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
page 7 von 32
B06
Title: Plant diversity
Team: Holger Kreft (UGoe), Katja Rembold (Postdoc),
Sri Sudarmiyati Tjitrosoedirdjo (IPB), Bambang
Haryadi (UNJA), Judith Krobbach, Christian Altenhövel
Aim:
Quantifying the effects of rainforest transformation
on plant diversity and ecosystem functioning.
Current status:
- First field phase completed (14.02.-15.05.2013),
focus on Bukit Duabelas landscape
- 30% of all core plots finished
- Currently, preparation of database and next
field trip, data analyses
- Half of herbarium specimen were stuck at National
Park Bukit Duabelas due to missing collecting
permit – identification cannot start before
December 2013
First data:
- Approx. 3000 herbarium specimen from ca. 686
plant species were prepared for identification
- All trees within plots BR1-4, BO2-4, BF3-4 are
measured (structure and position)
B07
- All plants within all subplots in BR1-4, BO2-4,
BF3-4 are counted and measured (height)
- About 20,000 plant pictures have been taken for
online identification guide / field guides
- Data on epiphytes from forest, rubber, and oil
palm plantations
- Data on arthropods associated with epiphytes
in oil palm plantations
- Bachelor thesis entitled “Diversität vaskulärer
Epiphyten im Vergleich zwischen Tieflandregenwald
und Kautschukplantagen auf Sumatra (Indonesien)”
submitted July 2013 by Tim Böhnert
Title: Functional diversity of mycorrhizal fungi
along a tropical land-use gradient
Team: Andrea Polle (UGoe), Bambang Irawan (UNJA),
Nur Edy, Josephine Sahner (PhD candidates), Sri
Wilarso Budi R (IPB), Henry Barus (UNTAD)
Aims: - Characterization of soil and root fungal diversity
in relation to root mineral nutrient content and
tree species diversity
- Short term mineral N uptake in
relation to mycorrhizal diversity
- Long term organic N uptake in relation to mycorrhiza
and forest type
Current status:
- Sampling in core plots of transformation systems
in Harapan and B12 except BJ5); rainforest
sides are missing
- UNJA: measurement of fresh/dry biomass of
roots and water content of soil, root tip counting,
freeze drying of samples
- Shipping of samples to Göttingen
- Göttingen: DNA extraction and preparation of
Pyrosequencing; Sanger sequencing; preparation
of samples for arbuscular mycorrhizal
colonization rate measurements; C/N measurements
of litter, soil and root samples; preparation
of samples for nutrient analysis
Available Data :
- Water content of soil, residual water content of
soil, fresh biomass of roots per soil core, fresh/
dry biomass of roots, proportion of dead and
alive (non-EcM and EM) roots tips, C/N content
of litter, soil and roots.
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