant is 32.99 percent
This level of regional fragmentation sets a local impact threshold of: 10.0 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): 28537.93
Area of core at the local scale (post impact): 27631.92
Percent change of core at the local scale (post impact): 3.17 percent

SIGNIFICANCE TEST TWO

The number of core remnant areas occurring on the site: 4
The number of core remnant areas remaining on the site post impact: 4
(Only core polygons greater than or equal to 1 hectare are included)


RESULT

06:33:39  	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 ArcMAP using..\R:\GIS\Geomatics_Shared\Scripts\MSES_MNES\4_LFC\Gov\OutputGov\lyr_file\lyr_file\Connectivity Area Impact Assessment.lyr

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


This analysis used an unedited copy of the Regulated Vegetation layer.

06:42:18  	____________COMPLETED LANDSCAPE FRAGMENTATION AND CONNECTIVITY ANALYSIS___________