CRC 990 - EFForTS - Georg-August-Universität Göttingen

CRC 990 Ecological and Socioeconomic Functions of Tropical Lowland Rainforest Transformation Systems (Sumatra, Indonesia) Issue 1 / August 2013
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- 4 permanent monitoring plots running in the
Bukit Duabelas landscape (BR3, BJ5, BF3, BO3)
- 12 of the remaining 28 plots measured
- Age-class measurements on oil palm currently
running
- Soil water uptake: 7 plots in rubber and jungle
rubber / Harapan research area have been sampled;
currently waiting for the next dry season
- Workshops on Ecohydrology and sap flux (forthcoming)
at IPB
A04
of June 2013. Once a final location is confirmed
the tower will be installed there
- Regional climate model installed at GWDG and
DKRZ
First results:
- Soils between plots are not homogenous,
there is an important
variation of texture
- No sign of major erosion (isotope analysis)
A05
A03
Title: Influence on local and regional climate
Team: Oleg Panferov (UGoe), Alexander Knohl (UGoe)
Abdul Rauf (Palu, UNTAD), Tania June (IPB), Dodo
Gunawan (BMKG), Irianto, Heri Junedi (UNJA),
Ana Meijide, Merja Tölle, Mathias Herbst (PhD
students)
Aims: - Quantify the water, energy and greenhouse gas
balance over an oil palm plantation
- Assess the impact of land transformations
on feedbacks to regional climate (start in late
9/2013)
Current status:
- A small temporary tower has been built in a
young oil palm plantation in Pompa Air (Harapan
landscape) and it is running since the end
Title: Stock, turnover and functions of carbon
Team: Yakov Kuzyakov (UGoe), Muhammad Damris
(UNJA), Kukuh Murtilaksono (IPB), Thomas Guillaume
(PhD student)
Aims: - Assessment of changes in stock, quality and stability
of C
- Mechanisms and processes of C sequestration in
top and subsoil
- Changes of functions of stored C for soil fertility
Current status:
- All soil samples taken
- Samples from HJ, HR, HO, BF exported
- Laboratory analysis started
- Installation of suction cups and export of remaining
soil samples (May to July 2013)
Title: Trace gas fluxes and soil N cycling under rainforest
transformation systems
Team: Marife D. Corre (UGoe), Edzo Veldkamp (UGoe),
M. Damris (UNJA), Sri Rahayu Utami (UB), Iman
Rusmana (IPB), Kara Allen, Evelyn Preuß, S. Kurniawan
(PhD students)
Aims: - Quantify changes in soil trace gas fluxes (NO,
N2O, CH4,CO2) with land-use changes
- Assess whether leaf axils of oil palms are sources
or sinks of trace gases
- Quantify land-use change effects on soil N-cycling
rates
- Assess changes in soil chemical and physical
characteristics with land-use changes
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