Effects of Land Use/Land Cover Change (LULCC) on Net Primary Production as a Proxy of Ecosystem
Services: a Case Study of Bongo District (Ghana) (2002-2010)
Gülendam Baysal
Supervisors: Prof. Dr. Sven Lautenbach , PD Dr. Christine Fürst
30-09-2014
• Introduction
• Study Area
• Data
• Analyses
• Findings
Outline
Introduction
Source: (Petrosillo, I. et al.,MEA, 2005; Gaston, 2000; Odum, 1971; Wallace, 2007) (Foley et. al., 2005)
(USGS-LCA, 2013)
Study Area
Data
MOD17A3 Net Primary Production (NPP) (1km) LULC From MODIS and LANDSAT ( 30m)
sf:0.0001
Analyses
0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00
1998 2000 2002 2004 2006 2008 2010 2012
Variability in Minimum and Maximum Temperature in Rainy Season
Max Temp (Mean RS) Min Tem (Mean RS)
0.00 200.00 400.00 600.00 800.00 1000.00 1200.00
1998 2000 2002 2004 2006 2008 2010 2012
NPP vs Rainfall
NPP (kg C/m2) Total Rainfall (Mean RS)
Analyses
0 0.2 0.4 0.6 0.8 1 1.2
2002 2004 2006 2008 2010
Mean NPP (kg C /m2) and LULC
Copland Forest Grass Mixed Vegetation Artificial Surfaces
Main LULCC Trajectories
0 200 400 600 800 1000 1200 1400 1600
AA AC AG AM AW CA CC CF CG CW FC FF GA GC GG GM GW MA MC MG MM MW WA WC WG WM WW
LULCC(2004_2006)
A Artificial Surfaces
C Cropland
F Forest
G Grass
M Mixed Vegetation
W Water
0 200 400 600 800 1000 1200 1400 1600
AA AC AG AM AW CA CC CF CG CW FC FF GA GC GG GM GW MA MC MG MM MW WA WC WG WM WW
LULCC(2002_2004)
0 200 400 600 800 1000 1200 1400 1600
AA AC AG AM AW CA CC CF CG CW FC FF GA GC GG GM GW MA MC MG MM MW WA WC WG WM WW
LULCC(2006_2008)
Cropland to Grassland Grassland to Cropland
Grassland to Mixed Vegetation Mixed Vegetation to Grassland
0 200 400 600 800 1000 1200 1400 1600
AA AC AG AM AW CA CC CF CG CW FC FF GA GC GG GM GW MA MC MG MM MW WA WC WG WM WW
LULCC(2008_2010)
LULCC vs NPP
2002_2004 2002_2004
GM-CG GM-GC MG-GC MG-GM
MG-GC
A Artificial Surfaces
C Cropland
F Forest
G Grass
M Mixed Vegetation
W Water
2006_2008 2008_2010
GM-CG
GM-GC MG-CG
MG-GC
A Artificial Surfaces
C Cropland
F Forest
G Grass
M Mixed Vegetation
W Water
MG-GC
Findings
• NPP ~ Precipitation: There is a significant relation between NPP and precipitation
• NPP ~ Temperature: Temperature variability in rainy season is not significant
• NPP ~ LULCC: According to ANOVA results for each sample year significant differences occur between :
MG(Mixed Vegetation to Grassland) and GC(Grassland to Cropland)
Data Provided by
• Land Use /Cover data: Gerald Forkour (WASCAL WP 2.1)
• Temperature and Rainfall: Ghana Meteorological Agency
• MODIS- NPP: Africa Soil Information Service
gbaysal@uni-bonn.de
Analyses
0 20 40 60 80 100 120 140 160
y2002 y2004 y2006 y2008 y2010
NPP vs LULC
Cropland Forest Grass Mixed Vegetation Artificial Surfaces Water
0 5000 10000 15000 20000 25000
2002 2004 2006 2008 2010
LULC Area (ha)
Cropland Forest Grass Grass and Shrub Artificial Surfaces Water
0 2000 4000 6000 8000 10000 12000
Total NPP per LULC Type / Area
Results
0 5000 10000 15000 20000 25000
2002 2004 2005 2006 2007 2008 2010
LULC 2002-2010 (ha)
Cropland Forest Grass Grass and Shrub Artificial Surfaces Water
