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Effects of Logging in the Congo Basin Rainforests, by Rachel Kornak
4
Transcript
Research Team:
http://www.sitemaker.umich.edu/cafi/research_team
How to Measure Road Patterns?
It's as easy as...
1
Select Best
Images from
~500 Available
Landsat Imagery: ~1985, ~2002, ~2008
Customize
Remote Sensing
Data
21 Individual Landsat Scenes
Create
GIS
Data
Create GIS Roads Over Time
~1985, ~2002, ~2008
Width, Connectivity &
Visibility Attributes
2
Customize GIS Management Boundaries and History
History of Use Attributes
Road Patterns Vary by Location and Time
Spatial &
Statistical
Analysis
3
Intersect, Union
Buffer, Clip, Dissolve
Create Fishnets
Spatial & Table Joins
Field Calculator
Summary Statistics
Pivot Tables
Road Patterns
By Management Unit Over Time
years in the making...
4
Logging
Companies
Clear Cutting
Bare Patches = Evidence of Logging
Build Roads
Timber
Extraction
Deforestation
& Degradation
Effects of Logging in the Congo Basin Rainforests
Rachel Kornak, GISP
GIS & Database Manager
University of Michigan
rnk114@psu.edu
@rkornak
Enables Access
to Remote Areas
Villages
Illegal Hunting
Agriculture
Plantations
NSF Funded Research Project
Acknowledgements:
How Can You Quanity using Remote Sensing and GIS
?
Project Advisory Board: http://www.sitemaker.umich.edu/cafi/advisory_committee
Did increased
funding & policy changes
lead to improved
on-the-ground
forest conditions
$
?
Repeat in other regions to reduce forest degradation?
Selective Logging
Roads = Evidence of Logging
Location and Pattern of Logging Roads = Evidence of Different Management Practices
Time
Pattern Type
Geostatistical Analyst
Exploratory Spatial Data Analysis Tools - Normal QQ Plot
egression
R
Normal
Distribution?
Spatial
Autocorrelation?
C
o
r
e
l
a
t
i
o
n
Next Steps...
Statistical Analysis
& Modeling
Explain Variation in Road Patterns
-% Forest Cover
-Suitable Slope
-Topo. Wetness Index
Accessibility
Suitability
for Logging
-Proximity to Major Roads
-Proximity to Shipping Ports
-Topographic Variability
-River Density
Management
-Country
-Legal Use Over Time
-Ownership Over Time
-Yrs Used for Logging
REDD+
Climate Change
Deforestation
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