1. „Analyses and management of
M.Sc.- Geography
„Analyses and management of
Natural Resources “
Prof. Dr. Gerold
PD Dr. Jungkunst

2. Principal Motivation and Foci in Göttingen
Man and Environment – local, regional and global conflicts
Development and management of restricted natural resources particularly: Water and soil (Carbon, Nitrogen and Nutrients)
Greenhouse gas budgets
Cooperation in Göttingen:
Centre for Tropical and Subtropical Agriculture and Forestry Göttingen Centre for Biodiversity and Ecology

3. Some research examples:
Soil erosion:
Upcoming South Africa (Heinz Beckedahl, KwaZulu-Natal)
Beckedahl

4. Some research examples: C-CO2 Equivalents g m-2 y-1
Wetland restoration and associated greenhouse gas budgets
Running in Germany and Russia
Upcoming: South Africa (Heinz Beckedahl, KwaZulu-Natal)
( Biomass + 3 Greenhouse gases)
C-CO2 Equivalents g m-2 y-1
restored
drained

5. Some research examples:
Rainforest conversion
Slash & burn and mechanised colonization in the Oriente of Bolivia- 2002
0,4 – 0,6 %/yr Deforestation rate (a. FAO 1993, 2001, 2007) 0,8 – 1,4 %/yr – 0.6 %/yr

6. Field station – Oriente Ecuador
Methods
SVAT
Field station – Oriente Ecuador
Forest conversion 1984 – 2001 in East Bolivia = 1.6 Mio. ha

7. With spatial GIS-modeling distribution and loss of SOC a
With spatial GIS-modeling distribution and loss of SOC a. N after forest conversion since 1970 in the lowlands of Santa Cruz (Bolivia) (Krüger&Gerold 2006)
n = 112
n = 69
≥ 20a loss total = 45-52% SOC
2001
t ha-1 (0-20 cm) Nt
SOC
2,6-4,6
23-49
2,3-4,0
18-39
2,0-3,7
16-34
1,5-3,5
12-28
1,3-3,0
09-22

8. Combining Regression models and Calculation of opportunity costs
Was the land use plan from 1996 respected (regarding agro-industry)?
Or does the economic potential better explain observed forest conversion?

9. Linking „site analysis“ with „catchment analysis“
Precipitation
Evaporation
Transpiration
Throughfall
Evaporation
Stemflow
Surface run-off
Run-off
Infiltration
Soil Water Reservoir
Interflow
Deep Percolate/Leaching
Precipitation
Current evapotranspiration
Infiltration
Throughfall
Evaporation
capillary rise
Litter Evaporation
Surface run-off
Soil Evaporation
Interflow
Transpiration
Groundwater run-off

10. SFB project area in Central Sulawesi (left) and forest loss 2001 to 2007 ( - 0.32%/year)
Leemhuis,Erasmi,Twele,Kreilein,Oltchev,Gerold 2007, Erasmi 2008

11. Rainforest conversion and flood – Dec. 2003 – Dongi Dongi Indonesia
Rainforest conversion in Indonesia 11

12. Effect of land use change on the water balance: Gumbasa watershed
Intensification of high water discharge
Discharge (2003): status quo 2003: 590 mm
land use scenario A1: 838 mm + 42%  1200m annual crops
Land use scenario A2: 724 mm + 23%  1200m change into cacao
SCENARIO APPLICATION
Gerold & Leemhuis 2008

13. Consequences for livelihood and household income
Climate change and land use change effects the water resources
Klimavariabilität
Climate variability
Landnutzung
Wassernutzung
Water use
Land use
Wasserressourcen
Water resources
Spatial analyses of ENSO- and land use effects in watersheds
Transdisciplinary approach
Consequences for livelihood and household income

14. The impact of El Niño on crop yields
Yield decline of the most important crops due to ENSO-related drought in Central Sulawesi.
Yield decline entails a depression of total annual household income by 1/3.

15. Potential collaboration Modules
GIS (Geoinformationssystems)
Complex spatial Perspectives of Landscape ecology
Catchment hydrology and hydrochemistry
Spatial and temporal (hydrological, soil erosion, biogeochemical) Modeling
Analyses and management of natural resources